Vintage Pioneer SA-7100 stereo amplifier

Description
The SA-7100 is Pioneer's advanced stereo integrated amplifier.
It features a 3-stage direct coupled equaliser section for dynamic range, FET equipped tone control amplifier section, turnover frequency selectors for versatile tone control facilities and a reliable automatic protection circuit.
Specifications
Power output: 20 watts per channel into 8? (stereo)
Frequency response: 7Hz to 80kHz
Total harmonic distortion: 0.5%
Damping factor: 40
Input sensitivity: 2mV (mic), 2.5mV (MM), 150mV (line)
Signal to noise ratio: 90dB (line)
Dimensions: 430 x 138 x 341mm
Weight: 10.1kg
Year: 1974