Audio Research SP-3A-1
High Definition Stereo Control Amplifier
Frequency response: 10Hz to 30kHz
Total harmonic distortion: 0.005%
Signal to noise ratio: 70dB (MM), 90dB (line)
Channel separation: 30dB (line)
Dimensions: 15-5/8 x 5-1/2 x 12-1/2 inches
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