Sansui 890DB

Repair

Japan 1977

Audio
Power 2 x 80 W 8 Ohms
Power bandwidth 20 Hz - 20 kHz
Total harmonic distortion 0.2%
Intermodulation distortion 0.2%
Frequency response ± 1 dB 10 Hz - 30 kHz
Total load impedance 8 Ohms
damping factor 30 to 8 Ohms
Phono input sensitivity 2 mV 50 kOhms (max 200 mV)
Mic input sensitivity 4 mV 10 kOhms
Sensitivity of line inputs 100 mV 50 kOhms
50 dB stereo phono input separation
Line input stereo separation 50 dB
Phono input signal noise ratio 70 dB
Line input signal noise ratio 80 dB
Bass tone control ± 10 dB at 50 Hz
Mid tone control ± 5 dB at 1.5 kHz
Treble control ± 10 dB at 10 kHz
Loudness +8 dB a 50 Hz, +6 dB a 10 kHz
Bass filter -10 dB to 50 Hz, 6 dB / oct
Filtro alti -10 dB a 10 kHz, 6 dB/oct
Loudness +10 dB 50 Hz, +8 dB 10 kHz

FM
Frequency 88 - 108 MHz
Sensitivity 1.7 µV
Total harmonic distortion mono 0.3%
Total stereo harmonic distortion 0.2%
Selectivity 85 dB
Capture Ratio 1.5 dB
98 MHz image frequency rejection 75 dB
IF rejection 90 dB
Spurious rejection 90 dB
Stereo separation 40 dB
Frequency response +0.5 -2 dB 30 Hz - 15 kHz
Antenna 300, 75 Ohms

AM
Frequency 535 - 1605 kHz
Sensitivity 50 dB / m
Selectivity 50 dB
Image frequency rejection 80 dB
IF rejection 80 dB