JL Audio MediaMaster MM55 Weatherproof Marine Stereo with Full-Color LCD and Built-In Amplifier (010-03365-00)

The MediaMaster MM55 combines a full-color display and onboard power amplification in a weatherproof marine stereo, offering a streamlined source-unit solution for boats and powersports applications. Unlike the MM105, the MM55 includes built-in speaker power.

Key Features

• Built-in amplification for direct speaker connections
• Full-color LCD control interface
• Weatherproof construction
• Marine entertainment source unit

Detailed Technical Specifications

• Display: 2.8" full-color LCD with day/night modes
• Integrated Amplification: 25W RMS x 4 @ 4 ohms (50W peak x 4)
• Audio Zones: 3, each with independent subwoofer output
• Preamp Outputs: 9 channels, 4V RMS (three L/R/sub groups)
• Radio: AM/FM/DAB+ tuner with RDS and 18 presets; broadcast availability varies
• Bluetooth Audio: Supported, including aptX
• USB Connection: Rear USB input, up to 1A device charging
• Auxiliary Input: Rear stereo RCA
• Network: NMEA 2000 certified
• Weather Rating: IP67
• Panel Cutout: 3.665" W x 3.045" H
• Warranty: 2 years

Compatibility & Installation

Verify actual speaker output ratings and source connections against your selected MM55 installation manual; wiring needs differ from the unamplified MM105.

What's in the Box

• MediaMaster MM55 receiver with 15A fuse
• Trim ring (installed)
• Power harness
• Speaker harness
• Self-adhesive gasket
• Four mounting screws
• Rubber face cover
• Cardboard cutout template
• Owner’s manual
• Warranty information