Premium hidden marine source unit delivering full-featured networked control

The JL Audio MediaMaster® MM55-HR is a high-end, hideaway marine source unit engineered for seamless integration into boats and powersports vehicles. Offering advanced digital media playback, three independent audio zones, and full NMEA 2000® network compatibility, it delivers outstanding versatility and sound quality while staying securely mounted out of sight.

Key Features

• Hidden installation design: Mounts discreetly behind panels or dashboards while external controllers and displays handle all user interaction.
• Three-zone audio control: Independent volume, tone, and subwoofer management across multiple listening zones for precise sound balance.
• Robust connectivity options: Supports Bluetooth streaming with aptX codec, USB playback, AUX input, and AM/FM/DAB+ tuners for versatile media access.
• Network-ready integration: Fully certified for NMEA 2000®, allowing direct control from compatible multi-function marine displays.
• Marine-grade durability: IP67-rated housing ensures complete protection against water immersion and dust, ideal for harsh outdoor conditions.
• High-fidelity output: Features a built-in 100 W amplifier (25 W × 4) and nine-channel 4 V pre-outs for powerful system expansion.
• Optimised for marine environments: Designed to deliver premium sound quality, even in open or noisy areas on deck.

A superior choice for custom installations, this hidden source unit provides full-spectrum sound control, digital connectivity, and marine-certified performance without visible clutter.