| Form Factor | Standard Width |
| Signal Path | Analog Hardware |
| Dimensions | 46.7 × 18.8 × 36.6 cm (W × H × D) |
| Weight | 52lbs (Net), 58lbs (Shipped) |
| Power | 120/240VAC, 50/60Hz 120W 1200W (Max) |
| Frequency Response | 10Hz-40kHz +0/-1dB (1W) |
| Output Power (16/8/4Ω) | 40/75/100W |
| Output Power (Peak, 2.5kHz, 1% THD, 16/8/4Ω) | 45/90/130W |
| THD | 0.25% |
| IMD | 0.25% |
| Power Bandwidth (75W) | 5Hz-50kHz |
| SNR | 95dB |
| Input Sensitivity | 1.0V |
| Input Impedance | 35kΩ |
| Slew Rate | 7V/µs |
| Damping Factor (1kHz) | 80 |
| Damping Factor (10kHz) | 50 |
| Channel Separation (IHF) | 70dB |
| MSRP (1977) | $614 |
| Channels | 4 Channel |
| Connections | - Input · RCA (Phono, Cinch)
- Output · Binding Post (Universal)
|
| Displays | - Analog Meter · Output Level
|
| Notes | QSA-300 with MC-3 meter kit ($125) installed. Internally, essentially two Stereo 150M (Rev. 2) amplifiers on a shared chassis. |
