EX-23.1 4 0004.txt CONSENT OF INDEPENDENT CERTIFIED ACCOUNTANTS CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS The Board of Directors American Technology Corporation We hereby consent to the incorporation by reference in the Registration Statements on Forms S-8 (File No. 333-09265, File No. 333-09269, File No. 333- 23845 and File No. 333-59929) and Forms S-3 (File No. 333-27455, File No. 333- 36003, File No. 333-71351 and File No. 333-36000) of our report dated November 17, 2000 relating to the financial statements of American Technology Corporation appearing in the Company's Annual Report on Form 10-K for the year ended September 30, 2000. /s/ BDO SEIDMAN, LLP -------------------- BDO Seidman, LLP Denver, Colorado December 28, 2000