Stock Purchase Warrant exercisable until September 30, 2007

THIS WARRANT AND THE UNDERLYING SECURITIES HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “ACT”). THEY MAY NOT BE SOLD, OFFERED FOR SALE, PLEDGED OR HYPOTHECATED IN THE ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT AS TO SUCH SECURITIES UNDER THE ACT OR AN OPINION OF COUNSEL SATISFACTORY TO THE CORPORATION THAT SUCH REGISTRATION IS NOT REQUIRED.

THIS CERTIFIES THAT, for value received, Sunrise Capital, Inc. or assigns (the “Holder”), is entitled to subscribe for and purchase at the Exercise Price (defined below) from American Technology Corporation, a Delaware corporation, (the “Corporation”) up to one hundred thousand (100,000) shares of Common Stock of the Corporation (the “Common Stock”). The term “Warrant” as used herein shall mean this Warrant.

1. Definitions. As used herein, the following terms shall have the following respective meanings:

(a) “Exercise Period” shall mean the period commencing with the date beginning 48 hours after the date hereof and ending five (5) years from September 30, 2002, unless sooner terminated as provided below.

(b) “Exercise Price” shall mean $4.25 per share, subject to adjustment pursuant to Section 6.1.

2. Exercise of Warrant. The rights represented by this Warrant may be exercised in whole or in part at any time during the Exercise Period, by delivery of the following to the Corporation at its address set forth above (or at such other address as it may designate by notice in writing to the Holder):

(b) Payment of the Exercise Price either (i) in cash or by check, or (ii) by cancellation of indebtedness; and

Upon the exercise of the rights represented by this Warrant, certificates for the Exercise Shares so purchased shall be registered in the name of, and issued and delivered to the Holder, together with a warrant of like tenor and effect for any Exercise Shares not purchased upon partial exercise hereof.

The person in whose name any certificate or certificates for Exercise Shares are to be issued upon exercise of this Warrant shall be deemed to have become the holder of record of such shares on the date on which this Warrant was surrendered and payment of the Exercise Price was made, irrespective of the date of delivery of such certificate or certificates, except that, if the date of such surrender and payment is a date when the stock transfer books of the Corporation are closed, such person shall be deemed to have become the holder of such shares at the close of business on the next succeeding date on which the stock transfer books are open.

2.1 Net Exercise. Notwithstanding any provisions herein to the contrary, if the fair market value of one share of the Corporation’s Common Stock is greater than the Exercise Price (at the date of calculation as set forth below), in lieu of exercising this Warrant by payment of cash, the Holder may elect to receive shares equal to the value (as determined below) of this Warrant (or the portion thereof being canceled) by surrender of this Warrant at the principal office of the Corporation together with the properly endorsed Notice of Exercise in which event the Corporation shall issue to the Holder a number of shares of Common Stock computed using the following formula:

For purposes of this Section 2.1 fair market value of a share of Common Stock shall mean:

(i) If traded on a stock exchange, the fair market value of the Common Stock shall be deemed to be the average of the closing selling prices of the Common Stock on the stock exchange determined by the Board of Directors to be the primary market for the Common Stock over the ten (10) trading day period ending on the date prior to the date the Warrant is exercised, as such prices are officially quoted in the composite tape of transactions on such exchange;

(ii) If traded over-the-counter or if listed by the National Daily Quotation Service “Pink Sheets,” the fair market value of the Common Stock shall be deemed to be the average of the closing bid prices (or, if such information is available, the closing selling prices) of the Common Stock over the ten (10) trading day period ending on the date prior to the date the Warrant is exercised, as such prices are reported by the National Association of Securities Dealers through its NASDAQ system, any successor system, the Pink Sheets, or any exchange on which it is listed, whichever is applicable; or

(iii) If there is no public market for the Common Stock, then the fair market value shall be determined by the Board of Directors of the Corporation in good faith.

3.1 Covenants as to Exercise Shares. The Corporation covenants and agrees that all Exercise Shares that may be issued upon the exercise of the rights represented by this Warrant will, upon issuance, be duly authorized, validly issued and outstanding, fully paid and nonassessable, and free from all preemptive rights of any shareholder and all taxes, liens and charges with respect to the issuance thereof. The Corporation further covenants and agrees that the Corporation will at all times during the Exercise Period, have authorized and reserved, free from preemptive rights, a sufficient number of shares of its Common Stock to provide for the exercise of the rights represented by this Warrant. If at any time during the Exercise Period the number of authorized but unissued shares of Common Stock shall not be sufficient to permit exercise of this Warrant, the Corporation will take such corporate action as may, in the opinion of its counsel, be necessary to increase its authorized but unissued shares of Common Stock to such number of shares as shall be sufficient for such purposes.

3.2 No Impairment. Except and to the extent as waived or consented to by the Holder, the Corporation will not, by amendment of its Certificate of Incorporation or through any reorganization, transfer of assets, consolidation, merger, dissolution, issue or sale of securities or any other voluntary action, avoid or seek to avoid the observance or performance of any of the terms to be observed or performed hereunder by the Corporation, but will at all times in good faith assist in the carrying out of all the provisions of this Warrant and in the taking of all such action as may be necessary or appropriate in order to protect the exercise rights of the Holder against impairment.

3.3 Notices of Record Date. In the event of any taking by the Corporation of a record of the holders of any class of securities for the purpose of determining the holders thereof who are entitled to receive any dividend or other distribution, the Corporation shall mail to the Holder, at least ten (10) days prior to the date specified herein, a notice specifying the date on which any such record is to be taken for the purpose of such dividend or distribution.

4.1 Acquisition of Warrant for Personal Account; Financial Risk. The Holder represents and warrants that it is acquiring the Warrant solely for its account for investment and not with a view to or for sale or distribution of said Warrant or any part thereof. The Holder also represents that the entire legal and beneficial interests of the Warrant and Exercise Shares the Holder is acquiring are being acquired for, and will be held for, its account only. Holder has such knowledge and experience in financial and business matters, or Holders professional advisors who are not affiliated with and who are not associated with the Corporation have such knowledge and experience in financial or business matters, as to be capable of evaluating the merits and risks of its investment and of protecting their own interests in connection with the transaction, and has the ability to bear the economic risks of its investment and can afford a complete loss of Holder’s investment.

4.2 Accredited Investor. The Holder represents and warrants that it is an “Accredited Investor” as that term is defined in Regulation D, Rule 501 of the Securities Act of 1933.

(a) The Holder understands that the Warrant and the Exercise Shares have not been registered under the Securities Act of 1933, as amended (the “Act”) on the basis that no distribution or public offering of the stock of the Corporation is to be effected by the issuance of this Warrant. The Holder realizes that the basis for the exemption may not be present if, notwithstanding its representations, the Holder has a present intention of acquiring the securities for a fixed or determinable period in the future, selling (in connection with a distribution or otherwise), granting any participation in, or otherwise distributing the securities. The Holder has no such present intention.

(b) The Holder recognizes that the Warrant and the Exercise Shares must be held indefinitely unless they are subsequently registered under the Act or an exemption from such registration is available. The Holder recognizes that the Corporation has no obligation hereunder to register the Warrant or the Exercise Shares or to comply with any exemption from such registration, provided, however, the Exercise Shares are subject to piggyback registration rights as set forth in Section 5 herein.

(c) The Holder is aware that neither the Warrant nor the Exercise Shares may be sold pursuant to Rule 144 adopted under the Act unless certain conditions are met, including, among other things, the existence of a public market for the shares, the availability of certain current public information about the Corporation, the resale following the required holding period under Rule 144 and the number of shares being sold during any three month period not exceeding specified limitations.

(a) The Holder further agrees not to make any disposition of all or any part of the Warrant or Exercise Shares in any event unless and until:

(i) The Corporation shall have received a letter secured by the Holder from the Securities and Exchange Commission stating that no action will be recommended to the Commission with respect to the proposed disposition;

(ii) There is then in effect a registration statement under the Act covering such proposed disposition and such disposition is made in accordance with said registration statement; or

(iii) The Holder shall have notified the Corporation of the proposed disposition and shall have furnished the Corporation with a detailed statement of the circumstances surrounding the proposed disposition, and if reasonably requested by the Corporation, the Holder shall have furnished the Corporation with an opinion of counsel, reasonably satisfactory to the Corporation, for the Holder to the effect that such disposition will not require registration of such Warrant or Exercise Shares under the Act or any applicable state securities laws.

(b) The Holder understands and agrees that all certificates evidencing the shares to be issued to the Holder may bear the following legend:

THESE SECURITIES HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “ACT”). THEY MAY NOT BE SOLD, OFFERED FOR SALE, PLEDGED OR HYPOTHECATED IN THE ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT AS TO THE SECURITIES UNDER THE ACT OR AN OPINION OF COUNSEL SATISFACTORY TO THE CORPORATION THAT SUCH REGISTRATION IS NOT REQUIRED.

(a) Holder shall have the right, at any time and from time to time until September 30, 2007, to include all of the shares purchased or purchasable upon the exercise of this Warrant ( the “Registrable Shares”) within any Registration Statement of the Corporation filed by the Corporation covering shares of its Common Stock other than a Registration Statement filed solely with respect to any employee benefit plan of the Corporation or an offering solely related to an acquisition or for which such Registrable Shares cannot, in the sole judgment of the Corporation, be appropriately registered. The Corporation shall promptly give written notice to Holder of any intended registration of its Common Stock not less than forty-five (45) days prior to the anticipated effective date of the Registration Statement, and Holder shall, within fifteen (15) days of receipt thereof, notify the Corporation of the number of Registrable Shares it desires to include in the Registration Statement. The number of Registrable Shares which may be included by the Holder in any such Registration Statement may be restricted by the Corporation if, in the opinion of the Corporation’s managing underwriter, the number of shares proposed to be sold by the Holder and by the Corporation in such offering exceeds the number of securities which can be sold in such offering. In such event, the Registrable Shares of Holder to be included within such Registration Statement shall not exceed the number approved for inclusion therein by the Corporation and its managing underwriter. All costs or expenses, incident to the registration, qualification or listing of such securities shall be paid by the Corporation, and the Corporation shall comply with all reasonable requests of Holder made in connection with the registration, qualification, listing or sale of Registrable Shares.

(b) Each Holder of Warrants and Warrant Shares to be sold pursuant to any Registration Statement (each, a “Distributing Holder”) shall severally, and not jointly, indemnify and hold harmless the Corporation, its officers and directors, each underwriter and each person, if any, who controls the Corporation and such underwriter, against any loss, claim, damage, expense or liability, joint or several, as incurred, to which any of

them may become subject under the Securities Act or any other statute or at common law, in so far as such loss, claim, damage, expense or liability (or actions in respect thereof) arises out of or is based upon any untrue statement or alleged untrue statement of any material fact contained in any such Registration Statement, any preliminary prospectus or final prospectus contained therein, or any amendment or supplement thereto, or any omission or alleged omission to state therein a material fact required to be stated therein or necessary to make the statements therein, in light of the circumstances under which they were made, not misleading, in each case to the extent, but only to the extent, that such 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 Corporation by such Distributing Holder specifically for use therein. Such Distributing Holder shall reimburse the Corporation, such underwriter and each such officer, director or controlling person for any legal or other expenses reasonably incurred by any of them in connection with investigating or defending any such liability, as incurred. Notwithstanding the foregoing, such indemnity with respect to such preliminary prospectus or such final prospectus shall not inure to the benefit of the Corporation, its officers or directors, or such underwriter (or such controlling person of the Corporation or the underwriter) if the person asserting any such loss, claim, damage, expense or liability purchased the securities that are the subject thereof and did not receive a copy of the final prospectus (or the final prospectus as then amended, revised or supplemented) at or prior to the time such furnishing is required by the Securities Act in any case where any such untrue statement or omission of a material fact contained in the preliminary prospectus was corrected in the final prospectus (or, if contained in the final prospectus, was subsequently corrected by amendment, revision or supplement).

(c) In connection with any public registration of this Corporation’s securities, the Holder (and any transferee of Holder) agrees, upon the request of the Corporation or the underwriter(s) managing such underwritten offering of the Corporation’s securities, not to sell, make any short sale of, loan, grant any option for the purchase of, or otherwise dispose of this Warrant, any of the shares of Common Stock issuable upon exercise of this Warrant or any other securities of the Corporation heretofore or hereafter acquired by Holder (other than those included in the registration) without the prior written consent of the Corporation and such underwriter(s), as the case may be, for a period of time not to exceed one hundred eighty (180) days from the effective date of the registration. Upon request by the Corporation, Holder (and any transferee of Holder) agrees to enter into any further agreement in writing in a form reasonably satisfactory to the Corporation and such underwriter(s). The Corporation may impose stop-transfer instructions with respect to the securities subject to the foregoing restrictions until the end of said 180-day period. Any shares issued upon exercise of this Warrant shall bear an appropriate legend referencing this lock-up provision.

6. Adjustments. The Exercise Price and Exercise Shares purchaseable hereunder are subject to adjustment form time to time as follows:

6.1 Recapitalizations, Reorganizations, etc. In the event of changes in the outstanding Common Stock of the Corporation by reason of stock dividends, split-ups, recapitalizations, reclassifications, combinations or exchanges of shares, separations, reorganizations, liquidations, or the like, the number and class of shares or other property available under the Warrant in the aggregate and the Exercise Price shall be correspondingly adjusted to give the Holder of the Warrant, on exercise for the same aggregate Exercise Price, the total number, class, and kind of shares or other property as the Holder would have owned had the Warrant been exercised prior to the event and had the Holder continued to hold such shares until after the event requiring adjustment; provided, however, that such adjustment shall not be made with respect to, and this Warrant shall terminate if not exercised prior to, the events set forth in Section 8 below. The form of this Warrant need not be changed because of any adjustment in the number of Exercise Shares subject to this Warrant. Upon any adjustment pursuant to this Section 6.1, the Corporation shall give written notice thereof, by first class mail postage prepaid, addressed to the registered Holder of this Warrant at the address of such Holder as shown on the books of the Corporation. The notice shall be signed by the Corporation’s’ chief financial officer and shall state the Exercise Price resulting from such adjustment and number, class and kind of shares or other property purchasable at such price upon the exercise of this Warrant, setting forth in reasonable detail the method of calculation and the facts upon which such calculation is based.

7. Fractional Shares. No fractional shares shall be issued upon the exercise of this Warrant as a consequence of any adjustment pursuant hereto. All Exercise Shares (including fractions) issuable upon exercise of

this Warrant may be aggregated for purposes of determining whether the exercise would result in the issuance of any fractional share. If, after aggregation, the exercise would result in the issuance of a fractional share, the Corporation shall, in lieu of issuance of any fractional share, pay the Holder otherwise entitled to such fraction a sum in cash equal to the product resulting from multiplying the then current fair market value of an Exercise Share by such fraction.

8. Early Termination. In the event of, at any time during the Exercise Period, the consolidation or merger of the Corporation with or into another corporation in which the Corporation is not the surviving entity or in which the stockholders of the Corporation do not own at least 51% of the voting power of the surviving entity (other than a merger solely to effect a reincorporation of the Corporation into another state), or the sale or other disposition of all or substantially all the properties and assets of the Corporation in its entirety to any other person, the Corporation shall provide to the Holder twenty (20) days advance written notice of such consolidation, merger or sale or other disposition of the Corporation’s assets, and of this Warrant shall terminate unless exercised prior to the date of the occurrence of such consolidation, merger or sale or other disposition of the Corporation’s assets.

9. No Stockholder Rights. This Warrant in and of itself (prior to the exercise of rights hereunder) shall not entitle the Holder to any voting rights or other rights as a shareholder of the Corporation.

10. Transfer of Warrant. Subject to applicable laws, the restriction on transfer set forth on the first page of this Warrant, this Warrant and all rights hereunder are transferable, by the Holder in person or by duly authorized attorney, upon delivery of this Warrant and the form of assignment attached hereto to any transferee designated by Holder. The transferee shall sign an investment representation letter in form and substance reasonably satisfactory to the Corporation.

11. Lost, Stolen, Mutilated or Destroyed Warrant. If this Warrant is lost, stolen, mutilated or destroyed, the Corporation may, on such terms as to indemnity or otherwise as it may reasonably impose (which shall, in the case of a mutilated Warrant, include the surrender thereof), issue a new Warrant of like denomination and tenor as the Warrant so lost, stolen, mutilated or destroyed. Any such new Warrant shall constitute an original contractual obligation of the Corporation, whether or not the allegedly lost, stolen, mutilated or destroyed Warrant shall be at any time enforceable by anyone.

12. Notices, etc. All notices and other communications required or permitted hereunder shall be in writing and shall be sent by telex, telegram, express mail or other form of rapid communications, if possible, and if not then such notice or communication shall be mailed by first-class mail, postage prepaid, addressed in each case to the party entitled thereto at the following addresses: (a) if to the Corporation, to American Technology Corporation, Attention: President, 13114 Evening Creek Drive South, San Diego, California 92128 and (b) if to the Holder, Sunrise Capital, Inc., 8617 Canyon View Drive, Las Vegas, NV 89117 or at such other address as one party may furnish to the other in writing. Notice shall be deemed effective on the date dispatched if by personal delivery, telecopy, telex or telegram, two days after mailing if by express mail, or three days after mailing if by first-class mail.

13. Acceptance. Receipt of this Warrant by the Holder shall constitute acceptance of and agreement to all of the terms and conditions contained herein.

14. Amendment. Any term of this Warrant may be amended with the written consent of the Corporation and the holders of Warrants representing a majority in interest of the then outstanding Exercise Shares issuable upon exercise of any outstanding Warrant which was issued in connection with the Notes. Any amendment effected in accordance with this Section 14 shall be binding upon each holder of the Warrants.

15. Governing Law. This Warrant and all rights, obligations and liabilities hereunder shall be governed by the laws of the State of California.

IN WITNESS WHEREOF, the Corporation has caused this Warrant to be executed by its duly authorized officer as of September 30, 2002.

American Technology Corporation

By		/s/ ELWOOD G. NORRIS

(1) The undersigned hereby elects to purchase shares of the Common Stock of American Technology Corporation (the “Corporation”) pursuant to the terms of the attached Warrant, and tenders herewith payment of the exercise price in full, together with all applicable transfer taxes, if any.

The undersigned hereby elects to purchase shares of the Common Stock of American Technology Corporation. (the “Corporation”) pursuant to the terms of the net exercise provisions set forth in Section 2.1 of the attached Warrant, and shall tender payment of all applicable transfer taxes, if any.

(2) Please issue a certificate or certificates representing said shares of Common Stock in the name of:

(3) The undersigned represents that (i) the aforesaid shares of Common Stock are being acquired for the account of the undersigned for investment and not with a view to, or for resale in connection with, the distribution thereof and that the undersigned has no present intention of distributing or reselling such shares; (ii) the undersigned is aware of the Corporation’s business affairs and financial condition, has read and reviewed the Corporation’s Form 10-K Annual Report for the latest fiscal year, and the Form 10-Q Quarterly Reports for the latest fiscal quarters and all other reports filed with the Securities and Exchange Commission pursuant to the Securities Exchange Act of 1934, as amended, and has acquired sufficient information about the Corporation to reach an informed and knowledgeable decision regarding its investment in the Corporation; (iii) the undersigned is experienced in making investments of this type and has such knowledge and background in financial and business matters that the undersigned is capable of evaluating the merits and risks of this investment and protecting the undersigned’s own interests; (iv) the undersigned understands that the shares of Common Stock issuable upon exercise of this Warrant have not been registered under the Securities Act of 1933, as amended (the “Securities Act”), by reason of a specific exemption from the registration provisions of the Securities Act, which exemption depends upon, among other things, the bona fide nature of the investment intent as expressed herein, and, because such securities have not been registered under the Securities Act, they must be held indefinitely unless subsequently registered under the Securities Act or an exemption from such registration is available; (v) the undersigned is aware that the aforesaid shares of Common Stock may not be sold pursuant to Rule 144 adopted under the Securities Act unless certain conditions are met and until the undersigned has held the shares for the number of years prescribed by Rule 144, that among the conditions for use of the Rule is the availability of current information to the public about the Corporation and (vi) the undersigned agrees not to make any disposition of all or any part of the aforesaid shares of Common Stock unless and until there is then in effect a registration statement under the Securities Act covering such proposed disposition and such disposition is made in accordance with said registration statement, or the undersigned has provided the Corporation with an opinion of counsel reasonably satisfactory to the Corporation, stating that such registration is not required.

FOR VALUE RECEIVED, the foregoing Warrant and all rights evidenced thereby are hereby assigned to

NOTE: The signature to this Assignment Form must correspond with the name as it appears on the face of the Warrant, without alteration or enlargement or any change whatever. Officers of corporations and those acting in a fiduciary or other representative capacity should provide proper evidence of authority to assign the foregoing Warrant.

Where	X =	the number of shares of Common Stock to be issued to the Holder
	Y =	the number of shares of Common Stock purchasable under the Warrant or, if only a portion of the Warrant is being exercised, the portion of the Warrant being canceled (at the date of such calculation)
	A =	the fair market value of one share of the Corporation’s Common Stock (at the date of such calculation)
	B =	Exercise Price (as adjusted to the date of such calculation)

Name:
		(Please Print)

Address:
		(Please Print)

Dated:

Holder’s Signature:

Holder’s Address:

(Date)		(Signature)

(Print name)