OPTONICA SM-7100 HifiVintage Réparations

OPTONICA SM-5200

SM-7100

Integrated amplifier
Year : 1981-82

Power output: 33 watts per channel into 8Ω (stereo)
Frequency response: 10Hz to 80kHz
Total harmonic distortion: 0.09%
Damping factor: 40
Input sensitivity: 2.3mV (MM), 150mV (DIN), 150mV (line)
Signal to noise ratio: 70dB (MM), 90dB (line)
Output: 150mV (line), 60mV (DIN)
Speaker load impedance: 4Ω (minimum)
Semiconductors: 3 x IC, 13 x transistors, 8 x diodes, 7 x LED
Dimensions: 430 x 75 x 382mm
Weight: 7.7kg