| Model ID | ST-150M/A |
| Signal Path | Analog Hardware |
| Dimensions | 36.8 × 16.8 × 34.9 cm (W × H × D) |
| Power | 120/240VAC, 50/60Hz 60W 600W (Max) |
| Frequency Response | 10Hz-40kHz +0/-1dB (1W), 20Hz-20kHz ±0.5dB (75W) |
| Output Power (16/8Ω) | 40/75W |
| Output Power (FTC, 16/8/4Ω) | 40/75/100W |
| Output Power (Mono, Bridged, 8Ω) | 150W |
| Output Power (Peak, 2.5kHz, Single Channel, 1% THD, 16/8/4Ω) | 45/90/130W |
| Power Bandwidth (37.5W, 0.25% THD, 8Ω) | 5Hz-40kHz |
| THD | 0.25% |
| IMD | 0.15% |
| SNR | 95dB |
| Input Sensitivity | 1.0V |
| Input Impedance | 35kΩ |
| Slew Rate | 5V/µs |
| Damping Factor (1kHz) | 80 |
| Damping Factor (10kHz) | 50 |
| Channel Separation (IHF) | 70dB |
| Channels | 2 Channel |
| Connections | - Input · RCA (Phono, Cinch)
- Output · Binding Post
|
| Displays | - Analog Meter · Output Level
|
| Notes | Early production Stereo 150 with PC-36 output board. Stereo 150 with output meters added with MC-2 meter kit ($85). |
