A-422A
| Brand | Altec, Altec Lansing |
| Manufacturer | Altec Lansing Corporation |
| Function | Amplifier, Pre |
| Produced | 1947 |
| Country | United States |
| Model ID | A-422-A |
| Form Factor | 19" Rackmount |
| Signal Path | Analog Hardware |
| Dimensions | 48.3 × 8.9 × 17.8 cm (W × H × D) |
| Weight | 9lbs |
| Power | 6.3VAC 0.3A, 350VDC 4mA |
| Frequency Response | 20Hz-10kHz ±1dB |
| Gain | 24dB |
| Power Output (0.001W) | -4dBm |
| Noise Level (0.001W) | -82dB |
| Input Impedance | 30/50Ω, 250/300Ω, 500/600Ω |
| Load Impedance | 62.5/75Ω, 125/150Ω, 250/300Ω, 500/600Ω |
| Tube Complement | 6J5 |
| MSRP (1947) | $129 |
| Channels | 1 Channel |