For Sale: Gold Faced Audio Research D-76A Tube Amp. Works perfectly. Has Amperex preamp tubes, GE 6550 Regulator tube and un-labled 6550 (appear to be Tung Sol) Output Tubes. Output tubed biased up at 55ma per manual. Sounds excellent. Manual available. Matching Audio research SP-3A-1 also available at right price, but currently not for sale. Arguably one of Audio Research's best tube amp ever made.
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