Marantz 1090 amplifier
(1977-1980)
Service ManualTECHNICAL SPECIFICATIONS
Power (RMS) 2 X 50w/8 ohms
Power Band: 20Hz/20Khz
Freq response: 10Hz/70kHz
THD: 0,1%
Interm distortion: 0,1%
Damping Factor: 35/8 ohms
Input Sens Phono: 1.8 mV
Input Sens Tuner: 200 mV
Input Sens Aux: 200 mV
Input Sens Tape In: 200 mV
SNR Phono: 78 dB
SNR Aux: 91 dB
SNR Tape: 91 dB
Output Imp: 4/16 ohms
Dimensions: 416 x 146 x 301 mm
Weight: 9.5 Kg
| Transistors | Equiv | Other |
| 2SC1222 | NTE199-BC184L | 2N5210-KT3102A |
| 2SA750 | BC640-NTE234 | 2N5416 |
| 2SC945 | BC407B-BC167B | KSC945-NTE85 |
| 2SC1940 | NTE31-BF422 | KSC2310 |
| 2SC828 | BC547-BC239 | KSC945 |
| 2SA733 | BC557-KSC945 | BC182L-2N3710 |
| 2SD415 | NTE373-BD443A | BD232-KT841A |
| 2SB549 | NTE374-BD380 | 2N4920 |
| 2SD588 | 2SD586-NTE36 | 2SC552-KT812A |
| 2SB618 | BD544D | 2N6228 |
| 2SC1407 | NTE192-BC337A | 2N4410 |