9477A
| Brand | Altec Lansing, Altec |
| Function | Amplifier, Power |
| Produced | 1972 |
| Country | United States |
| Form Factor | 19" Rackmount |
| Signal Path | Analog Hardware |
| Dimensions | 48.3 × 17.8 × 21.6 cm (W × H × D) |
| Weight | 37lbs |
| Power | 120/240VAC, 50/60Hz or 28VDC |
| Frequency Response | 20Hz-20kHz ±0.5dB |
| Output Power (0.5% THD) | 85W |
| Output Power (1% THD) | 100W |
| Input Sensitivity | 0.8V |
| Load Impedance | 4/8/16Ω |
| Load Voltage | 20/28/40V |
| Noise Level | -45dBm |
| SNR | 95dB |
| MSRP (1972) | $450 |