Technics SU 8080

Maintenance repair

Japan 1976

Power amplifier
Power 2 x 72 W 8 Ohms
Power 2 x 90 W 4 Ohms
Total harmonic distortion 0.02% 8 Ohms
Power bandwidth -3 dB 5 Hz - 40 kHz
Frequency response +0 -0.1 dB 20 Hz - 20 kHz
Frequency response +0 -3 dB 0 Hz - 100 kHz
Final signal to noise ratio 115 dB

Damping factor 70 at 8 Ohms
Final input sensitivity 1 V 50 kOhms
Total load impedance 4 - 16 Ohms

Preamplifier
Phono input sensitivity mm 2.5 mV 27/47 kOhms (max 280 mV)
Line input sensitivity 200 mV 35 kOhms
Total harmonic distortion of phono input 0.01%
Phono signal to noise ratio 88 dB
Line noise signal ratio 106 dB
Frequency response in line +0 -0.1 dB 20 Hz - 20kHz
Bass tone control ± 7.5 dB at 50 Hz
Treble control ± 7.5 dB at 20 kHz
Loudness +8 dB a 100 Hz
Bass filter 30 Hz 12 dB / oct
Filtro alti 10 kHz 6 dB/oct
Muting -14 dB
Uscita for 1 V max 9 V