Pioneer - SA-610 Solid state amplifier

Pioneer SA 610:
The SA series features excellent build quality and a pleasant front end. With its 45 watts per channel it also makes even demanding speakers like AR 5, AR 7, etc. sound good. It is kept in a manicured condition and works perfectly. Note the interior, which looks NEW.
I attach some specifications:

Power output: 45 watts per channel into 8Ω (stereo)
Frequency response: 10Hz to 60kHz
Total harmonic distortion: 0.03%
Damping factor: 50
Input sensitivity: 2.5mV (MM), 150mV (line)
Signal to noise ratio: 82dB (MM), 100dB (line)
Output: 150mV (line)
Semiconductors: 3 x IC, 27 x transistors, 18 x diodes
Dimensions: 420 x 94 x 347mm
Weight: 7kg
Year: 1980