Sugden Masterclass SPA-4
Sugden Audio Masterclass SPA-4 Stereo Power Amplifier
| Brand | Sugden |
| Model | Masterclass SPA-4 |
| Channels | 2 |
| Power per channel, 8 Ω (W) | 165 |
| Power rated from (Hz) | |
| Power rated to (Hz) | |
| Power rated at THD (%) | |
| Power rated with channels driven | 2 |
| Power per channel, 4 Ω (W) | 75 |
| Bridged power, 8 Ω (W) | |
| Frequency response | 15 Hz – 30000 Hz |
| Total harmonic distortion (%) | |
| Signal-to-noise ratio (dB) | 85 |
| Damping factor | |
| Input impedance (Ω) | |
| Gain (dB) | |
| Height (mm) | 250 |
| Width (mm) | 430 |
| Depth (mm) | 350 |
| Weight (kg) |