EXHIBIT 1.1
                                3,400,000 SHARES
                          DIGITAL THEATER SYSTEMS, INC.
                                  COMMON STOCK
                             UNDERWRITING AGREEMENT
                                                                          , 2003
                                                                 --------
▇▇ ▇▇▇▇▇ SECURITIES CORPORATION
   ▇▇▇▇▇▇▇ ▇▇▇▇▇ & COMPANY
   ▇▇▇▇▇▇ ▇▇▇▇▇▇ PARTNERS LLC
   As Representatives of the several Underwriters
c/o ▇▇ ▇▇▇▇▇ Securities Corporation
▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇
▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇ ▇▇▇▇▇
Dear Sirs:
1. INTRODUCTORY. Digital Theater Systems, Inc., a Delaware corporation (the
"Company") proposes to sell, pursuant to the terms of this Agreement, to the
several underwriters named in Schedule A hereto (the "Underwriters," or, each,
an "Underwriter"), an aggregate of 3,400,000 shares of Common Stock, $0.0001 par
value (the "Common Stock") of the Company. The aggregate of 3,400,000 shares so
proposed to be sold is hereinafter referred to as the "Firm Stock". The selling
stockholders named in Schedule B hereto (the "Selling Stockholders") propose to
sell to the Underwriters, upon the terms and subject to the conditions set forth
in Section 3 hereof, up to an additional 510,000 shares of Common Stock (the
"Optional Stock"). The Firm Stock and the Optional Stock are hereinafter
collectively referred to as the "Stock". ▇▇ ▇▇▇▇▇ Securities Corporation ("▇▇
▇▇▇▇▇"), ▇▇▇▇▇▇▇ ▇▇▇▇▇ & Company and ▇▇▇▇▇▇ ▇▇▇▇▇▇ Partners LLC are acting as
representatives of the several Underwriters and in such capacity are hereinafter
referred to as the "Representatives." As part of the offering contemplated by
this Agreement, ▇▇▇▇▇▇ ▇▇▇▇▇▇ Partners LLC (the "Designated Underwriter") has
agreed to reserve out of the Firm Stock purchased by it under this Agreement, up
to 170,000 shares, for sale to the Company's customers and business partners and
friends of the Company's officers, directors and employees (collectively,
"Participants"), as set forth in the Prospectus (as defined herein) under the
heading "Underwriting" (the "Directed Share Program"). The Firm Securities to be
sold by the Designated Underwriter pursuant to the Directed Share Program (the
"Directed Shares") will be sold by the Designated Underwriter pursuant to this
Agreement at the public offering price. Any Directed Shares not subscribed for
by the end of the business day on which this Agreement is executed will be
offered to the public by the Underwriters as set forth in the Prospectus.
2. (I) REPRESENTATIONS AND WARRANTIES OF THE COMPANY. The Company represents and
warrants to, and agrees with, the several Underwriters that:
         (a) A registration statement on Form S-1 File No. 333-104761 (the
         "Initial Registration Statement") in respect of the Stock has been
         filed with the Securities and Exchange Commission
                                                                               2
         (the "Commission"); the Initial Registration Statement and any
         post-effective amendment thereto, each in the form heretofore delivered
         to you for each of the other Underwriters, and, excluding exhibits
         thereto, have been declared effective by the Commission in such form;
         other than a registration statement, if any, increasing the size of the
         offering (a "Rule 462(b) Registration Statement"), filed pursuant to
         Rule 462(b) under the Securities Act of 1933, as amended (the
         "Securities Act") and the rules and regulations (the "Rules and
         Regulations") of the Commission promulgated thereunder, which became
         effective upon filing, no other document with respect to the Initial
         Registration Statement has heretofore been filed with the Commission;
         and no stop order suspending the effectiveness of the Initial
         Registration Statement, any post-effective amendment thereto or the
         Rule 462(b) Registration Statement, if any, has been issued and no
         proceeding for that purpose has been initiated or threatened by the
         Commission (any preliminary prospectus included in the Initial
         Registration Statement or filed with the Commission pursuant to Rule
         424(a) of the Rules and Regulations is hereinafter called a
         "Preliminary Prospectus"); the various parts of the Initial
         Registration Statement and the Rule 462(b) Registration Statement, if
         any, including all exhibits thereto and including the information
         contained in the form of final prospectus filed with the Commission
         pursuant to Rule 424(b) under the Securities Act and deemed by virtue
         of Rule 430A under the Securities Act to be part of the Initial
         Registration Statement at the time it was declared effective, each as
         amended at the time such part of the Initial Registration Statement
         became effective or such part of the Rule 462(b) Registration
         Statement, if any, became or hereafter becomes effective, are
         hereinafter collectively called the "Registration Statements"; and such
         final prospectus, in the form first filed pursuant to Rule 424(b) under
         the Securities Act, is hereinafter called the "Prospectus." No document
         has been or will be prepared or distributed in reliance on Rule 434
         under the Securities Act. No order preventing or suspending the use of
         any Preliminary Prospectus has been issued by the Commission.
         (b) The Initial Registration Statement conforms (and the Rule 462(b)
         Registration Statement, if any, the Prospectus and any amendments or
         supplements to either of the Registration Statements or the Prospectus,
         when they become effective or are filed with the Commission, as the
         case may be, will conform) in all material respects to the requirements
         of the Securities Act and the Rules and Regulations and do not and will
         not, as of the applicable effective date (as to the Registration
         Statements and any amendment or supplement thereto) and as of the
         applicable filing date (as to the Prospectus and any amendment or
         supplement thereto) contain any untrue statement of a material fact or
         omit to state any material fact required to be stated therein or
         necessary to make the statements therein, in light of the circumstances
         in which they were made, not misleading; provided, however, that the
         foregoing representations and warranties shall not apply to information
         contained in or omitted from the Registration Statements or the
         Prospectus or any such amendment or supplement thereto in reliance
         upon, and in conformity with, written information furnished to the
         Company through the Representatives by or on behalf of any Underwriter
         specifically for inclusion therein.
         (c) The Company and each of its subsidiaries (as defined in Section 14)
         have been duly incorporated and are validly existing as corporations in
         good standing under the laws of their respective jurisdictions of
         incorporation, are duly qualified to do business and are in good
         standing as foreign corporations in each jurisdiction in which their
         respective ownership or lease of property or the conduct of their
         respective businesses requires such qualification, and have all
         corporate power and authority necessary to own or hold their respective
         properties and to conduct the businesses in which they are engaged,
         except where the failure to so qualify or have such power or authority
         would not have, singularly or in the aggregate, a material adverse
         effect on the condition (financial or otherwise), results of
         operations, business or prospects of the Company and its subsidiaries
         taken as a whole (a "Material Adverse Effect").
                                                                               3
         (d) This Agreement has been duly authorized executed and delivered by
         the Company.
         (e) The Firm Stock to be issued and sold by the Company to the
         Underwriters hereunder has been duly and validly authorized and, when
         issued and delivered against payment therefor as provided herein, will
         be duly and validly issued, fully paid and nonassessable and free of
         any preemptive or similar rights and will conform to the description
         thereof contained in the Prospectus.
         (f) The Company has an authorized capital stock as set forth in the
         Prospectus. All of the issued shares of capital stock of the Company
         have been duly and validly authorized and issued, are fully paid and
         non-assessable and conform to the description thereof contained in the
         Prospectus. None of the outstanding shares of Common Stock were issued
         in violation of any preemptive rights, rights of first refusal or other
         similar rights to subscribe for or purchase securities of the Company
         other than such rights that have been waived. There are no authorized
         or outstanding options, warrants, preemptive rights, rights of first
         refusal or other rights to purchase, or equity or debt securities
         convertible into or exchangeable or exercisable for, any capital stock
         of the Company other than as set forth in the Prospectus.
         (g) All the outstanding shares of capital stock of each subsidiary of
         the Company have been duly authorized and validly issued, are fully
         paid and nonassessable and, except to the extent set forth in the
         Prospectus, are owned by the Company directly or indirectly through one
         or more wholly-owned subsidiaries, free and clear of any claim, lien,
         encumbrance, security interest, restriction upon voting or transfer or
         any other claim of any third party. The Company owns or controls,
         directly or indirectly, only the following corporations, associations
         or other entities: DTS Consumer Products, Inc., a Delaware corporation;
         DTS Entertainment, LLC, a Delaware limited liability company; Digital
         Theater Systems (UK) Limited, a United Kingdom private limited company;
         DTS (BVI) Limited, a British Virgin Islands limited liability company;
         DTS (Asia) Limited, a Hong Kong limited liability company; DTS China
         Holding Limited, a British Virgin Islands limited liability company;
         DTS China Licensing (Hong Kong) Limited, a Hong Kong limited liability
         company; and Guangzhou DTS Digital Theater Systems Co. Ltd., a People's
         Republic of China limited liability company.
         (h) The execution, delivery and performance of this Agreement by the
         Company and the consummation of the transactions contemplated hereby
         will not (i) conflict with or result in a breach or violation of any of
         the terms or provisions of, or constitute a default under, any
         indenture, mortgage, deed of trust, loan agreement or other agreement
         or instrument to which the Company or any of its subsidiaries is a
         party or by which the Company or any of its subsidiaries is bound or to
         which any of the property or assets of the Company or any of its
         subsidiaries is subject, (ii) result in any violation of the provisions
         of the charter or by-laws of the Company or any of its subsidiaries or
         (iii) result in any violation of any statute or any order, rule or
         regulation of any court or governmental agency or body having
         jurisdiction over the Company or any of its subsidiaries or any of
         their properties or assets, except any conflicts, breaches or
         violations with respect to (i), (ii) and/or (iii) which, singularly or
         in the aggregate, would not have a Material Adverse Effect.
         (i) Except for the registration of the Stock under the Securities Act
         and such consents, approvals, authorizations, registrations or
         qualifications as may be required under the Exchange Act and applicable
         state securities laws, the National Association of Securities Dealers,
         Inc. and the Nasdaq National Market in connection with the purchase and
         distribution of the Stock by the Underwriters, no consent, approval,
         authorization or order of, or filing or registration with, any such
         court or governmental agency or body is required for the execution,
         delivery and
                                                                               4
         performance of this Agreement by the Company and the consummation of
         the transactions contemplated hereby.
         (j) The Company has taken all necessary actions to ensure that, upon
         and at all times after the effectiveness of the Registration Statement,
         it will be in compliance with all applicable provisions of the
         ▇▇▇▇▇▇▇▇-▇▇▇▇▇ Act of 2002 (the "▇▇▇▇▇▇▇▇-▇▇▇▇▇ Act") that are then in
         effect and is actively taking steps to ensure that it will be in
         compliance with other applicable provisions of the ▇▇▇▇▇▇▇▇-▇▇▇▇▇ Act
         not currently in effect upon and at all times after the effectiveness
         of such provisions.
         (k) The Company has taken all necessary actions to ensure that, upon
         the approval of the Stock for inclusion on the Nasdaq National Market
         System ("Nasdaq"), it will be in compliance with all applicable
         corporate governance requirements set forth in the Nasdaq Marketplace
         Rules that are then in effect and is actively taking steps to ensure
         that it will be in compliance with other applicable corporate
         governance requirements set forth in the Nasdaq Marketplace Rules not
         currently in effect upon and at all times after the effectiveness of
         such requirements.
         (l) PricewaterhouseCoopers LLP, who have expressed their opinions on
         the audited financial statements and related schedules included in the
         Registration Statements and the Prospectus, are independent public
         accountants as required by the Securities Act and the Rules and
         Regulations.
         (m) The financial statements, together with the related notes and
         schedules, included in the Prospectus and in each Registration
         Statement fairly present the financial position and the results of
         operations and changes in financial position of the Company and its
         consolidated subsidiaries at the respective dates or for the respective
         periods therein specified. Such statements and related notes and
         schedules have been prepared in accordance with generally accepted
         accounting principles applied on a consistent basis except as may be
         set forth in the Prospectus. The financial statements, together with
         the related notes and schedules, included in the Prospectus comply in
         all material respects with the Securities Act and the Rules and
         Regulations thereunder. No other financial statements or supporting
         schedules or exhibits are required by the Securities Act or the Rules
         and Regulations thereunder to be included in the Prospectus.
         (n) Neither the Company nor any of its subsidiaries has sustained,
         since the date of the latest audited financial statements included in
         the Prospectus, any material loss or interference with its business
         from fire, explosion, flood or other calamity, whether or not covered
         by insurance, or from any labor dispute or court or governmental
         action, order or decree, otherwise than as set forth or contemplated in
         the Prospectus; and, since such date, there has not been any change in
         the capital stock (other than issuances of options in the ordinary
         course of business and pursuant to the Plans disclosed in the
         Prospectus or the issuance of Common Stock upon the exercise of
         outstanding options and warrants) or long-term debt of the Company or
         any of its subsidiaries or any material adverse change, or any
         development involving a prospective material adverse change, in or
         affecting the business, general affairs, management, financial
         position, stockholders' equity or results of operations of the Company
         and its subsidiaries taken as a whole, otherwise than as set forth or
         contemplated in the Prospectus.
         (o) Except as set forth in the Prospectus, there is no legal or
         governmental proceeding pending to which the Company or any of its
         subsidiaries is a party or of which any property or assets of the
         Company or any of its subsidiaries is the subject which, singularly or
         in the aggregate, if determined adversely to the Company or any of its
         subsidiaries, might have a Material Adverse Effect or would prevent or
         adversely affect the ability of the Company to perform its obligations
         under this Agreement; and to the best of the Company's knowledge, no
                                                                               5
         such proceedings are threatened or contemplated by any governmental
         authorities or threatened by others.
         (p) Neither the Company nor any of its subsidiaries (i) is in violation
         of its charter or by-laws, (ii) is in default in any respect, and no
         event has occurred which, with notice or lapse of time or both, would
         constitute such a default, in the due performance or observance of any
         term, covenant or condition contained in any indenture, mortgage, deed
         of trust, loan agreement or other agreement or instrument to which it
         is a party or by which it is bound or to which any of its property or
         assets is subject or (iii) is in violation in any respect of any law,
         ordinance, governmental rule, regulation or court decree to which it or
         its property or assets may be subject except any violations or defaults
         with respect to (i), (ii) and/or (iii) which, singularly or in the
         aggregate, would not have a Material Adverse Effect.
         (q) The Company and each of its subsidiaries possess all licenses,
         certificates, authorizations and permits issued by, and have made all
         declarations and filings with, the appropriate local, state, federal or
         foreign regulatory agencies or bodies which are necessary or desirable
         for the ownership of their respective properties or the conduct of
         their respective businesses as described in the Prospectus except where
         any failures to possess or make the same, singularly or in the
         aggregate, would not have a Material Adverse Effect, and the Company
         has not received notification of any revocation or modification of any
         such license, authorization or permit and has no reason to believe that
         any such license, certificate, authorization or permit will not be
         renewed.
         (r) Neither the Company nor any of its subsidiaries is or, after giving
         effect to the offering of the Stock and the application of the proceeds
         thereof as described in the Prospectus will become an "investment
         company" within the meaning of the Investment Company Act of 1940, as
         amended and the rules and regulations of the Commission thereunder.
         (s) Neither the Company nor any of its officers, directors or, to the
         Company's knowledge, affiliates, has taken or will take, directly or
         indirectly, any action designed or intended to stabilize or manipulate
         the price of any security of the Company, or which caused or resulted
         in, or which might in the future reasonably be expected to cause or
         result in, stabilization or manipulation of the price of any security
         of the Company.
         (t) The Company and its subsidiaries own or possess the right to use
         all patents, trademarks, trademark registrations, service marks,
         service ▇▇▇▇ registrations, trade names, copyrights, licenses,
         inventions, trade secrets and rights described in the Prospectus as
         being owned or possessed by them and own or possess the right to use
         all intellectual property necessary for the conduct of their respective
         businesses, and the Company is not aware of any claim to the contrary
         or any challenge by any other person to the rights of the Company and
         its subsidiaries with respect to the foregoing. The Company's business
         as now conducted and as proposed to be conducted does not and will not
         infringe or conflict with any patents, trademarks, service marks, trade
         names, copyrights, trade secrets, licenses or other intellectual
         property or franchise right of any person. Except as described in the
         Prospectus, no claim has been made or is likely to be made against the
         Company alleging the infringement by the Company of any patent,
         trademark, service ▇▇▇▇, trade name, copyright, trade secret, license
         in or other intellectual property right or franchise right of any
         person.
         (u) The Company and each of its subsidiaries have good and marketable
         title in fee simple to, or have valid rights to lease or otherwise use,
         all items of real or personal property which are material to the
         business of the Company and its subsidiaries taken as a whole, in each
         case free and clear of all liens, encumbrances, claims and defects that
         may result in a Material Adverse
                                                                               6
         Effect, except such liens set forth in that certain Revolving Credit
         Agreement, dated as of October 24, 1997, between the Company and
         Imperial Bank (Comerica), as amended.
         (v) No labor disturbance by the employees of the Company or any of its
         subsidiaries exists or, to the best of the Company's knowledge, is
         imminent which might be expected to have a Material Adverse Effect. The
         Company is not aware that any key employee or significant group of
         employees of the Company or any subsidiary plans to terminate
         employment with the Company or any such subsidiary.
         (w) No "prohibited transaction" (as defined in Section 406 of the
         Employee Retirement Income Security Act of 1974, as amended, including
         the regulations and published interpretations thereunder ("ERISA"), or
         Section 4975 of the Internal Revenue Code of 1986, as amended from time
         to time (the "Code")) or "accumulated funding deficiency" (as defined
         in Section 302 of ERISA) or any of the events set forth in Section
         4043(b) of ERISA (other than events with respect to which the 30-day
         notice requirement under Section 4043 of ERISA has been waived) has
         occurred with respect to any employee benefit plan which could have a
         Material Adverse Effect; each employee benefit plan is in compliance in
         all material respects with applicable law, including ERISA and the
         Code; the Company has not incurred and does not expect to incur
         liability under Title IV of ERISA with respect to the termination of,
         or withdrawal from, any "pension plan"; and each "pension plan" (as
         defined in ERISA) for which the Company would have any liability that
         is intended to be qualified under Section 401(a) of the Code is so
         qualified in all material respects and nothing has occurred, whether by
         action or by failure to act, which could cause the loss of such
         qualification.
         (x) Except as disclosed in the Prospectus or as otherwise would not,
         singly or in the aggregate, have a Material Adverse Effect or otherwise
         require disclosure in the Prospectus, (i) neither the Company nor any
         of its subsidiaries has been or is in violation of any federal, state
         or local laws or regulation relating to pollution or protection of
         human health or the environment, including, without limitation, laws
         and regulations relating to emissions, discharges, releases or
         threatened releases of toxic or hazardous substances, materials or
         wastes, or petroleum and petroleum products ("Materials of
         Environmental Concern"), or otherwise relating to the protection of
         human health and safety, or the use, treatment, storage, disposal,
         transport or handling of Materials of Environmental Concern
         (collectively, "Environmental Laws"), which violation includes, without
         limitation, noncompliance with, or lack of, any permits or other
         environmental authorizations; (ii) to the Company's knowledge, there
         are no circumstances, either past, present or that are reasonably
         foreseeable, that may lead to any such violation in the future; (iii)
         neither the Company nor any of its subsidiaries has received any
         communication (written or oral), whether from a governmental agency or
         body or otherwise, alleging any such violation; (iv) there is no
         pending or threatened claim, action, investigation, notice (written or
         oral) or other proceeding by any person or entity alleging potential
         liability of either the Company or any of its subsidiaries (or against
         any person or entity for whose acts or omissions the Company or any of
         its subsidiaries is or may reasonably be expected to be liable, either
         contractually or by operation of law) for investigatory, cleanup, or
         other response costs, or natural resources or property damages, or
         personal injuries, attorney's fees or penalties relating to (A) the
         presence, or release into the environment, of any Materials of
         Environmental Concern at any location, or (B) circumstances forming the
         basis of any violation or potential violation, of any Environmental Law
         (collectively, "Environmental Claims"); and (v) to the Company's
         knowledge, there are no past or present actions, activities,
         circumstances, conditions, events or incidents that could form the
         basis of any Environmental Claim.
                                                                               7
         (y) The Company and its subsidiaries each (i) have filed with all
         necessary federal, state and foreign income and franchise tax returns,
         (ii) have paid all federal state, local and foreign taxes due and
         payable for which it is liable, and (iii) do not have any tax
         deficiency or claims outstanding or assessed or, to the best of the
         Company's knowledge, proposed against it which could reasonably be
         expected to have a Material Adverse Effect.
         (z) The Company and each of its subsidiaries carry, or are covered by,
         insurance in such amounts and covering such risks as is adequate for
         the conduct of their respective businesses and the value of their
         respective properties and as is customary for companies engaged in
         similar businesses in similar industries.
         (aa) The Company and each of its subsidiaries maintains a system of
         internal accounting controls sufficient to provide reasonable
         assurances that (i) transactions are executed in accordance with
         management's general or specific authorization, (ii) transactions are
         recorded as necessary to permit preparation of financial statements in
         conformity with generally accepted accounting principles and to
         maintain accountability for assets, (iii) access to assets is permitted
         only in accordance with management's general or specific authorization,
         and (iv) the recorded accountability for assets is compared with
         existing assets at reasonable intervals and appropriate action is taken
         with respect to any differences.
         (bb) The minute books of the Company and each of its subsidiaries have
         been made available to the Underwriters and counsel for the
         Underwriters, and such books (i) contain a complete summary of all
         meetings and actions of the board of directors (including each
         committee thereof) and stockholders of the Company and each of its
         subsidiaries since the time of its respective incorporation through the
         date of the latest meeting and action, and (ii) accurately in all
         material respects reflect all transactions referred to in such minutes.
         (cc) There is no franchise, lease, contract, agreement or document
         required by the Securities Act or by the Rules and Regulations to be
         described in the Prospectus or to be filed as an exhibit to the
         Registration Statements which is not described or filed therein as
         required; and all descriptions of any such franchises, leases,
         contracts, agreements or documents contained in the Registration
         Statements are accurate and complete descriptions of such documents in
         all material respects. Other than as described in the Prospectus, no
         such franchise, lease, contract or agreement has been suspended or
         terminated for convenience or default by the Company or any of the
         other parties thereto, and the Company has not received notice or any
         other knowledge of any such pending or threatened suspension or
         termination, except for such pending or threatened suspensions or
         terminations that would not reasonably be expected to, singularly or in
         the aggregate, have a Material Adverse Effect.
         (dd) No relationship, direct or indirect, exists between or among the
         Company on the one hand, and the directors, officers, stockholders,
         customers or suppliers of the Company on the other hand, which is
         required to be described in the Prospectus and which is not so
         described.
         (ee) No person or entity has the right to require registration of
         shares of Common Stock or other securities of the Company because of
         the filing or effectiveness of the Registration Statements or
         otherwise, except for persons and entities who have expressly waived
         such right or who have been given timely and proper notice and have
         failed to exercise such right within the time or times required under
         the terms and conditions of such right.
         (ff) Neither the Company nor any of its subsidiaries own any "margin
         securities" as that term is defined in Regulation U of the Board of
         Governors of the Federal Reserve System (the "Federal Reserve Board"),
         and none of the proceeds of the sale of the Stock will be used,
         directly
                                                                               8
         or indirectly, for the purpose of purchasing or carrying any margin
         security, for the purpose of reducing or retiring any indebtedness
         which was originally incurred to purchase or carry any margin security
         or for any other purpose which might cause any of the Securities to be
         considered a "purpose credit" within the meanings of Regulation T, U or
         X of the Federal Reserve Board.
         (gg) Neither the Company nor any of its subsidiaries is a party to any
         contract, agreement or understanding with any person that would give
         rise to a valid claim against the Company or the Underwriters for a
         brokerage commission, finder's fee or like payment in connection with
         the offering and sale of the Stock.
         (hh) No forward-looking statement (within the meaning of Section 27A of
         the Securities Act and Section 21E of the Exchange Act) contained in
         the Prospectus has been made or reaffirmed without a reasonable basis
         or has been disclosed other than in good faith.
         (ii) The Stock has been approved for listing subject to notice of
         issuance on the Nasdaq Stock Market's National Market.
         (jj) The Registration Statements, the Prospectus and the Preliminary
         Prospectus comply, and any further amendments or supplements thereto
         will comply, with any applicable laws or regulations of foreign
         jurisdictions in which they are distributed in connection with the
         Directed Share Program. No authorization, approval, consent, license,
         order, registration or qualification of or with any government,
         governmental instrumentality or court, other than such as have been
         obtained, is necessary under the securities laws or regulations of any
         foreign jurisdiction in which the Directed Shares are offered outside
         the United States.
         (kk) The Company has not offered, or caused the Underwriters to offer,
         any Firm Stock to any person pursuant to the Directed Share Program
         with the specific intent to unlawfully influence (i) a customer or
         business partner of the Company to alter the customer's or business
         partner's level or type of business with the Company or (ii) a trade
         journalist or publication to write or publish favorable information
         about the Company or its products.
         (II) REPRESENTATIONS AND WARRANTIES AND AGREEMENTS OF THE SELLING
STOCKHOLDERS. Each Selling Stockholder severally represents and warrants to, and
agrees with, the several Underwriters that such Selling Stockholder:
         (a) Has, and immediately prior to each Option Closing Date (as defined
         in Section 3 hereof) the Selling Stockholder will have, good and valid
         title to the shares of Stock to be sold by the Selling Stockholder
         hereunder on such date, free and clear of all liens, encumbrances,
         equities or claims; and upon delivery of such shares and payment
         therefor pursuant hereto, good and valid title to such shares, free and
         clear of all liens, encumbrances, equities or claims, will pass to the
         several Underwriters.
         (b) Has duly and irrevocably executed and delivered a power of
         attorney, in substantially the form heretofore delivered by the
         Representatives (the "Power of Attorney"), appointing each of ▇▇▇ ▇.
         ▇▇▇▇▇▇▇▇ and ▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇ as attorney-in-fact (the
         "Attorney-in-Fact") with authority to execute and deliver this
         Agreement on behalf of such Selling Stockholder, to authorize the
         delivery of the shares of Stock to be sold by such Selling Stockholder
         hereunder and otherwise to act on behalf of such Selling Stockholder in
         connection with the transactions contemplated by this Agreement.
         (c) Has duly and irrevocably executed and delivered a custody
         agreement, in substantially the form heretofore delivered by the
         Representatives (the "Custody Agreement"), with Equiserve,
                                                                               9
         Inc. as custodian (the "Custodian"), pursuant to which certificates in
         negotiable form for the shares of Stock to be sold by such Selling
         Stockholder hereunder have been placed in custody for delivery under
         this Agreement.
         (d) Has full right, power and authority to enter into this Agreement,
         the Power of Attorney and the Custody Agreement; the execution,
         delivery and performance of this Agreement, the Power of Attorney and
         the Custody Agreement by such Selling Stockholder and the consummation
         by such Selling Stockholder of the transactions contemplated hereby and
         thereby will not conflict with or result in a breach or violation of
         the charter or bylaws of such Selling Stockholder (if such Selling
         Stockholder is a corporation) or articles of partnership of such
         Selling Stockholder (if such Selling Stockholder is a partnership) or
         any of the terms or provisions of, or constitute a default under, any
         indenture, mortgage, deed of trust, loan agreement or other agreement
         or instrument to which such Selling Stockholder is a party or by which
         the Selling Stockholder is bound or to which any of the property or
         assets of the Selling Stockholder is subject, nor will such actions
         result in any violation of any statute or any order, rule or regulation
         of any court or governmental agency or body having jurisdiction over
         the Selling Stockholder or the property or assets of the Selling
         Stockholder; and, except for the registration of the Stock under the
         Securities Act and such consents, approvals, authorizations,
         registrations or qualifications as may be required under the Exchange
         Act and applicable state securities laws, the National Association of
         Securities Dealers, Inc. and the Nasdaq National Market in connection
         with the purchase and distribution of the Stock by the Underwriters, no
         consent, approval, authorization or order of, or filing or registration
         with, any such court or governmental agency or body is required for the
         execution, delivery and performance of this Agreement, the Power of
         Attorney or the Custody Agreement by such Selling Stockholder and the
         consummation by the Selling Stockholder of the transactions
         contemplated hereby and thereby.
         (e) The Registration Statements do not, and the Prospectus and any
         further amendments or supplements to the Registration Statements or the
         Prospectus will not, as of the applicable effective date (as to the
         Registration Statements and any amendment thereto) and as of the
         applicable filing date (as to the Prospectus and any amendment or
         supplement thereto) contain any untrue statement of a material fact or
         omit to state any material fact required to be stated therein or
         necessary to make the statements therein, in light of the circumstances
         in which they were made, not misleading. The preceding sentence applies
         only to the extent that any information contained in or omitted from
         the Registration Statements or Prospectus was in reliance upon and in
         conformity with written information furnished to the Company by such
         Selling Stockholder specifically for inclusion therein.
         (f) Such Selling Stockholder has not taken and will not take, directly
         or indirectly, any action designed to or that might reasonably be
         expected to cause or result in the stabilization or manipulation of the
         price of any security of the Company to facilitate the sale or resale
         of the any shares of Stock.
3. PURCHASE SALE AND DELIVERY OF OFFERED SECURITIES. On the basis of the
representations, warranties and agreements herein contained, but subject to the
terms and conditions herein set forth, the Company agrees to sell to each
Underwriter, and each Underwriter agrees, severally and not jointly, to purchase
from the Company, that number of shares of Firm Stock set forth opposite the
name of such Underwriter in Schedule A hereto (subject to adjustment by ▇▇ ▇▇▇▇▇
to eliminate fractions). The purchase price per share to be paid by the
Underwriters to the Company for the Stock will be $[_____] per share (the
"Purchase Price").
                                                                              10
         The Company will deliver the Firm Stock to the Representatives for the
respective accounts of the several Underwriters (in the form of definitive
certificates, issued in such names and in such denominations as the
Representatives may direct by notice in writing to the Company given at or prior
to 12:00 Noon, New York time, on the second full business day preceding the
First Closing Date (as defined below) against payment of the aggregate Purchase
Price therefor by same-day wire transfer to an account at a bank reasonably
acceptable to ▇▇ ▇▇▇▇▇, payable to the order of the Company, all at the offices
of Heller, Ehrman, White & ▇▇▇▇▇▇▇▇▇, LLP ▇▇▇▇ ▇▇ ▇▇▇▇▇ ▇▇▇▇▇▇▇ ▇▇▇▇▇, ▇▇▇
▇▇▇▇▇, ▇▇▇ ▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇. Time shall be of the essence, and delivery
at the time and place specified pursuant to this Agreement is a further
condition of the obligations of each Underwriter hereunder. The time and date of
the delivery and closing shall be at 7:00 A.M., California time, on [ ], 2003,
in accordance with Rule 15c6-1 of the Exchange Act. The time and date of such
payment and delivery are herein referred to as the "First Closing Date". The
First Closing Date and the location of delivery of, and the form of payment for,
the Firm Stock may be varied by agreement between the Company and ▇▇ ▇▇▇▇▇. The
Company shall make the certificates for the Firm Stock available to the
Representatives for examination on behalf of the Underwriters in San Diego,
California at least twenty-four hours prior to the First Closing Date.
         For the purpose of covering any over-allotments in connection with the
distribution and sale of the Firm Stock as contemplated by the Prospectus, the
Underwriters may purchase from the Selling Stockholders and the Company up to
all of the Optional Stock. The price per share to be paid for the Optional Stock
shall be the Purchase Price. The Selling Stockholders agree, severally and not
jointly, to sell to the Underwriters up to all of the numbers of shares of
Optional Stock set forth opposite the names of such Selling Stockholders in
Schedule B hereto under the caption "Number of Optional Shares to be Sold", in
such aggregate amounts as determined by the Representatives in their discretion;
provided, however, that in the event the Representatives shall exercise the
right, on behalf of the Underwriters, to purchase less than all of the Optional
Stock, each Selling Stockholder shall sell that number of shares set forth
opposite his, her or its name on Schedule B in the same proportion, relative to
the other Selling Stockholders, as that number of total shares of Optional Stock
subject to the over-allotment option set forth in this Section 3, and provided
further that, in the event the aggregate number of shares of Optional Stock sold
by the Selling Stockholders is less than the aggregate number of shares of
Optional Stock exercised by the Representatives, the Company shall sell to the
Underwriters the number of shares of Optional Stock that, together with the
number of shares of Optional Stocks sold by the Selling Stockholders, equals the
number of shares of Optional Stock exercised by the Representatives. Such shares
of Optional Stock shall be purchased for the account of each Underwriter in the
same proportion as the number of shares of Firm Stock set forth opposite such
Underwriter's name bears to the total number of shares of Firm Stock (subject to
adjustment by ▇▇ ▇▇▇▇▇ to eliminate fractions). The option granted hereby may be
exercised as to all or any part of the Optional Stock at any time, and from time
to time, up to three times, not more than thirty (30) days subsequent to the
date of this Agreement. No Optional Stock shall be sold and delivered unless the
Firm Stock previously has been, or simultaneously is, sold and delivered. The
right to purchase the Optional Stock or any portion thereof may be surrendered
and terminated at any time upon notice by ▇▇ ▇▇▇▇▇ to the Company and the
Selling Stockholders.
         The option granted hereby may be exercised by written notice being
given to the Company and the Selling Stockholders by ▇▇ ▇▇▇▇▇ setting forth the
number of shares of the Optional Stock to be purchased by the Underwriters and
the date and time for delivery of and payment for the Optional Stock. Each date
and time for delivery of and payment for the Optional Stock (which may be the
First Closing Date, but not earlier) is herein called an "Option Closing Date"
and shall in no event be earlier than two (2) business days nor later than five
(5) business days after written notice is given. (The Option Closing Dates and
the First Closing Date are herein called the "Closing Dates".)
         The Selling Stockholders and the Company will deliver the Optional
Stock to the Underwriters (in the form of definitive certificates, issued in
such names and in such denominations as the
                                                                              11
Representatives may direct by notice in writing to the Company given at or prior
to 12:00 Noon, New York time, on the second full business day preceding an
Option Closing Date against payment of the aggregate Purchase Price therefor by
same-day funds by wire transfer to an account at a bank reasonably acceptable to
▇▇ ▇▇▇▇▇ payable to the order of Equiserve, Inc., as Custodian for the Selling
Stockholders all at the offices of Heller, Ehrman, White & ▇▇▇▇▇▇▇▇▇, LLP ▇▇▇▇
▇▇ ▇▇▇▇▇ ▇▇▇▇▇▇▇ ▇▇▇▇▇, ▇▇▇ ▇▇▇▇▇, ▇▇▇ ▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇. Time shall be of
the essence, and delivery at the time and place specified pursuant to this
Agreement is a further condition of the obligations of each Underwriter
hereunder. The Company and the Selling Stockholders shall make the certificates
for the Optional Stock available to the Representatives for examination on
behalf of the Underwriters in San Diego, California not later than 7:00 A.M.,
California time, on the business day preceding an Option Closing Date. Any
Option Closing Date and the location of delivery of, and the form of payment
for, the Optional Stock may be varied by agreement among the Company, the
Selling Stockholders and ▇▇ ▇▇▇▇▇.
         The several Underwriters propose to offer the Stock for sale upon the
terms and conditions set forth in the Prospectus.
(4) (I) FURTHER AGREEMENTS OF THE COMPANY. The Company agrees with the several
Underwriters that:
         (a) The Company will prepare the Rule 462(b) Registration Statement, if
         necessary, in a form approved by the Representatives and file such Rule
         462(b) Registration Statement with the Commission on the date hereof;
         prepare the Prospectus in a form approved by the Representatives and
         file such Prospectus pursuant to Rule 424(b) under the Securities Act
         not later than the second business day following the execution and
         delivery of this Agreement; make no further amendment or any supplement
         to the Registration Statements or to the Prospectus to which the
         Representatives shall reasonably object by notice to the Company after
         a reasonable period to review, other than any such amendment or
         supplement which, in the opinion of legal counsel to the Company, is
         required by applicable laws or regulations to be filed; advise the
         Representatives, promptly after it receives notice thereof, of the time
         when any amendment to either Registration Statement has been filed or
         becomes effective or any supplement to the Prospectus or any amended
         Prospectus has been filed and to furnish the Representatives with
         copies thereof; advise the Representatives, promptly after it receives
         notice thereof, of the issuance by the Commission of any stop order or
         of any order preventing or suspending the use of any Preliminary
         Prospectus or the Prospectus, of the suspension of the qualification of
         the Stock for offering or sale in any jurisdiction, of the initiation
         or threatening of any proceeding for any such purpose, or of any
         request by the Commission for the amending or supplementing of the
         Registration Statements or the Prospectus or for additional
         information; and, in the event of the issuance of any stop order or of
         any order preventing or suspending the use of any Preliminary
         Prospectus or the Prospectus or suspending any such qualification, use
         promptly its best efforts to obtain its withdrawal.
         (b) If at any time prior to the expiration of nine months after the
         effective date of the Initial Registration Statement when a prospectus
         relating to the Stock is required to be delivered any event occurs as a
         result of which the Prospectus as then amended or supplemented would
         include any untrue statement of a material fact, or omit to state any
         material fact necessary to make the statements therein, in light of the
         circumstances under which they were made, not misleading, or if it is
         necessary at any time to amend the Prospectus to comply with the
         Securities Act, the Company will promptly notify the Representatives
         thereof and upon their request will prepare an amended or supplemented
         Prospectus which will correct such statement or omission or effect such
         compliance. The Company will furnish without charge to each Underwriter
         and to any dealer in securities as many copies as the Representatives
         may from time to time reasonably request of such amended or
         supplemented Prospectus; and in case any Underwriter is required to
         deliver a prospectus relating to the Stock nine months or more after
         the effective date of the
                                                                              12
         Initial Registration Statement, the Company upon the request of the
         Representatives and at the expense of such Underwriter will prepare
         promptly an amended or supplemented Prospectus as may be necessary to
         permit compliance with the requirements of Section 10(a)(3) of the
         Securities Act.
         (c) To furnish promptly to each of the Representatives and to counsel
         for the Underwriters a signed copy of each of the Registration
         Statements as originally filed with the Commission, and each amendment
         thereto filed with the Commission, including all consents and exhibits
         filed therewith.
         (d) To deliver promptly to ▇▇ ▇▇▇▇▇ Securities Corporation in New York
         City such number of the following documents as the Representatives
         shall reasonably request: (i) conformed copies of the Registration
         Statements as originally filed with the Commission and each amendment
         thereto (in each case excluding exhibits), (ii) each Preliminary
         Prospectus, and (iii) the Prospectus (not later than 10:00 A.M., New
         York time, of the business day following the execution and delivery of
         this Agreement, or such later date agreed to by the Company and the
         Representatives) and any amended or supplemented Prospectus (not later
         than 10:00 A.M., New York City time, on the business day following the
         date of such amendment or supplement or such later date agreed to by
         the Company and ▇▇ ▇▇▇▇▇ Securities Corporation).
         (e) To make generally available to its stockholders as soon as
         practicable, but in any event not later than eighteen months after the
         effective date of the Registration Statement (as defined in Rule 158(c)
         under the Securities Act), an earnings statement of the Company and its
         subsidiaries (which need not be audited) complying with Section 11(a)
         of the Securities Act and the Rules and Regulations (including, at the
         option of the Company, Rule 158).
         (f) The Company will promptly take from time to time such actions as
         the Representatives may reasonably request to qualify the Stock for
         offering and sale under the securities or Blue Sky laws of such
         jurisdictions as the Representatives may designate in writing to the
         Company and to continue such qualifications in effect for so long as
         required for the distribution of the Stock; provided that the Company
         and its subsidiaries shall not be obligated to qualify as foreign
         corporations in any jurisdiction in which they are not so qualified or
         to file a general consent to service of process in any jurisdiction;
         (g) During the period of five years from the date hereof, the Company
         will deliver to the Representatives and, upon request, to each of the
         other Underwriters, (i) as soon as they are available, copies of all
         reports or other communications furnished to stockholders and (ii) as
         soon as they are available, copies of any reports and financial
         statements furnished or filed with the Commission pursuant to the
         Exchange Act or any national securities exchange or automatic quotation
         system on which the Stock is listed or quoted.
         (h) The Company will not directly or indirectly offer, sell, assign,
         transfer, pledge, contract to sell, or otherwise dispose of any shares
         of Common Stock or securities convertible into or exercisable or
         exchangeable for Common Stock for a period of 180 days from the date of
         the Prospectus without the prior written consent of ▇▇ ▇▇▇▇▇ other than
         (i) the Company's sale of the Stock hereunder, (ii) the issuance of
         options to purchase shares of Common Stock in the ordinary course of
         business and pursuant to the Company's 1997 Stock Option Plan, 2002
         Stock Option Plan, 2003 Equity Incentive Plan, 2003 Employee Stock
         Purchase Plan and 2003 Foreign Subsidiary Employee Stock Purchase Plan
         (collectively, the "Plans") (not to exceed the shares available for
         issuance of grant under such plans as set forth in the Prospectus),
         (ii) the issuance of shares of Common Stock upon exercise of options to
         purchase shares of Common Stock issued in the ordinary course of
         business and pursuant to the Plans and (iii) the issuance of shares of
                                                                              13
         Common Stock upon exercise of outstanding warrants as described in the
         Prospectus. The Company will cause all of its officers, directors and
         security holders (other than those security holders listed on Schedule
         B hereto) to furnish to the Representatives, prior to the First Closing
         Date, a letter, substantially in the form of Exhibit I hereto, pursuant
         to which each such person shall agree not to directly or indirectly
         offer, sell, assign, transfer, pledge, contract to sell, or otherwise
         dispose of any shares of Common Stock or securities convertible into or
         exercisable or exchangeable for Common Stock for a period of 180 days
         from the date of the Prospectus, without the prior written consent of
         ▇▇ ▇▇▇▇▇.
         (i) The Company will supply the Representatives with copies of all
         correspondence to and from, and all documents issued to and by, the
         Commission in connection with the registration of the Stock under the
         Securities Act.
         (j) Prior to each of the Closing Dates the Company will furnish to the
         Representatives, as soon as they have been prepared, copies of any
         unaudited interim consolidated financial statements of the Company for
         any periods subsequent to the periods covered by the financial
         statements appearing in the Registration Statement and the Prospectus.
         (k) Prior to each of the Closing Dates, the Company will not issue any
         press release or other communication directly or indirectly or hold any
         press conference with respect to the Company, its condition, financial
         or otherwise, or earnings, business affairs or business prospects
         (except for routine oral marketing communications in the ordinary
         course of business and consistent with the past practices of the
         Company and of which the Representatives are notified), without the
         prior written consent of the Representatives, unless in the judgment of
         the Company and its counsel, and after notification to the
         Representatives, such press release or communication is required by
         law.
         (l) In connection with the offering of the Stock, until ▇▇ ▇▇▇▇▇ shall
         have notified the Company of the completion of the resale of the Stock,
         the Company will not, and will cause its affiliated purchasers (as
         defined in Regulation M under the Exchange Act) not to, either alone or
         with one or more other persons, bid for or purchase, for any account in
         which it or any of its affiliated purchasers has a beneficial interest,
         any Stock, or attempt to induce any person to purchase any Stock; and
         not to, and to cause its affiliated purchasers not to, make bids or
         purchase for the purpose of creating actual, or apparent, active
         trading in or of raising the price of the Stock.
         (m) The Company will not take any action prior to the Option Closing
         Date which would require the Prospectus to be amended or supplemented
         pursuant to Section 4(I)(b).
         (n) The Company will apply the net proceeds from the sale of the Stock
         as set forth in the Prospectus under the heading "Use of Proceeds".
         (o) In connection with the Directed Share Program, the Company will
         ensure that the Directed Shares will be restricted to the extent
         required by the NASD or the NASD rules from sale, transfer, assignment,
         pledge or hypothecation for a period of three (3) months following the
         date of the effectiveness of the Registration Statement. The Designated
         Underwriter will notify the Company as to which Participants will need
         to be so restricted. The Company will direct the transfer agent to
         place stop transfer restrictions upon such securities for such period
         of time.
         (p) The Company will, or will cause the Selling Stockholders to, pay
         all fees and disbursements of counsel incurred by the Underwriters in
         connection with the Directed Share
                                                                              14
         Program and stamp duties, similar taxes or duties or other taxes, if
         any, incurred by the Underwriters in connection with the Directed Share
         Program.
         (q) The Company will comply with all applicable securities and other
         applicable securities and other laws, rules and regulations in each
         foreign jurisdiction in which the Directed Shares are offered in
         connection with the Directed Share Program.
(II) FURTHER AGREEMENTS OF THE SELLING STOCKHOLDERS. Each Selling Stockholder,
severally and not jointly, agrees with the several Underwriters that:
         (a) The shares of Stock represented by the certificates held in custody
         under the Custody Agreement are for the benefit of and coupled with and
         subject to the interests of the Underwriters and the other Selling
         Stockholders, and that the arrangement for such custody and the
         appointment of the Attorney-in-Fact are irrevocable; that the
         obligations of such Selling Stockholder hereunder shall not be
         terminated by operation of law, whether by the death or incapacity,
         liquidation or distribution of such Selling Stockholder, or any other
         event, that if such Selling Stockholder should die or become
         incapacitated or is liquidated or dissolved or any other event occurs,
         before the delivery of the Stock hereunder, certificates for the Stock
         to be sold by such Selling Stockholder shall be delivered on behalf of
         such Selling Stockholder in accordance with the terms and conditions of
         this Agreement and the Custody Agreement, and action taken by the
         Attorney-in-Fact or any of them under the Power of Attorney shall be as
         valid as if such death, incapacity, liquidation or dissolution or other
         event had not occurred, whether or not the Custodian, the
         Attorney-in-Fact or any of them shall have notice of such death,
         incapacity, liquidation or dissolution or other event.
         (b) Such Selling Stockholder will deliver to ▇▇ ▇▇▇▇▇ on or prior to
         the first Option Closing Date a properly completed and executed United
         States Treasury Department Form W-8 (if the Selling Stockholder is a
         non-United States person) or Form W-9 (if the Selling Stockholder is a
         United States person) or such other applicable form or statement
         specified by Treasury Department regulations in lieu thereof.
         (c) Such Selling Stockholder will not take, directly or indirectly, any
         action designed to or that might reasonably be expected to cause or
         result in the stabilization or manipulation of the price of any
         security of the Company or facilitate the sale or resale of the any
         shares of Stock.
5. PAYMENT OF EXPENSES. The Company agrees with the Underwriter to pay: (a) the
costs incident to the authorization, issuance, sale, preparation and delivery of
the Stock and any taxes payable in that connection; (b) the costs incident to
the Registration of the Stock under the Securities Act; (c) the costs incident
to the preparation, printing and distribution of the Registration Statement,
Preliminary Prospectus, Prospectus any amendments and exhibits thereto the costs
of printing, reproducing and distributing the Power of Attorney, the Custody
Agreement, the "Agreement Among Underwriters" between the Representatives and
the Underwriters, the Master Selected Dealers' Agreement, the Underwriters'
Questionnaire and this Agreement by mail, telex or other means of
communications; (d) the fees and expenses (including related fees and expenses
of counsel for the Underwriters) incurred in connection with filings made with
the National Association of Securities Dealers; (e) any applicable listing or
other fees; (f) the fees and expenses of qualifying the Stock under the
securities laws of the several jurisdictions as provided in Section 4(I)(f) and
of preparing, printing and distributing Blue Sky Memoranda and Legal Investment
Surveys (including related fees and expenses of counsel to the Underwriters);
(g) all fees and expenses of the registrar and transfer agent of the Stock; and
(h) all other costs and expenses incident to the performance of the obligations
of the Company under this Agreement (including, without limitation, the fees and
expenses of the Company's counsel and the Company's independent accountants);
provided that, except as otherwise expressly provided in this Section 5 and in
                                                                              15
Section 9, the Underwriters shall pay their own costs and expenses, including
the fees and expenses of their counsel, any transfer taxes on the Stock which
they may sell and the expenses of advertising any offering of the Stock made by
the Underwriters.
Each Selling Stockholder will pay all fees and expenses incident to the
performance of such Selling Stockholder's obligations under this Agreement which
are not otherwise specifically provided for herein, including but not limited to
any fees and expenses of counsel for such Selling Stockholder, such Selling
Stockholder's pro rata share of fees and expenses of the Attorney-in-Fact and
the Custodian and all expenses and taxes incident to the sale and delivery of
the Stock to be sold by such Selling Stockholder to the Underwriters hereunder.
6. CONDITIONS OF UNDERWRITERS' OBLIGATIONS. The respective obligations of the
several Underwriters hereunder are subject to the accuracy, when made and on
each of the Closing Dates, of the respective representations and warranties of
the Company and the Selling Stockholders contained herein, to the accuracy of
the respective statements of the Company and the Selling Stockholders made in
any certificates pursuant to the provisions hereof, to the performance by the
Company and the Selling Stockholders of their respective obligations hereunder,
and to each of the following additional terms and conditions:
         (a) No stop order suspending the effectiveness of either of the
         Registration Statements shall have been issued and no proceedings for
         that purpose shall have been initiated or threatened by the Commission,
         and any request for additional information on the part of the
         Commission (to be included in the Registration Statements or the
         Prospectus or otherwise) shall have been complied with to the
         reasonable satisfaction of the Representatives. The Rule 462(b)
         Registration Statement, if any, and the Prospectus shall have been
         timely filed with the Commission in accordance with Section 4(I)(a).
         (b) None of the Underwriters shall have discovered on or prior to the
         Closing Date that the Registration Statements or the Prospectus or any
         amendment or supplement thereto contains an untrue statement of a fact
         which, in the reasonable opinion of counsel for the Underwriters, is
         material or omits to state any fact which, in the reasonable opinion of
         such counsel, is material and is required to be stated therein or is
         necessary to make the statements therein not misleading.
         (c) All corporate proceedings and other legal matters incident to the
         authorization, form and validity of each of this Agreement, the Custody
         Agreements, the Powers of Attorney, the Stock, the Registration
         Statements and the Prospectus and all other legal matters relating to
         this Agreement and the transactions contemplated hereby shall be
         reasonably satisfactory in all material respects to counsel for the
         Underwriters, and the Company and the Selling Stockholders shall have
         furnished to such counsel all documents and information that they may
         reasonably request to enable them to pass upon such matters.
         (d) ▇▇▇▇▇▇ ▇▇▇▇▇▇ White & ▇▇▇▇▇▇▇▇▇ LLP shall have furnished to the
         Representatives such counsel's written opinion, as counsel to the
         Company, addressed to the Underwriters and dated the Closing Date, in
         form and substance reasonably satisfactory to the Representatives, to
         the effect that:
                  (i)      The Company and each of DTS Consumer Products, Inc.,
                           a Delaware corporation, DTS Entertainment, LLC, a
                           Delaware limited liability company, and Digital
                           Theater Systems (UK), a United Kingdom corporation
                           (collectively, the "Major Subsidiaries") have been
                           duly organized and are validly existing in good
                           standing under the laws of their respective
                           jurisdictions of incorporation, are duly qualified to
                           do business and are in good standing as foreign
                           entities in each
                                                                              16
                           jurisdiction in which their respective ownership or
                           lease of property or the conduct of their respective
                           businesses requires such qualification, and have all
                           power and authority necessary to own or hold their
                           respective properties and to conduct their businesses
                           as described in the Prospectus, except where the
                           failure to so qualify or have such power or authority
                           would not have, singularly or in the aggregate, a
                           Material Adverse Effect.
                  (ii)     The Company has an authorized capitalization as set
                           forth in the Prospectus, and all of the issued shares
                           of capital stock of the Company have been duly
                           authorized and validly issued, are non-assessable
                           and, to our knowledge, fully paid. Such shares
                           conform to the description thereof contained under
                           the heading "Description of Securities" in the
                           Prospectus. The Firm Stock being delivered on the
                           Closing Date has been duly authorized and, when
                           issued and delivered to and paid for by the
                           Underwriters in accordance with this Agreement, will
                           be validly issued, fully paid and non-assessable and
                           will conform to the description thereof contained
                           under the heading "Description of Securities" in the
                           Prospectus.
                  (iii)    All the outstanding shares of capital stock of each
                           Major Subsidiary have been duly authorized and
                           validly issued, nonassessable and, to our knowledge,
                           fully paid and, except to the extent set forth in the
                           Prospectus, are owned by the Company directly or
                           indirectly through one or more wholly-owned
                           subsidiaries, free and clear of any claim, lien,
                           encumbrance, security interest, restriction upon
                           voting or transfer or any other claim of any third
                           party.
                  (iv)     There are no preemptive or other rights to subscribe
                           for or to purchase, nor any restriction upon the
                           voting or transfer of, any shares of (A) the Firm
                           Stock or (B) any and all Optional Stock sold by the
                           Company, pursuant to the Company's charter or by-laws
                           or any agreement or other instrument known to such
                           counsel, except for such rights and/or restrictions
                           that have been waived.
                  (v)      This Agreement has been duly authorized, executed and
                           delivered by the Company.
                  (vi)     The execution, delivery and performance of this
                           Agreement and the consummation of the transactions
                           contemplated hereby will not (i) conflict with or
                           result in a breach or violation of any of the terms
                           or provisions of, or constitute a default under any
                           indenture, mortgage, deed of trust, loan agreement or
                           other agreement which has been filed as an exhibit to
                           the Registration Statements, (ii) result in any
                           violation of the Charter or by-laws of the Company or
                           of any Major Subsidiary or (iii) violate any statute
                           or any order, rule or regulation, known by such
                           counsel, of any court or governmental agency or body
                           or court having jurisdiction over the Company or any
                           Major Subsidiary or any of their properties or
                           assets.
                  (vii)    Except for the registration of the Stock under the
                           Securities Act and such consents, approvals,
                           authorizations, registrations or qualifications as
                           may be required under the Exchange Act and applicable
                           state securities or blue sky laws in connection with
                           the purchase and distribution of the Stock by the
                           Underwriters (except that we express no opinion as to
                           any necessary qualification under state securities or
                           blue sky laws of the various jurisdictions in which
                           the Stock is being offered by the Underwriters), no
                           consent, approval, authorization or order of, or
                           filing or registration with, any such court or
                           governmental or regulatory agency
                                                                              17
                           or body is required for the execution, delivery and
                           performance of this Agreement by the Company and the
                           consummation of the transactions contemplated hereby.
                  (viii)   The statements in (A) the Prospectus under the
                           headings "Certain Relationships and Related
                           Transactions", "Description of Securities", "Shares
                           Eligible for Future Sale", "Material United States
                           Federal Income Tax Considerations for Non-U.S.
                           Holders of Our Common Stock" and "Risk Factors -
                           Anti-Takeover Provisions Under Our Charter Documents
                           and Delaware Law Could Delay or Prevent a Change of
                           Control and Could Also Limit the Market Price of Our
                           Stock" and in (B) the Registration Statement, Part
                           II, Items 14 and 15, to the extent that such
                           statements constitute summaries of matters of law or
                           regulation or legal conclusions, have been reviewed
                           by such counsel and fairly summarize the matters
                           described therein in all material respects.
                  (ix)     To such counsel's knowledge, neither the Company nor
                           any Major Subsidiary is (i) in violation of its
                           charter or by-laws, (ii) in default, and no event has
                           occurred, which, with notice or lapse of time or
                           both, would constitute a default, in the due
                           performance or observance of any term, covenant or
                           condition contained in any agreement or instrument to
                           which it is a party or by which it is bound or to
                           which any of its properties or assets is subject or
                           (iii) in violation of any law, ordinance,
                           governmental rule, regulation or court decree to
                           which it or its property or assets may be subject or
                           has failed to obtain any license, permit,
                           certificate, franchise or other governmental
                           authorization or permit necessary to the ownership of
                           its property or to the conduct of its business
                           except, in the case of clauses (ii) and /or (iii),
                           for those defaults, violations or failures which,
                           individually or in the aggregate, would not have a
                           Material Adverse Effect.
                  (x)      To counsel's knowledge, there are no contracts or
                           other documents of a character required to be
                           described in the Registration Statement or Prospectus
                           or to be filed as exhibits to the Registration
                           Statement which are not described or filed as
                           required.
                  (xi)     To such counsel's knowledge, there are no statutes or
                           legal or governmental proceedings pending to which
                           the Company or any Major Subsidiary is a party or of
                           which any property or asset of the Company or any
                           Major Subsidiary is the subject which are of a
                           character required to be described not described in
                           the Prospectus which are not described as required.
                  (xii)    The Registration Statement was declared effective
                           under the Securities Act as of the date and time
                           specified in such opinion, the Rule 462(b)
                           Registration Statement, if any, was filed with the
                           Commission on the date specified therein, the
                           Prospectus was filed with the Commission pursuant to
                           the subparagraph of Rule 424(b) of the Rules and
                           Regulations specified in such opinion on the date
                           specified therein and no stop order suspending the
                           effectiveness of the Registration Statement has been
                           issued and, to the knowledge of such counsel, no
                           proceeding for that purpose is pending or threatened
                           by the Commission.
                  (xiii)   The Registration Statements, as of their respective
                           effective dates, and the Prospectus, as of its date,
                           and any further amendments or supplements thereto, as
                           of their respective dates, made by the Company prior
                           to the Closing Date (other than the financial
                           statements and schedules and other financial and
                           statistical data
                                                                              18
                           contained or incorporated by reference therein, as to
                           which such counsel need express no opinion) complied
                           as to form in all material respects with the
                           requirements of the Securities Act and the Rules and
                           Regulations.
                  (xiv)    To such counsel's knowledge, except as described in
                           the Prospectus, no person or entity has the right to
                           require the Company to register any shares of Common
                           Stock or other securities of the Company because of
                           the filing or effectiveness of the Registration
                           Statements or otherwise, except for persons and
                           entities who have expressly waived such right or who
                           have been given proper notice and have failed to
                           exercise such right within the time or times required
                           under the terms and conditions of such right.
                  (xv)     Neither the Company nor any of its subsidiaries is an
                           "investment company" within the meaning of the
                           Investment Company Act and the rules and regulations
                           of the Commission thereunder (provided that such
                           opinion may rely upon an appropriate officer's
                           certificate certifying the facts necessary for
                           counsel to render such opinion).
                  Such counsel shall also have furnished to the Representatives
         a written statement, addressed to the Underwriters and dated the
         Closing Date, in form and substance satisfactory to the
         Representatives, to the effect that (x) such counsel has acted as
         counsel to the Company in connection with the preparation of the
         Registration Statements (y) based on such counsel's examination of the
         Registration Statements and such counsel's investigations made in
         connection with the preparation of the Registration Statements and
         "conferences with certain officers and employees of and with auditors
         for and counsel to the Company", such counsel has no reason to believe
         that the Registration Statements, as of the respective effective dates,
         contained any untrue statement of a material fact or omitted to state
         any material fact required to be stated therein or necessary in order
         to make the statements therein not misleading, or that the Prospectus
         contains any untrue statement of a material fact or omits to state any
         material fact required to be stated therein or necessary in order to
         make the statements therein, in light of the circumstances under which
         they were made, not misleading; it being understood that such counsel
         need express no opinion as to the financial statements or other
         financial data contained in the Registration Statement or the
         Prospectus.
                  The foregoing opinion and statement may be qualified by a
         statement to the effect that such counsel has not independently
         verified the accuracy, completeness or fairness of the statements
         contained in the Registration Statement or the Prospectus and takes no
         responsibility therefor except to the extent set forth in the opinion
         described in clauses (viii) and (ix) above.
                  (e) O'Melveny & ▇▇▇▇▇ LLP shall have furnished to the
         Representatives such counsel's written opinion, as counsel to the
         Selling Stockholders, addressed to the Underwriters and dated the
         Closing Date, in form and substance reasonably satisfactory to the
         Representatives, to the effect that:
                           (i)      Each Selling Stockholder has full right,
                                    power and authority to enter into this
                                    Agreement, the Power of Attorney and the
                                    Custody Agreement; the execution, delivery
                                    and performance of this Agreement, the Power
                                    of Attorney and the Custody Agreement by
                                    each Selling Stockholder and the
                                    consummation by each Selling Stockholder of
                                    the transactions contemplated hereby and
                                    thereby will not conflict with or result in
                                    a breach or violation of any of the terms or
                                    provisions of, or constitute a default
                                    under, any statute, any indenture, mortgage,
                                    deed of trust, loan
                                                                              19
                                    agreement or other agreement or instrument
                                    known to such counsel to which any Selling
                                    Stockholder is a party or by which any
                                    Selling Stockholder is bound or to which any
                                    of the property or assets of any Selling
                                    Stockholder is subject, nor will such
                                    actions result in any violation of any
                                    statute or any order, rule or regulation
                                    known to such counsel of any court or
                                    governmental agency or body having
                                    jurisdiction over any Selling Stockholder or
                                    the property or assets of any Selling
                                    Stockholder; and, except for the
                                    registration of the Optional Stock under the
                                    Securities Act and such consents, approvals,
                                    authorizations, registrations or
                                    qualifications as may be required under the
                                    Exchange Act and applicable state securities
                                    laws in connection with the purchase and
                                    distribution of the Optional Stock by the
                                    Underwriters, no consent, approval,
                                    authorization or order of, or filing or
                                    registration with, any such court or
                                    governmental agency or body is required for
                                    the execution, delivery and performance of
                                    this Agreement, the Power of Attorney or the
                                    Custody Agreement by any Selling Stockholder
                                    and the consummation by any Selling
                                    Stockholder of the transactions contemplated
                                    hereby and thereby.
                           (ii)     This Agreement has been duly executed and
                                    delivered by or on behalf of each Selling
                                    Stockholder.
                           (iii)    A Power-of-Attorney and a Custody Agreement
                                    have been duly executed and delivered by or
                                    on behalf of each Selling Stockholder and
                                    constitute valid and binding agreements of
                                    each Selling Stockholder.
                           (iv)     Upon payment for, and delivery of, the
                                    shares of Optional Stock to be sold by each
                                    Selling Stockholder under this Agreement in
                                    accordance with the terms hereof, the
                                    Underwriters will acquire good and valid
                                    title to such shares, free and clear of all
                                    liens, encumbrances, equities or claims.
                  (f) The Representatives shall have received from Skadden,
         Arps, Slate, ▇▇▇▇▇▇▇ & ▇▇▇▇ LLP, counsel for the Underwriters, such
         opinion or opinions, dated the Closing Date, with respect to such
         matters as the Underwriters may reasonably require, and the Company
         shall have furnished to such counsel such documents as they reasonably
         request for the purpose of enabling them to pass upon such matters.
                  (g) At the time of the execution of this Agreement, the
         Representatives shall have received from PricewaterhouseCoopers LLP a
         letter, addressed to the Underwriters and dated such date, in form and
         substance satisfactory to the Representatives (i) confirming that they
         are independent certified public accountants with respect to the
         Company and its subsidiaries within the meaning of the Securities Act
         and the Rules and Regulations and (ii) stating the conclusions and
         findings of such firm with respect to the financial statements and
         certain financial information contained in the Prospectus.
                  (h) On the Closing Date, the Representatives shall have
         received a letter (the "bring-down letter") from PricewaterhouseCoopers
         LLP addressed to the Underwriters and dated the Closing Date
         confirming, as of the date of the bring-down letter (or, with respect
         to matters involving changes or developments since the respective dates
         as of which specified financial information is given in the Prospectus
         as of a date not more than three business days prior to the date of the
         bring-down letter), the conclusions and findings of such firm with
         respect to the
                                                                              20
         financial information and other matters covered by its letter delivered
         to the Representatives concurrently with the execution of this
         Agreement pursuant to Section 6(g).
                  (i) The Company shall have furnished to the Representatives a
         certificate, dated the Closing Date, of its Chief Executive Officer and
         President and its Chief Financial Officer stating that (i) such
         officers have carefully examined the Registration Statements and the
         Prospectus and, in their opinion, the Registration Statements as of
         their respective effective dates and the Prospectus, as of each such
         effective date, did not include any untrue statement of a material fact
         and did not omit to state a material fact required to be stated therein
         or necessary to make the statements therein, in light of the
         circumstances in which they were made, not misleading, (ii) since the
         effective date of the Initial Registration Statement no event has
         occurred which should have been set forth in a supplement or amendment
         to the Registration Statements or the Prospectus, (iii) to the best of
         their knowledge after reasonable investigation, as of the Closing Date,
         the representations and warranties of the Company in this Agreement are
         true and correct and the Company has complied with all agreements and
         satisfied all conditions on its part to be performed or satisfied
         hereunder at or prior to the Closing Date, and (iv) subsequent to the
         date of the most recent financial statements in the Prospectus, there
         has been no change in the financial position or results of operation of
         the Company and its subsidiaries, or any change, or any development
         including a prospective change, in each of the instances in this clause
         (iv), that might have a Material Adverse Effect on the condition
         (financial or otherwise), results of operations, business or prospects
         of the Company and its subsidiaries taken as a whole, except as set
         forth in the Prospectus.
                  (j) Each Selling Stockholder shall have furnished to the
         Representatives on each applicable Option Closing Date a certificate,
         dated the such date, signed by, or on behalf of, the Selling
         Stockholder stating that the representations, warranties and agreements
         of the Selling Stockholder contained herein are true and correct as of
         such Option Closing Date and that the Selling Stockholder has complied
         with all agreements contained herein to be performed by the Selling
         Stockholder at or prior to the Closing Date.
                  (k) (i) Neither the Company nor any of its subsidiaries shall
         have sustained since the date of the latest audited financial
         statements included in the Prospectus any loss or interference with its
         business from fire, explosion, flood or other calamity, whether or not
         covered by insurance, or from any labor dispute or court or
         governmental action, order or decree, otherwise than as set forth or
         contemplated in the Prospectus (ii) since such date there shall not
         have been any change in the capital stock or long-term debt of the
         Company or any of its subsidiaries or any change, or any development
         involving a prospective change, in or affecting the business, general
         affairs, management, financial position, stockholders' equity or
         results of operations of the Company and its subsidiaries, otherwise
         than as set forth or contemplated in the Prospectus, the effect of
         which, in any such case described in clause (i) or (ii), is, in the
         judgment of the Representatives, so material and adverse as to make it
         impracticable or inadvisable to proceed with the sale or delivery of
         the Stock on the terms and in the manner contemplated in the
         Prospectus.
                  (l) No action shall have been taken and no statute, rule,
         regulation or order shall have been enacted, adopted or issued by any
         governmental agency or body which would, as of the Closing Date,
         prevent the issuance or sale of the Stock; and no injunction,
         restraining order or order of any other nature by any federal or state
         court of competent jurisdiction shall have been issued as of the
         Closing Date which would prevent the issuance or sale of the Stock.
                  (m) Subsequent to the execution and delivery of this Agreement
         (i) no downgrading shall have occurred in the Company's corporate
         credit rating or the rating accorded the
                                                                              21
         Company's debt securities by any "nationally recognized statistical
         rating organization," as that term is defined by the Commission for
         purposes of Rule 436(g)(2) of the Rules and Regulations and (ii) no
         such organization shall have publicly announced that it has under
         surveillance or review (other than an announcement with positive
         implications of a possible upgrading), its rating of any of the
         Company's debt securities.
                  (n) Subsequent to the execution and delivery of this Agreement
         there shall not have occurred any of the following: (i) trading in
         securities generally on the New York Stock Exchange or the American
         Stock Exchange or the Toronto Stock Exchange or in the over-the-counter
         market, or trading in any securities of the Company on any exchange or
         in the over-the-counter market, shall have been suspended or minimum or
         maximum prices or maximum range for prices shall have been established
         on any such exchange or such market by the Commission, by such exchange
         or by any other regulatory body or governmental authority having
         jurisdiction; (ii) a banking moratorium shall have been declared by
         United States Federal or state authorities, or Canadian federal or
         provincial authorities, or a material disruption has occurred in
         commercial banking or securities settlement or clearance services in
         the United States or Canada; (iii) (A) a declaration of a material
         national emergency or a declaration of war by the United States, or a
         material outbreak or escalation of hostilities between the United
         States and any foreign power, (B) an outbreak or material escalation of
         any other insurrection or armed conflict, or act of terrorism involving
         the United States, or any other national or international crisis,
         calamity or emergency, (C) a "Red" terrorist threat condition,
         announced by the Homeland Security Advisory System or similar agency in
         the United States, (D) any material discharge, detonation, explosion or
         use against any person or entity or nation anywhere in the world of any
         weapon of mass destruction has occurred or (iv) there shall have
         occurred such a material adverse change in general economic, political
         or financial conditions (or the effect of international conditions on
         the financial markets in the United States shall be such) as to make
         it, in the sole judgment of the Representatives, impracticable or
         inadvisable to proceed with the sale or delivery of the Stock on the
         terms and in the manner contemplated in the Prospectus.
                  (o) The Nasdaq National Market System shall have approved the
         Stock for inclusion, subject only to official notice of issuance and
         evidence of satisfactory distribution.
                  (p) ▇▇ ▇▇▇▇▇ shall have received the written agreements,
         substantially in the form of Exhibit I hereto, of all of the officers,
         directors and security holders of the Company (other than those
         security holders listed on Schedule C hereto).
         All opinions, letters, evidence and certificates mentioned above or
elsewhere in this Agreement shall be deemed to be in compliance with the
provisions hereof only if they are in form and substance reasonably satisfactory
to counsel for the Underwriters.
7.       INDEMNIFICATION AND CONTRIBUTION.
         (a) The Company shall indemnify and hold harmless each Underwriter, its
         officers, employees, representatives and agents and each person, if
         any, who controls any Underwriter within the meaning of the Securities
         Act (collectively the "Underwriter Indemnified Parties" and , each an
         "Underwriter Indemnified Party") against any loss, claim, damage or
         liability, joint or several, or any action in respect thereof, to which
         that Underwriter Indemnified Party may become subject, under the
         Securities Act or otherwise, insofar as such loss, claim, damage,
         liability or action arises out of or is based upon (i) any untrue
         statement or alleged untrue statement of a material fact contained in
         the Preliminary Prospectus, either of the Registration Statements or
         the Prospectus or in any amendment or supplement thereto or (ii) the
         omission or alleged omission to state in any Preliminary Prospectus,
         either of the Registration Statements or
                                                                              22
         the Prospectus or in any amendment or supplement thereto a material
         fact required to be stated therein or necessary to make the statements
         therein not misleading and shall reimburse each Underwriter Indemnified
         Party reasonably promptly upon demand for any legal or other expenses
         reasonably incurred by that Underwriter Indemnified Party in connection
         with investigating or preparing to defend or defending against or
         appearing as a third party witness in connection with any such loss,
         claim, damage, liability or action as such expenses are incurred;
         provided, however, that the Company shall not be liable in any such
         case to the extent that any such loss, claim, damage, liability or
         action arises out of or is based upon (i) an untrue statement or
         alleged untrue statement in or an omission or alleged omission from the
         Preliminary Prospectus, either of the Registration Statements or the
         Prospectus or any amendment or supplement thereto in reliance upon and
         in conformity with written information furnished to the Company through
         the Representatives by or on behalf of any Underwriter specifically for
         use therein, which information the parties hereto agree is limited to
         the Underwriters' Information (as defined in Section 16); provided,
         further, however, that the foregoing indemnification agreement with
         respect to the Preliminary Prospectus shall not inure to the benefit of
         any Underwriter from whom the person asserting any such loss, claim,
         damage or liability purchases Securities, or any officers, employees,
         representatives, agents or controlling persons of such Underwriter, if
         (i) a copy of the Prospectus (as then amended or supplemented) was
         required by law to be delivered to such person at or prior to the
         written confirmation of the sale of Securities to such person, (ii) a
         copy of the Prospectus (as then amended or supplemented) was not sent
         or given to such person by or on behalf of such Underwriter and such
         failure was not due to non-compliance by the Company with Section
         4(I)(d), and (iii) the Prospectus (as so amended or supplemented) would
         have cured the defect giving rise to such loss, claim, damage or
         liability.
         The Company shall indemnify and hold harmless the Designated
         Underwriter and its officers, employees, representatives and agents and
         each person, if any, who controls any Underwriter within the meaning of
         the Securities Act (collectively the "Designated Underwriter
         Indemnified Parties," and each a "Designated Underwriter Indemnified
         Party") against any loss, claim, damage or liability, joint or several,
         or any action in respect thereof, to which that Designated Underwriter
         Indemnified Party may become subject, under the Securities Act or
         otherwise, insofar as such loss, claim, damage, liability or action
         arises out of or is based upon (i) any untrue statement or alleged
         untrue statement of a material fact contained in any material prepared
         by or with the consent of the Company for distribution to Participants
         in connection with the Directed Share Program, (ii) the omission or
         alleged omission to state in any material prepared by or with the
         consent of the Company for distribution to Participants in connection
         with the Directed Share Program of a material fact required to be
         stated therein or necessary to make the statements therein, in the
         light of the circumstances under which they were made, not misleading,
         (iii) the failure of any Participant to pay for and accept delivery of
         Directed Shares that the Participant agreed to purchase; or (iv) any
         other loss, claim, damage or liability, or any action in respect of,
         related to, arising out of, or in connection with the Directed Share
         Program, other than such losses, claims, damages or liabilities (or
         expenses relating thereto) that are finally judicially determined to
         have resulted from the willful misconduct or gross negligence of the
         Designated Underwriter.
         This indemnity agreement is not exclusive and will be in addition to
         any liability which the Company might otherwise have and shall not
         limit any rights or remedies which may otherwise be available at law or
         in equity to each Underwriter Indemnified Party.
         (b) Each Selling Stockholder, severally and not jointly, shall
         indemnify and hold harmless each Underwriter Indemnified Party, against
         any loss, claim, damage or liability or any action in respect thereof,
         to which that Underwriter Indemnified may become subject, under the
         Securities Act or otherwise, insofar as such loss, claim, damage,
         liability or action arises out of or is based
                                                                              23
         upon (i) any untrue statement or alleged untrue statement of a material
         fact contained in the Preliminary Prospectus, either of the
         Registration Statements or the Prospectus or in any amendment or
         supplement thereto or (ii) the omission or alleged omission to state in
         any Preliminary Prospectus, either of the Registration Statements or
         the Prospectus or in any amendment or supplement thereto a material
         fact required to be stated therein or necessary to make the statements
         therein not misleading -- but in case of each (i) and (ii), only to the
         extent that the untrue statement or alleged untrue statement or
         omission or alleged omission was made in reliance upon and in
         conformity with written information furnished to the Company by or on
         behalf of such Selling Stockholder specifically for inclusion therein,
         and shall reimburse each Underwriter Indemnified Party reasonably
         promptly upon demand for any legal or other expenses reasonably
         incurred by that Underwriter Indemnified Party in connection with
         investigating or preparing to defend or defending against or appearing
         as a third party witness in connection with any such loss, claim,
         damage, liability or action as such expenses are incurred; provided,
         however, that the foregoing indemnification agreement with respect to
         the Preliminary Prospectus shall not inure to the benefit of any
         Underwriter from whom the person asserting any such loss, claim, damage
         or liability purchased Securities, or any officers, employees,
         representatives, agents or controlling persons of such Underwriter, (A)
         if (i) a copy of the Prospectus (as then amended or supplemented) was
         required by law to be delivered to such person at or prior to the
         written confirmation of the sale of Securities to such person, (ii) a
         copy of the Prospectus (as then amended or supplemented) was not sent
         or given to such person by or on behalf of such Underwriter and such
         failure was not due to non-compliance by the Company with Section
         4(I)(d), and (iii) the Prospectus (as so amended or supplemented) would
         have cured the defect giving rise to such loss, claim, damage or
         liability or (B) to the extent that any such loss, claim, damage or
         liability arises out of or is based upon an untrue statement or alleged
         untrue statement or omission or alleged omission made in the
         Preliminary Prospectus, either of the Registration Statements or the
         Prospectus or any amendment or supplement in reliance upon and in
         conformity with the Underwriters' Information (as defined in Section
         16); and provided further, however, that the liability of any Selling
         Stockholder under this subsection (b) shall not exceed the net proceeds
         received by such Selling Stockholder in connection with the sale of
         such Selling Stockholder's Optional Shares. This indemnity agreement is
         not exclusive and will be in addition to any liability which the
         Selling Stockholders might otherwise have and shall not limit any
         rights or remedies which may otherwise be available at law or in equity
         to each Underwriter Indemnified Party.
         (c) Each Underwriter, severally and not jointly, shall indemnify and
         hold harmless the Company its officers, employees, representatives and
         agents, each of its directors (including any person who with his
         consent is named in the Registration Statements as expected to become a
         director of the Company shortly after the First Closing) and each
         person, if any, who controls the Company within the meaning of the
         Securities Act (collectively the "Company Indemnified Parties" and each
         a "Company Indemnified Party") and the Selling Stockholders, their
         respective officers, employees, representatives and agents and each
         person, if any, who controls the Selling Stockholders within the
         meaning of the Securities Act (collectively, the "Selling Stockholder
         Indemnified Parties" and each a "Selling Stockholder Indemnified
         Party," against any loss, claim, damage or liability, joint or several,
         or any action in respect thereof, to which the Company Indemnified
         Parties or the Selling Stockholder Parties may become subject, under
         the Securities Act or otherwise, insofar as such loss, claim, damage,
         liability or action arises out of or is based upon (i) any untrue
         statement or alleged untrue statement of a material fact contained in
         the Preliminary Prospectus, either of the Registration Statements or
         the Prospectus or in any amendment or supplement thereto or (ii) the
         omission or alleged omission to state therein a material fact required
         to be stated therein or necessary to make the statements therein not
         misleading, but in each case only to the extent that the untrue
         statement or alleged untrue statement or omission or alleged omission
         was made in reliance upon and in conformity with
                                                                              24
         written information furnished to the Company through the
         Representatives by or on behalf of that Underwriter specifically for
         use therein, and shall reimburse the Company Indemnified Parties and
         the Selling Stockholder Indemnified Parties for any legal or other
         expenses reasonably incurred by such parties in connection with
         investigating or preparing to defend or defending against or appearing
         as third party witness in connection with any such loss, claim, damage,
         liability or action as such expenses are incurred; provided that the
         parties hereto hereby agree that such written information provided by
         the Underwriters consists solely of the Underwriters' Information (as
         defined in Section 16). This indemnity agreement is not exclusive and
         will be in addition to any liability which the Underwriters might
         otherwise have and shall not limit any rights or remedies which may
         otherwise be available at law or in equity to the Company Indemnified
         Parties and the Selling Stockholder Indemnified Parties.
         (d) Promptly after receipt by an indemnified party under this Section 7
         of notice of any claim or the commencement of any action, the
         indemnified party shall, if a claim in respect thereof is to be made
         against the indemnifying party under this Section 7, notify the
         indemnifying party in writing of the claim or the commencement of that
         action; provided, however, that the failure to notify the indemnifying
         party shall not relieve it from any liability which it may have under
         this Section 7 except to the extent it has been materially prejudiced
         by such failure; and, provided, further, that the failure to notify the
         indemnifying party shall not relieve it from any liability which it may
         have to an indemnified party otherwise than under this Section 7. If
         any such claim or action shall be brought against an indemnified party,
         and it shall notify the indemnifying party thereof, the indemnifying
         party shall be entitled to participate therein and, to the extent that
         it wishes, jointly with any other similarly notified indemnifying
         party, to assume the defense thereof with counsel reasonably
         satisfactory to the indemnified party. After notice from the
         indemnifying party to the indemnified party of its election to assume
         the defense of such claim or action, the indemnifying party shall not
         be liable to the indemnified party under this Section 7 for any legal
         or other expenses subsequently incurred by the indemnified party in
         connection with the defense thereof other than reasonable costs of
         investigation; provided, however, that any indemnified party shall have
         the right to employ separate counsel in any such action and to
         participate in the defense thereof but the fees and expenses of such
         counsel shall be at the expense of such indemnified party unless (i)
         the employment thereof has been specifically authorized by the
         indemnifying party in writing, (ii) such indemnified party shall have
         been advised by such counsel that there may be one or more legal
         defenses available to it which are different from or additional to
         those available to the indemnifying party and in the reasonable
         judgment of such counsel it is advisable for such indemnified party to
         employ separate counsel or (iii) the indemnifying party has failed to
         assume the defense of such action and employ counsel reasonably
         satisfactory to the indemnified party, in which case, if such
         indemnified party notifies the indemnifying party in writing that it
         elects to employ separate counsel at the expense of the indemnifying
         party, the indemnifying party shall not have the right to assume the
         defense of such action on behalf of such indemnified party, it being
         understood, however, that the indemnifying party shall not, in
         connection with any one such action or separate but substantially
         similar or related actions in the same jurisdiction arising out of the
         same general allegations or circumstances, be liable for the reasonable
         fees and expenses of more than one separate firm of attorneys at any
         time for all such indemnified parties, which firm shall be designated
         in writing by ▇▇ ▇▇▇▇▇, if the indemnified parties under this Section 7
         consist of any Underwriter Indemnified Party, or by the Company if the
         indemnified parties under this Section 7 consist of any Company
         Indemnified Parties or Selling Stockholder Indemnified Parties. Each
         indemnified party, as a condition of the indemnity agreements contained
         in Sections 7(a), 7(b) and 7(c), shall use all reasonable efforts to
         cooperate with the indemnifying party in the defense of any such action
         or claim. Subject to the provisions of Section 7(f) below, no
         indemnifying party shall be liable for any settlement of any such
         action effected without its written consent (which consent shall not be
         unreasonably withheld), but if settled with its written consent or if
         there be a final
                                                                              25
         judgment for the plaintiff in any such action, the indemnifying party
         agrees to indemnify and hold harmless any indemnified party from and
         against any loss or liability by reason of such settlement or judgment.
         Notwithstanding anything contained herein to the contrary, if indemnity
         may be sought pursuant to the penultimate paragraph in Section 7(a)
         hereof in respect of such action or proceeding, then in addition to
         such separate firm for the indemnified parties, the indemnifying party
         shall be liable for the reasonable fees and expenses of not more than
         one separate firm (in addition to any local counsel) for the Designated
         Underwriter for the defense of any losses, claims, damages and
         liabilities arising out of the Directed Share Program, and all persons,
         if any, who control the Designated Underwriter within the meaning of
         either Section 15 of the Act of Section 20 of the Exchange Act.
         (e) If at any time an indemnified party shall have requested that an
         indemnifying party reimburse the indemnified party for fees and
         expenses of counsel, such indemnifying party agrees that it shall be
         liable for any settlement of the nature contemplated by this Section 7
         effected without its written consent if (i) such settlement is entered
         into more than 45 days after receipt by such indemnifying party of the
         request for reimbursement, (ii) such indemnifying party shall have
         received notice of the terms of such settlement at least 30 days prior
         to such settlement being entered into and (iii) such indemnifying party
         shall not have reimbursed such indemnified party in accordance with
         such request prior to the date of such settlement.
         (f) If the indemnification provided for in this Section 7 is
         unavailable or insufficient to hold harmless an indemnified party under
         Section 7(a), 7(b) or 7(c), then each indemnifying party shall, in lieu
         of indemnifying such indemnified party, contribute to the amount paid
         or payable by such indemnified party as a result of such loss, claim,
         damage or liability, or action in respect thereof, (i) in such
         proportion as shall be appropriate to reflect the relative benefits
         received by the Company, the Selling Stockholders and the Underwriters
         from the offering of the Stock or (ii) if the allocation provided by
         clause (i) above is not permitted by applicable law, in such proportion
         as is appropriate to reflect not only the relative benefits referred to
         in clause (i) above but also the relative fault of the Company, the
         Selling Stockholders and the Underwriters with respect to the
         statements or omissions which resulted in such loss, claim, damage or
         liability, or action in respect thereof, as well as any other relevant
         equitable considerations. The relative benefits received by the Company
         and the Selling Stockholders on the one hand and the Underwriters on
         the other with respect to such offering shall be deemed to be in the
         same proportion as the total net proceeds from the offering of the
         Stock purchased under this Agreement (before deducting expenses)
         received by the Company and the Selling Stockholders bear to the total
         underwriting discounts and commissions received by the Underwriters
         with respect to the Stock purchased under this Agreement, in each case
         as set forth in the table on the cover page of the Prospectus. The
         relative fault shall be determined by reference to, among other things,
         whether the untrue or alleged untrue statement of a material fact or
         the omission or alleged omission to state a material fact relates to
         information supplied by the Company and the Selling Stockholders on the
         one hand or the Underwriters on the other, the intent of the parties
         and their relative knowledge, access to information and opportunity to
         correct or prevent such untrue statement or omission; provided that the
         parties hereto agree that the written information furnished to the
         Company through the Representatives by or on behalf of the Underwriters
         for use in any Preliminary Prospectus, either of the Registration
         Statements or the Prospectus consists solely of the Underwriters'
         Information (as defined in Section 16). The Company, the Selling
         Stockholders and the Underwriters agree that it would not be just and
         equitable if contributions pursuant to this Section 7(f) were to be
         determined by pro rata allocation (even if the Underwriters were
         treated as one entity for such purpose) or by any other method of
         allocation which does not take into account the equitable
         considerations referred to herein. The amount paid
                                                                              26
         or payable by an indemnified party as a result of the loss, claim,
         damage or liability, or action in respect thereof, referred to above in
         this Section 7(f) shall be deemed to include, for purposes of this
         Section 7(f), any legal or other expenses reasonably incurred by such
         indemnified party in connection with investigating or defending any
         such action or claim. Notwithstanding the provisions of this Section
         7(f), no Underwriter shall be required to contribute any amount in
         excess of the amount by which the total price at which the Stock
         underwritten by it and distributed to the public were offered to the
         public less the amount of any damages which such Underwriter has
         otherwise paid or become liable to pay by reason of any untrue or
         alleged untrue statement or omission or alleged omission.
         Notwithstanding the provisions of this Section 7(f), no Selling
         Stockholder shall be required to contribute any amount in excess of the
         net proceeds received by such Selling Stockholder in connection with
         the sale of such Selling Stockholder's Optional Shares. No person
         guilty of fraudulent misrepresentation (within the meaning of Section
         11(f) of the Securities Act) shall be entitled to contribution from any
         person who was not guilty of such fraudulent misrepresentation. The
         Underwriters' obligations to contribute as provided in this Section
         7(f) are several in proportion to their respective underwriting
         obligations and not joint. Each Selling Stockholder's obligation to
         contribute as provided in this Section 7(f) is several in proportion to
         the respective number of shares of Optional Stock to be sold by such
         Selling Stockholder.
8. TERMINATION. The obligations of the Underwriters hereunder may be terminated
by ▇▇ ▇▇▇▇▇, in its absolute discretion by notice given to and received by the
Company prior to delivery of and payment for the Firm Stock if, prior to that
time, any of the events described in Sections 6(j), 6(l) or 6(m) have occurred
or if the Underwriters shall decline to purchase the Stock for any reason
permitted under this Agreement.
9. REIMBURSEMENT OF UNDERWRITERS' EXPENSES. If (a) this Agreement shall have
been terminated pursuant to Section 8 or 10, (b) the Company or any Selling
Stockholder shall fail to tender the Stock for delivery to the Underwriters for
any reason permitted under this Agreement, or (c) the Underwriters shall decline
to purchase the Stock for any reason permitted under this Agreement, the Company
and the Selling Stockholders shall reimburse the Underwriters for the fees and
expenses of their counsel and for such other out-of-pocket expenses as shall
have been reasonably incurred by them in connection with this Agreement and the
proposed purchase of the Stock, consistent with Section 5, and upon demand the
Company and the Selling Stockholders shall pay the full amount thereof to the ▇▇
▇▇▇▇▇; provided, however, that if this Agreement is terminated pursuant to
subsection (b) above, no Selling Stockholder shall be required to reimburse the
Underwriters for fees and expenses unless such Selling Stockholder failed to
tender the Optional Stock for delivery to the Underwriters for any reason
permitted under this Agreement. If this Agreement is terminated pursuant to
Section 8 or 10 by reason of the default of one or more Underwriters, neither
the Company nor any Selling Stockholder shall be obligated to reimburse any
defaulting Underwriter on account of those expenses, provided further, however,
that the foregoing shall not limit any reimbursement obligation of the Company
under this Section 9.
10. SUBSTITUTION OF UNDERWRITERS. If any Underwriter or Underwriters shall
default in its or their obligations to purchase shares of Stock hereunder and
the aggregate number of shares which such defaulting Underwriter or Underwriters
agreed but failed to purchase does not exceed ten percent (10%) of the total
number of shares of Stock underwritten, the other Underwriters shall be
obligated severally, in proportion to their respective commitments hereunder, to
purchase the shares of Stock which such defaulting Underwriter or Underwriters
agreed but failed to purchase. If any Underwriter or Underwriters shall so
default and the aggregate number of shares with respect to which such default or
defaults occur is more than ten percent (10%) of the total number of shares of
Stock and arrangements satisfactory to the Representatives and the Company for
the purchase of such shares by other persons are not made within forty-eight
(48) hours after such default, this Agreement shall terminate.
                                                                              27
         If the remaining Underwriters or substituted Underwriters are required
hereby or agree to take up all or part of the shares of Stock of a defaulting
Underwriter or Underwriters as provided in this Section 10, (i) the Company
shall have the right to postpone the applicable Closing Date for a period of not
more than five (5) full business days in order that the Company and the Selling
Stockholders may effect whatever changes may thereby be made necessary in the
Registration Statements or the Prospectus, or in any other documents or
arrangements, and the Company agrees promptly to file any amendments to the
Registration Statements or supplements to the Prospectus which may thereby be
made necessary, and (ii) the respective numbers of shares to be purchased by the
remaining Underwriters or substituted Underwriters shall be taken as the basis
of their underwriting obligation for all purposes of this Agreement. Nothing
herein contained shall relieve any defaulting Underwriter of its liability to
the Company, the Selling Stockholders or the other Underwriters for damages
occasioned by its default hereunder. Any termination of this Agreement pursuant
to this Section 10 shall be without liability on the part of any non-defaulting
Underwriter, the Selling Stockholders or the Company, except expenses to be paid
or reimbursed pursuant to Sections 5 and 9 and except the provisions of Section
7 shall not terminate and shall remain in effect.
11. SUCCESSORS; PERSONS ENTITLED TO BENEFIT OF AGREEMENT. This Agreement shall
inure to the benefit of and be binding upon the several Underwriters, the
Company and the Selling Stockholders and their respective successors. Nothing
expressed or mentioned in this Agreement is intended or shall be construed to
give any person other than the persons mentioned in the preceding sentence any
legal or equitable right, remedy or claim under or in respect of this Agreement,
or any provisions herein contained, this Agreement and all conditions and
provisions hereof being intended to be and being for the sole and exclusive
benefit of such persons and for the benefit of no other person; except that the
representations, warranties, covenants, agreements and indemnities of the
Company and the Selling Stockholders contained in this Agreement shall also be
for the benefit of the Underwriter Indemnified Parties, and the indemnities of
the several Underwriters shall also be for the benefit of the Company
Indemnified Parties and the Selling Stockholder Indemnified Parties. It is
understood that the Underwriter's responsibility to the Company is solely
contractual in nature and the Underwriters do not owe the Company, or any other
party, any fiduciary duty as a result of this Agreement. The term "successor" as
used in this Section 11 shall not include any purchaser, as such purchaser, of
any of the Stock from any of the several Underwriters.
12. SURVIVAL OF INDEMNITIES, REPRESENTATIONS, WARRANTIES, ETC. The respective
indemnities, covenants, agreements, representations, warranties and other
statements of the Company and the several Underwriters, as set forth in this
Agreement or made by them respectively, pursuant to this Agreement, shall remain
in full force and effect, regardless of any investigation made by or on behalf
of any Underwriter, the Selling Stockholders, the Company or any person
controlling any of them and shall survive delivery of and payment for the Stock.
13. NOTICES. All statements, requests, notices and agreements hereunder shall be
in writing, and:
         (a) if to the Underwriters, shall be delivered or sent by mail, telex
         or facsimile transmission to ▇▇ ▇▇▇▇▇ Securities Corporation Attention:
         Equity Capital Markets (Fax: ▇▇▇-▇▇▇-▇▇▇▇), with a copy to the same
         address, Attention: Legal Department - ▇▇▇▇▇ ▇▇▇▇▇▇▇▇ (Fax:
         ▇▇▇-▇▇▇-▇▇▇▇);
         (b) if to the Company shall be delivered or sent by mail, telex or
         facsimile transmission to Digital Theater Systems, Inc., Attention: ▇▇▇
         ▇▇▇▇▇▇▇▇ (Fax: (▇▇▇) ▇▇▇-▇▇▇▇);
         (c) if to any of the Selling Stockholders, shall be delivered or sent
         by mail, telex or facsimile transmission to such Selling Stockholder at
         the address set forth on Schedule C hereto; provided, however, that any
         notice to an Underwriter pursuant to Section 7 shall be delivered or
         sent by
                                                                              28
         mail, telex or facsimile transmission to such Selling Stockholder at
         the address set forth on Schedule C hereto; Underwriter at its address
         set forth in its acceptance telex to the Representatives, which address
         will be supplied to any other party hereto by the Representatives upon
         request. Any such statements, requests, notices or agreements shall
         take effect at the time of receipt thereof. Any party to this Agreement
         may change its address for notice by sending to the other parties to
         this Agreement written notice of a new address for such purposes.
14. DEFINITION OF CERTAIN TERMS. For purposes of this Agreement, (a) "business
day" means any day on which the New York Stock Exchange, Inc. is open for
trading and (b) "subsidiary" has the meaning set forth in Rule 405 of the Rules
and Regulations.
15. GOVERNING LAW. THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK.
16. UNDERWRITERS' INFORMATION. The parties hereto acknowledge and agree that,
for all purposes of this Agreement, the "Underwriters' Information" consists
solely of the following information in the Prospectus: (i) the last paragraph on
the front cover page concerning the terms of the offering by the Underwriters;
and (ii) the table of underwriters participating in the offering in the first
paragraph under the heading "Underwriting" and (ii) the statements concerning
the Underwriters contained in the third paragraph under the heading
"Underwriting" (which paragraph begins "The underwriters propose to offer the
shares . . . .").
17. AUTHORITY OF THE REPRESENTATIVES. In connection with this Agreement, you
will act for and on behalf of the several Underwriters, and any action taken
under this Agreement by the Representatives, will be binding on all the
Underwriters; and any action taken under this Agreement by any of the
Attorneys-in-Fact will be binding on all the Selling Stockholders.
18. PARTIAL UNENFORCEABILITY. The invalidity or unenforceability of any Section,
paragraph or provision of this Agreement shall not affect the validity or
enforceability of any other Section, paragraph or provision hereof. If any
Section, paragraph or provision of this Agreement is for any reason determined
to be invalid or unenforceable, there shall be deemed to be made such minor
changes (and only such minor changes) as are necessary to make it valid and
enforceable.
19. GENERAL. This Agreement constitutes the entire agreement of the parties to
this Agreement and supersedes all prior written or oral and all contemporaneous
oral agreements, understandings and negotiations with respect to the subject
matter hereof. In this Agreement, the masculine, feminine and neuter genders and
the singular and the plural include one another. The section headings in this
Agreement are for the convenience of the parties only and will not affect the
construction or interpretation of this Agreement. This Agreement may be amended
or modified, and the observance of any term of this Agreement may be waived,
only by a writing signed by the Company, the Selling Stockholders and the
Representatives.
20. COUNTERPARTS. This Agreement may be signed in any number of counterparts,
each of which shall be an original, with the same effect as if the signatures
thereto and hereto were upon the same instrument.
Any person executing and delivering this Agreement as Attorney-in-Fact for the
Selling Stockholders represents by so doing that he or she has been duly
appointed as Attorney-in-Fact by such Selling Stockholders pursuant to a validly
existing and binding Power of Attorney which authorizes such Attorney-in-Fact to
take such action.
                                                                              29
         If the foregoing is in accordance with your understanding of the
agreement between the Company, the Selling Stockholders and the several
Underwriters, kindly indicate your acceptance in the space provided for that
purpose below.
                            [Signature Page Follows]
                                                                              30
         If the foregoing is in accordance with your understanding of the
agreement between the Company and the several Underwriters, kindly indicate your
acceptance in the space provided for that purpose below.
                                              Very truly yours,
                                              DIGITAL THEATER SYSTEMS, INC.
                                              By:
                                                  ------------------------------
                                              Name:  ▇▇▇ ▇▇▇▇▇▇▇▇
                                              Title: President and Chief
                                                     Executive Officer
                                              SELLING STOCKHOLDERS LISTED IN
                                              SCHEDULE B
                                              By: Attorney in fact
                                              By:
                                                  ------------------------------
                                              Attorney-in-Fact acting on own
                                              behalf and on behalf of the
                                              Selling Stockholders listed in
                                              Schedule B.
Accepted as of the date first
above written:
▇▇ ▇▇▇▇▇ SECURITIES CORPORATION
▇▇▇▇▇▇▇ ▇▇▇▇▇ & COMPANY
▇▇▇▇▇▇ ▇▇▇▇▇▇ PARTNERS LLC
     Acting on their own behalf
     and as Representatives of
     several Underwriters referred
     to in the foregoing Agreement.
By: ▇▇ ▇▇▇▇▇ SECURITIES CORPORATION
By:
    -------------------------------------
    Name:  ▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇, ▇▇.
    Title: Head of Equity Capital Markets
                                                                              31
                                   SCHEDULE A
                                               Number                Number of
                                               of Firm               Optional
                                               Shares                 Shares
                                                to be                  to be
Name                                          Purchased              Purchased
----                                          ---------              ---------
                                                               
▇▇ ▇▇▇▇▇ Securities Corporation
▇▇▇▇▇▇▇ ▇▇▇▇▇ & Company
▇▇▇▇▇▇ ▇▇▇▇▇▇ Partners LLC
Total
                                              =========             ==========
                                                                              32
                                   SCHEDULE B
Selling Shareholder[s]                                                        Number of              Number of
----------------------                                                          Firm                 Optional
                                                                              Shares to              Shares to
                                                                               be Sold                be Sold
                                                                              ---------              ----------
                                                                                               
[Name and address]
                                                                              ----------             ----------
[Name and address]
                                                                              ----------             ----------
[Name and address]
                                                                              ----------             ----------
[Name and address]
                                                                              ----------             ----------
[Name and address]
                                                                              ----------             ----------
Total
                                                                              ==========             ==========
                                                                              33
                                   SCHEDULE C
                                                                              34
                                    EXHIBIT I
                           [Form of Lock-Up Agreement]
                                                                          [Date]
▇▇ ▇▇▇▇▇ Securities Corporation
     As representative of the several Underwriters
▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇
▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇  ▇▇▇▇▇
Re:  Digital Theater Systems, Inc
Ladies and Gentlemen:
         In order to induce ▇▇ ▇▇▇▇▇ Securities Corporation ("▇▇ ▇▇▇▇▇") and the
several underwriters to enter in to a certain 
underwriting agreement with
Digital Theater Systems, Inc., a Delaware corporation (the "Company"), with
respect to the public offering (the "Offering") of shares of the Company's
Common Stock, par value $0.001 per share ("Common Stock"), the undersigned
hereby agrees that for a period of 180 days following the date of the final
prospectus filed by the Company with the Securities and Exchange Commission in
connection with the Offering (the "Lock-Up Period"), the undersigned will not,
without the prior written consent of ▇▇ ▇▇▇▇▇, directly or indirectly, (i)
offer, sell, assign, transfer, pledge, contract to sell, or otherwise dispose
of, any shares of Common Stock (including, without limitation, Common Stock
which may be deemed to be beneficially owned by the undersigned in accordance
with the rules and regulations promulgated under the Securities Act of 1933, as
the same may be amended or supplemented from time to time (such shares, the
"Beneficially Owned Shares")) or securities convertible into or exercisable or
exchangeable in Common Stock, (ii) enter into any swap, hedge or similar
agreement or arrangement that transfers, in whole or in part, the economic risk
of ownership of the Beneficially Owned Shares or securities convertible into or
exercisable or exchangeable in Common Stock or (iii) engage in any short selling
of the Common Stock.
         The foregoing paragraph shall not apply to any transfer of shares of
Common Stock or any security convertible into Common Stock (a) as a bona fide
gift or gifts, (b) to any trust for the benefit of the undersigned or the
undersigned's immediate family, (c) by will or intestacy to the undersigned's
legal representative, heir or legatee, (d) if the undersigned is a partnership
or corporation or similar entity, as a distribution to partners or stockholders
of the undersigned or (e) acquired in the public market on or after the date of
the final prospectus filed by the Company with the Securities and Exchange
Commission in connection with the Offering, other than shares acquired through
any directed share program of the Company, which shall be subject to the
restrictions of said program; provided that each donee, transferee or
distributee shall execute and deliver to ▇▇ ▇▇▇▇▇ a duplicate form of this
letter.
         Anything contained herein to the contrary notwithstanding, any person
to whom shares of Common Stock or Beneficially Owned Shares are transferred from
the undersigned shall be bound by the terms of this Agreement.
         In addition, the undersigned hereby waives, from the date hereof until
the expiration of the Lock-Up Period, any and all rights, if any, to request or
demand registration pursuant to the Securities Act of any shares of Common Stock
that are registered in the name of the undersigned or that are Beneficially
Owned Shares. In order to enable the aforesaid covenants to be enforced, the
undersigned hereby
                                                                              35
consents to the placing of legends and/or stop-transfer orders with the transfer
agent of the Common Stock with respect to any shares of Common Stock or
Beneficially Owned Shares.
         If the Offering does not close by October 31, 2003, this Agreement
shall terminate immediately upon such date and be of no further force and
effect.
                                                By:
                                                      --------------------------
                                                Name:
                                                Title: