JL Audio MediaMaster Premium Compact Marine Source Unit - MM55

MediaMaster 55 is a premium, compact marine source unit engineered to deliver high-fidelity sound and advanced audio features for all your maritime adventures.

Constructed with a tough, water-resistant (IP67-rated) design, this single-chassis receiver features a bright 2.8" (71 mm) full-color display and an intuitive interface with backlit controls for easy operation day or night. A variety of source and media options are on board for uninterrupted listening of your favorite stations and playlists, including global radio tuners, a USB input, analog AUX input, and streaming audio capabilities, courtesy of Bluetooth® wireless technology.

Audio output options include a robust 4-channel onboard amplifier, capable of powering your speakers with 100W (25W RMS x 4) of pure sonic delight. Nine channels of audiophile-quality preamp outputs from three separate audio zones are also included, each with a dedicated subwoofer output. Each zone includes an array of flexible audio options and is controlled by a configurable master volume knob for quick, on-the-fly adjustments, allowing complete command over different areas of your boat.

The MediaMaster 55 marine source unit also includes certified NMEA 2000® network connectivity, making it an ideal companion for use with your Garmin, Lowrance, Raymarine, or Simrad multifunction display (MFD).

Features:

• Engineered for Real-World Marine Duty
  • Rugged (IP67-rated) design to withstand the elements, with all buttons sealed behind a watertight membrane
  • Bright and easy-to-read 2.8" (71 mm) full-color LCD with a high-contrast design for enhanced viewing while in motion
  • Intuitive interface with backlit controls for easy operation day or night
  • Independent settings for day and night lighting with separate brightness controls for the display, buttons, and optional wired remotes
• Comprehensive Marine Audio System Capabilities
  • Nine channels of audiophile-quality preamp outputs (4V RMS) from three separate audio zones, each with a dedicated subwoofer output
  • Independent feature and control options for each audio zone:
  • Volume level: adjust all zones together or select an individual zone for discrete adjustment
  • Subwoofer level: dedicated button to adjust all subwoofer zone trim levels together or select an individual zone for discrete adjustment
  • Onboard crossovers: each zone is equipped with separate filters for high pass (off/80/100/120 Hz) and low pass (off/60/80/100 Hz)
  • Volume limit: set a maximum allowable volume level for each zone
  • Tone controls: adjust the bass, midrange, treble, and balance settings
  • Zone naming: customize each zone's designation for easy identification
  • The built-in amplifier generates 100W (25W x 4) of high-fidelity sound for zones 1 and 2
• Built for Today's Modern Media
  • Digital AM/FM radio tuner with radio data system extended display info
  • Built-in DAB+ radio (Europe) tuner (subject to local availability)
  • Store up to 18 favorite stations (across all tuners) for quick selection
  • Stream audio with Bluetooth wireless technology and the Qualcomm® aptX™ audio codec for amazing audio fidelity with compatible devices
  • USB 2.0 direct-digital connections can access music files on your USB storage device with a 1 amp charging output
  • Auxiliary inputs accept analog audio signals directly from external sources
  • NMEA 2000 network-certified: MFD control functionality uses applicable network cables and connectors (sold separately)

Owners Manual (8.26 MB)