SKU: 39182118039

JL Audio MediaMaster 55 Weatherproof Source unit

Sale price$171.45 Regular price$190.50
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Description

JL Audio MediaMaster 55 Weatherproof Source unitJL Audio MediaMaster 55 Weatherproof Source unit JL Audio MediaMaster 55 Premium, Compact Marine Source Unit with Full color LCD Model: MM55 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

JL Audio MediaMaster 55 Weatherproof Source unit

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

Model: MM55

  • 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

  • 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:

  • Built-in amplifier generates 100 watts (25 watts x 4) of high-fidelity sound for zones 1 and 2

  • 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)

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).

Specifications

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)

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
1 A

Physical

Width
4.65 in / 118 mm

Height
3.74 in / 95 mm

Depth
3.66 in / 93 mm


What's in the Box:


  • MM55 MediaMaster

  • Flush Mount Gasket

  • Flush Mount Template

  • Sun Cover

  • Powercord

  • #8 x 1in Screw x 4

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 39182118039

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Brianna coleman
Belleville, US
★★★★★ 5
Worth Every Penny for Workouts & Daily Walks
Size: 12lb, Color: Black, Size: 12lb, Color: Black
I’ve been using this weighted vest for my workouts and even during daily walks, and it has made such a difference. The weight feels evenly distributed, so it’s comfortable to wear without putting too much strain on my shoulders or back. I love that it adds an extra challenge to simple workouts without needing extra equipment. The straps are adjustable, which helped me get a secure fit, and the material feels durable and well made. As a busy mom always trying to squeeze in movement wherever I can, this vest helps me make even short workouts feel more effective. Definitely a great addition to my fitness routine!
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Reviewed in the United States on May 22, 2026
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Anne L
Cuba, US
★★★★★ 5
Comfortable, Secure Fit for Everyday Workouts
Size: 8lb, Color: Black
Really impressed with the quality and comfort of this weighted vest. It fits securely without shifting during workouts and feels well balanced. Great for walking, strength training, or adding intensity to everyday movement. Durable material and easy to adjust—definitely a solid fitness upgrade.
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Reviewed in the United States on May 3, 2026
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Lauren
West Palm Beach, US
★★★★★ 5
LOVE
Size: 12lb, Color: Black
The ZELUS weighted vest is a solid addition to any workout routine, whether you’re walking, running, or doing strength training. It feels well-balanced when worn, and the weight is distributed evenly so it doesn’t feel awkward or shift too much during movement. The material is durable and holds up well during regular use, and the adjustable straps make it easy to get a secure, comfortable fit for different body types. I also like the reflective stripe—it’s a great safety feature for outdoor workouts, especially in low light. It adds just the right amount of resistance without feeling overly bulky, which makes it great for increasing workout intensity gradually. The vest stays in place pretty well once adjusted, and it doesn’t restrict movement too much. Overall, this is a practical and effective weighted vest that’s comfortable enough for consistent use. A great option for anyone looking to level up their cardio or strength training.
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Reviewed in the United States on April 16, 2026
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Brainfleek
Birmingham, US
★★★★★ 4
Doesn’t look like a tactical vest
Size: 20lb, Color: Black
Affordable and easy to wear for a nice rucking session around my city neighborhood. Strap design fits comfortably around my shoulder. Tends to rub my traps after a long session, but that could be due to posture. Clips securely but straps are too long. Fits under hoodie very nicely.
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Reviewed in the United States on April 10, 2026
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Ariel Lopez
Dallas, US
★★★★★ 5
Solid and comfortable vest
Size: 30lb, Color: Black
This vest is solid. Fits good, feels strong, and the weight sits right without being annoying. I like it for workouts because it adds that extra push without making it uncomfortable. Definitely worth it.
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Reviewed in the United States on May 22, 2026

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