EXHIBIT 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in (i) the Registration Statement of Ampex Corporation on Form S-8 (File No. 33-77664), (ii) the Registration Statement of Ampex Corporation on Form S-8 (File No. 33-92640), (iii) the Post-Effective Amendment No. 1 on Form S-3 to Form S-1 Registration Statement of Ampex Corporation (File No. 33-91312), (iv) the Registration Statement of Ampex Corporation on Form S-3 (File No. 333-66789), and (v) the Registration Statement of Ampex Corporation on Form S-3 (File No. 333-85605), (vi) Registration Statement of Ampex Corporation on Form S-8 (File No. 333-05623), (vii) Post-Effective Amendment No. 1 on Form S-3 to Form S-8 Registration Statement of Ampex Corporation (File No. 333-05623), (viii) Post-Effective Amendment No. 1 to Form S-3 Registration Statement of Ampex Corporation (File No. 333-85605), (ix) Registration Statement of Ampex Corporation Form S-8 (File No. 333-41652), (x) Registration Statement of Ampex Corporation on Form S-8 (File No. 333-81534) and (xi) Registration Statement of Ampex Corporation on Form S-2 (File No. 333-88890), of our report dated April 9, 2004, except for Note 1, as to which date is April 15, 2005 relating to the consolidated financial statements and financial statement schedule, which appears in this Form 10-K/A.

/s/ PRICEWATERHOUSECOOPERS LLP

PricewaterhouseCoopers LLP

San Jose, California

April 19, 2005