MM55
Premium, Compact Marine Source Unit with Full-color LCD

 

 

MediaMaster® 55 from JL Audio® – Premium, Compact Marine Source Unit with Full-color LCD

 

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-inch (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 100 watts (25-watts 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-inch (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 (4-volt 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
• Built-in amplifier generates 100 watts (25 watts 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 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)

 

Remote Controller and Interface Accessories (Each Sold Separately):

• MMR-40 network controller: full-function water-resistant (IP66-rated) controller with full-color LCD (NMEA 2000 network)
• MMR-25W wireless controller: water-resistant (IP68-rated) controller with BLUETOOTH wireless technology 
• MMR-20-BE wired remote controller: water-resistant  (IP67-rated) controller (direct connection)
• MMR-5N2K network volume controller: water-resistant (IPX7-rated) controller
• MMA-1-HTML MFD data interface: digital interface generates themed navigation and controls onto your MFD (NMEA 2000 network)
• MM-Remote controller application: free, full-function application controller uses your compatible wireless device; available for free download (see here)

 

 

General Specifications

 

Input Operating Voltage	10 - 16 VDC
Standby Current Draw	100 mA
Operating Current Draw	15 A
Recommended Fuse Value	15 A
Remote Turn-on Capacity	500 mA (max)
Operating Temperature Range	-4 F to +149 F (-20 C to +65 C)
Display Size / Type	2.8" / TFT LCD backlighted
Display Resolution	320 x 240
Output Channels	One stereo pair and mono subwoofer RCA plugs per zone
Output Zones	Relative, Absolute, Fixed or Off
Maximum Output Voltage	4V RMS (Relative or Absolute), Selectable 4V/2V/1V RMS (Fixed)

 

 

Connectivity

 

Tuner
FM Tuner with RDS	87.5 MHz to 107.9 MHz (0.2 MHz step)
AM Tuner	530 kHz to 1710 kHz (10 kHz step)
DAB+ Tuner	170 MHz to 230 MHz
Favorites	18 presets across all tuners
Bluetooth®
Profile	A2DP v1.2, AVRCP v1.4
Core Specification	Version 2.1 + EDR
Codec	SBC, Qualcomm® aptX™ audio
Connection Range	Up to 35' (11 m)
USB
Interface	USB 2.0 host
Maximum Current Output	1A
Supported Audio Formats	MP3, MP4, WAV, AAC, M4A, M4B

 

 Dimensions

 

Height (H)	3.74 in / 95 mm
Width (W)	4.65 in / 118 mm
Depth (D1)	2.36 in / 60 mm
Depth (D2)	3.66 in / 93 mm
Mounting Hole Height (A)	3.15 in / 80 mm
Mounting Hole Width (B)	3.74 in / 95 mm

 

 

 

 

• MM55_Manual.pdf