Vintage Sansui AU-317 Integrated Stereo Amplifier with rack handles Pro Serviced by my tech who has 40+ years of experience! Power output: 50 watts per channel into 8Ω (stereo)Frequency response: 5Hz to 70kHzTotal harmonic distortion: 0.03%Damping factor: 70Input sensitivity: 20mV (mic), 2.5mV (MM), 150mV (line)Signal to noise ratio: 77dB (MM), 100dB (line)Channel separation: 65dB (MM), 73dB (line)Output: 150mV (line), 1V (Pre out)Speaker load impedance: 8Ω (minimum)Semicon...ductors: 51 x transistors, 25 x diodes, 2 x FETDimensions: 430 x 110 x 340mmWeight: 9.5kgYear: 1978