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Audio Research DUAL-51 Tube Power Amplifier * 2012 Factory Upgraded
Audio Research D-51
High Definition Audio Amplifier (1972)
Specifications
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
$450.00
Original: $1,500.00
-70%Audio Research DUAL-51 Tube Power Amplifier * 2012 Factory Upgraded—
$1,500.00
$450.00
Description
Audio Research D-51
High Definition Audio Amplifier (1972)
Specifications
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
