JL Audio MediaMaster 55 Marine Stereo With Full-Colour LCD

Rugged, weather-resistant design is built to withstand the elements
Bright 2.8-inch lcd colour display gives outstanding readability
Onboard amp powers up to 100 watts (25-watt rms x 4) of dazzling sound
Control 3 main audio zones, each with a dedicated subwoofer output
Store up to 18 of your favourite channels across all tuner bands
Certified NMEA 2000 network connectivity for use with multifunction displays

General
Physical dimensions (Height)	95 mm (3.74")
Physical dimensions (Width)	118 mm (4.65")
Physical dimensions (Depth)	93 mm (3.66"))
Dust/Water Rating (when properly installed)	IP67
Operating temperature range	-20° C to + 65° C (-4° F to + 149° F )
Current draw (max)	15 A

Networking
NMEA 2000 LEN	1 (50 mA)
Bluetooth wireless range	Up to 11 metres (35 ft)
Wireless frequencies/protocols	Bluetooth: 2.4GHz@ +14 dBm nominal

Audio
Rated continuous (RMS) power (14.4 V input @ 4 Ohm < 1% THD)	25 W x 4

Electrical features
POWER INPUT	10-16 VDC

Stereo features
Display size	71 mm (2.8")
Display type	Colour TFT LCD, backlit
Display resolution	320 x 240
Optically bonded display	✔
Built-in amplifier	Class-D (2 Ω stereo-stable)
Multi-Zone technology	✔
Bluetooth wireless technology	✔
DAB+	✔
Multi-language interface	English/French/German/Italian/Spanish
Software updates	USB

Sources
Supported sources	Digital AM/FM with RDS/DAB+ (Europe only)/BLUETOOTH®/USB audio/AUX
Supported audio formats (USB)	MP3, MP4, WAV, AAC, M4A, M4B

Connections
Auxiliary inputs (RCA)	1 (2V or 1V RMS Input Sensitivity)
NMEA 2000® ports	1 (Micro-C connector)
USB 2.0 ports	1 USB storage device (1 A charging output)
Antenna ports	1
Speaker connections	4 (2 zones amplified)
RCA pre-out (left, right and subwoofer - requires external amplification)	3 zones
Line out (requires external amplification)	4 (L + R per zone)
Subwoofer out (requires external amplification)	3 (1 mono output per zone)

Powerful Audio Output - The robust audio output options include a built-in 100-watt amplifier (25-watt RMS x 4 channels) plus 9 channels of audiophile-quality preamp outputs from 3 separate audio zones, each with a dedicated subwoofer output.

Three Main Audio Zones - The stereo’s high-fidelity sound is deployed via 3 separate audio zones, each with its own independent control options and subwoofer output, with built-in, selectable low-pass crossover.

Easy To Read Display - The MM55 stereo’s bright 2.8-inch full-colour LCD display features separate day/night themes for clear visibility in all lighting conditions. While in motion, you’ll appreciate the intuitive user interface and oversized, illuminated control knob along with the large backlit buttons. Volume, tone (bass, midrange, treble) and balance can all be adjusted separately or linked with zone 1. Max volume levels can be set for each zone.

Simple Zone Level Control - The RCA zones feature the JL Audio zero-clipping circuit design with self-limiting tone controls to help prevent speaker damage at high listening levels.

Modern Media Connectivity - All the digital and analogue media formats come alive on the MM55 stereo. It includes an AM/FM tuner, Bluetooth connectivity, USB connections with charging for USB drives or iPhone devices plus 2 auxiliary RCA inputs, all designed to ensure nonstop enjoyment of the soundtracks to all your adventures.

Remote Control Options - Wired and wireless remotes (sold separately) are available to add convenient auxiliary control functionality to your MediaMaster stereo. There’s even an app that lets you enjoy untethered control from your compatible smartphone or mobile device.