New weather-resistant & high-performance JBL Marine amplifiers deliver impressive power from a compact chassis designed to withstand outdoor environments. Available with 4-channel and 5-channel outputs.
JBL Marine amplifiers incorporate our latest amplifier topology that includes selectable all-, high-, or low-pass crossovers with variable electronic frequency adjustment for precision system tuning. Engineered for harsh marine conditions, with power and performance to meet the needs of any outdoor audio system, JBL Marine amplifiers are the perfect match for all of your JBL marine products.
Features:
- Compact size
- High- and low-level inputs
- Selectable output and variable
- Adjustment crossovers
- Product value
- Cosmetic appeal
- Conformal-coated PCB
- Variable crossovers
- Big dynamic power
| BLA Code | 117390 | 117392 |
| Description | MA704 | MA4505 |
| Total peak power | 1000W | 1800W |
| RMS power @ 4 ohms | 70W x 4 | 45W x 4 320W x 1 |
| RMS power @ 2 ohms | 100W x 4 | 65W x 4 500W x 1 |
| RMS bridged power @ 4 ohms | 200W x 2 | 130W x 2 |
| Frequency response | 10Hz-40kHz | 10Hz-40kHz (full range) 10Hz-320Hz (sub) |
| Maximum signal input | 20V | 20V |
| Maximum sensitivity | 200mV | 200mV |
| Line in signal-to-noise ratio (reference to 1 watt) | ≥85dB | Full:≥85dB Sub:≥80dB |
| THD+N at rated power (@2k Hz-20k Hz) | ≤1% | ≤1% |
| Part Number | Total RMS Power |
|---|---|
| BLA-117390 | 400W |
| BLA-117392 | 750W |
