| Model | SA-550 |
| Year | 84 |
| Watts rms | 70 |
| Harmonic distortion | 0.005 |
| IM distortion | 0.005 |
| Power bandwidth | 20-20 |
| Phono s/n ratio | 75 |
| Mono sensitivity | 10.8 |
| Capture ratio | 1.0 |
| Mono signal strength | 16.1 |
| Stereo signal strength | 38.3 |
| FM distortion | 0.08/0.2 |
| IF wide/narrow | 70 |
| FM s/n ratio | 72 |
| Weight | 19 |
| Price | 450.00 |