OVER 3120

Repair Maintenance

Taiwan 1985

Power amplifier
Power 2 x 25 W 8 Ohms
Total harmonic distortion 0.02%
Intermodilation distortion 0.02%
Normal input impedance 11 kOhms
Input impedance lab 22 kOhms
1 V input sensitivity
Frequency response lab input 10 Hz - 70 kHz
Normal input frequency response 15 Hz - 35 kHz

Preamplifier
Phono input sensitivity mm 2.7 mV 47 kOhms (max 250 mV)
Phono input sensitivity mc 0.18 mV (Max 18 mV)
Sensitivity of line inputs 180 mV 20 kOhms
Phono signal to noise ratio mm 75 dB
Phono signal to noise ratio mc 73 dB
Line noise signal ratio 104 dB
Frequency response ± 0.5dB 20Hz - 20kHz