JL AUDIO MM55HR Premium Hidden Marine Source Unit with Built-in Amplifier
The JL AUDIO MM55HR is a premium hidden marine source unit featuring a built-in amplifier with a power output of 4 x 50 W RMS. This unit is engineered for marine audio applications, providing high-quality sound while maintaining a compact footprint for installation.
Compatibility & Applications
- Fits in dashboards of boats and yachts up to 30 ft.
- Pairs with JL AUDIO amplifiers for enhanced audio performance.
- Integrates with NMEA 2000 systems for streamlined connectivity.
- Replaces older marine source units without requiring additional mounting.
- Mounts securely in helm stations and under-console locations.
- Wires to 12V DC bus systems for efficient power distribution.
The unit delivers powerful audio in marine environments, making it a drop-in replacement for outdated systems like the Sony DSX-M55BT. Its IP66 rating ensures durability against water and dust ingress, which allows for long-term use in harsh conditions.







