| Brand | Blaupunkt |
| Trade name | GTA-475 |
| Type | car amplifier |
| Length | 353 mm |
| Width | 269 mm |
| Height | 53 mm |
| Channels | four-channel |
| Rated power (4 Ohm) | 420 |
| Maximum power | 850 W |
| Power of channel 1 (4 Ohm) | 75 |
| Power of channel 2 (4 Ohm) | 75 |
| Power of channel 3 (4 Ohm) | 75 |
| Power of channel 4 (4 Ohm) | 75 |
| Ability to work at 2 Ohms | + |
| SNR, however | 95 dB |
| High-level input | + |
| Built-in crossover | + |
| Frequency range from | 10 Hz |
| Frequency range up to | 35000 Hz |
| Amplifier class | AB |
| Warranty / Service | 12 months |
| Price per | pcs |
| Brutto, package size | 2,8 kg, 300 / 395 / 100 mm |