| Brand | JBL |
| Trade name | GTO-504E |
| Type | car amplifier |
| Length | 351 mm |
| Width | 264 mm |
| Height | 54 mm |
| Channels | four-channel |
| Maximum power | 280 W |
| Power of channel 1 (4 Ohm) | 55 |
| Power of channel 2 (4 Ohm) | 55 |
| Power of channel 3 (4 Ohm) | 55 |
| Power of channel 4 (4 Ohm) | 55 |
| Ability to work at 2 Ohms | + |
| SNR, however | 105 dB |
| HDF, no more | 0,0002% |
| Built-in crossover | + |
| Frequency range from | 10 Hz |
| Frequency range up to | 100000 Hz |
| Color | black |
| Manufacturer | United States |
| Warranty / Service | 12 months |
| Price per | pcs |