Audio Research D-51

Vintage High Definition Audio Stereo Tube Amplifier

All pre-owned product is tested in our service department and have been passed for sale... and comes with a 90 day warranty!

WOW - A classic vintage tube amp from 1972 in AMAZING condition! Original box and packing are NOT available, but we will pack carefully. Beautiful Gold Face plate.


Gain Adjustments on sides

Power output: 50 watts per channel into 8Ω (stereo)

Frequency response: 15Hz to 30kHz

Total harmonic distortion: 1%

Damping factor: 14

Input sensitivity: 1.5V

Signal to noise ratio: 80dB

Speaker load impedance: 4Ω to 16Ω

Valve complement: 4 x 12AX7, 8 x 6FQ7, 3 x 6550

Dimensions: 19 x 7.5 x 12.25 inches

Weight: 50lbs

Year: 1972

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