Marantz 1072 Amplifier
(1978-1980)
Service ManualTECHNICAL SPECIFICATIONS
Power (RMS) 2 X 36w/8 ohms
Power (DIN) 2 X 50w/8 ohms
Power Band: 20Hz/20Khz
Freq response: 15Hz/60kHz +/- 1dB
Harmonic at rated output: 0,05%
Intermodulation distortion: 0,05%
Damping Factor: 45 - 8 ohms
Input Sensitivity Phono MM: 2.0 mV
Input sensitivity Line: 180 mV
Output Impedance: 4 to 16 ohms
Dimensions: 416 x 146 x 240 mm
Weight: 8.0 Kg
| Transistors | Equiv | Other |
| 2SA1039 | 2N3931 | KT667A9 |
| 2SC2390 | 2SC1845 | 2SC2089 |
| 2SC2235 | BCX22-2N2364 | NTE382 |
| 2C1627A | BSW66-2N3700 | KT604A-NTE289 |
| 2SA965 | 2SB789-2N3930 | KT632AB-NTE383 |
| 2SD718 | BD245C-2SC684 | KT819GM |
| 2SB688 | BD246C-2N6030 | KT887AB |
| Diodes | Equiv | Other |
| 1S2471 | NTE519 | |
| 1S2473 | DX0048CE | NTE177 |
| WZ240 | NTE5081A | |
| W06B | NTE116 | |
| WZ071 | NTE138A | |
| Capa µf | Volts | Quantity (35) |
| 6800 | 50 | 2 |
| 470 | 50 | 1 |
| 330 | 6.3 | 3 |
| 100 | 50 | 3 |
| 100 | 35 | 1 |
| 100 | 16 | 3 |
| 100 | 10 | 4 |
| 47 | 50 | 3 |
| 47 | 16 | 1 |
| 47 | 10 | 2 |
| 22 | 10 | 1 |
| 4.7 | 35 | 7 |
| 3.3 | 50 | 1 |
| 2.2 | 50 | 2 |
| 0.47 | 50 | 1 |