SKU: 35937840803

Jl Audio Mediamaster 55 Weatherproof Hidden Source Unit

$151.65 $168.50
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Ships within 48 hours · Estimated delivery Sep 9 - Sep 14

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Description

Jl Audio Mediamaster 55 Weatherproof Hidden Source UnitJL Audio MM55 HR Premium, Hidden Marine Source Unit with Built in Amplifier Model: MM55 HR Tough, water resistant (IP67 rated) design and construction to withstand the elements Intuitive interface for easy operation while docked or underway Nine channels of audiophile quality preamp outputs (4 volt RMS) from three separate audio zones, each with a dedicated subwoofer output Built in amplifier generates 100 watts (25 watts x 4) of high fidelity sound

JL Audio MM55-HR Premium, Hidden Marine Source Unit with Built-in Amplifier

Model: MM55-HR
  • Tough, water-resistant (IP67-rated) design and construction to withstand the elements
  • Intuitive interface for easy operation while docked or underway
  • Nine channels of audiophile-quality preamp outputs (4-volt RMS) from three separate audio zones, each with a dedicated subwoofer output
  • 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)

Engineered to deliver superb sonic excellence from integrated vessel applications, MediaMaster 55-HR is a premium hideaway receiver with all the features of the MediaMaster 55 source unit, less the physical controls and display screen. Outfitted with certified NMEA 2000® network connectivity, the MediaMaster 55-HR hideaway receiver can be controlled by your Garmin, Lowrance, Raymarine or Simrad multifunction Display (MFD) or a JL Audio MMR-40 network controller (sold separately).

For uninterrupted enjoyment of your favorite stations and soundtracks, a variety of source and media options are on hand, 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-watt 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 for quick, on-the-fly adjustments, allowing complete command over different areas of your boat.

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)
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
Supported Audio Formats MP3, MP4, WAV, AAC, M4A, M4B
Physical Specifications
Width 7.68 in / 195 mm
Depth 4.96 in / 126 mm
Height 2.28 in / 58 mm

What's in the Box:
  • MM55-HR Mediamaster
  • Powercord
  • #8 x 1 in 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: 35937840803

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4.1 ★★★★★
Based on 14 reviews
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Verified Purchase
Jeff S.
Lake Worth, US
★★★★★ 5
Compact, incredibly absorbent, and a travel essential.
Color: Gray, Size: 48.00" x 24.00"
The Rainleaf microfiber towel has been a fantastic addition to my gear. It’s remarkably compact and lightweight, which makes it perfect for tossing into a gym bag or packing for trips without taking up unnecessary space. Despite its size, it’s surprisingly super absorbent and dries much faster than a standard cotton towel, which is a huge plus when you're on the move. It’s well-made, feels durable, and is definitely a must-have for anyone who travels, camps, or hits the gym regularly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
C
Verified Purchase
CALI GDOG
Port Orchard, US
★★★★★ 5
Great Travel Towel !!
Color: Mint Color, Size: 72.00" x 40.00"
I travel for work. The last few years I've noticed the quality of hotel towels has gone downhill. I suspect that they are not replacing them as often to save money. So not only are hotel towels too small, they are thread bare, thin and scratchy. So I thought about bringing my own towel, but, it's not practical as they are heavy and bulky to pack, and they take a long time to dry. This Rainleaf Microfiber towel is the answer to my prayers. I bought the big one, 70 X 40. I tested it at home. It is kinda strange to dry off with it because it's different. Not bad, just different. It smooth but not soft and fuzzy like a cotton towel. BUT, it dries amazingly well. It doesn't even get that wet. It's more like patting dry then rubbing you dry, it you know what I mean. Once you get used to it, it works great. Even though is it huge at 70" X 40", it weighs less than 1 pound. Super small and great for packing. Corner pocket would be good at the beach for keeping valuables out of sight. It's my new go-to hotel towel. I may even bring it on my cruise !
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
T
Verified Purchase
Tomsprincess
Grantham, US
★★★★★ 5
Dries quickly and very portable
Color: Violet, Size: 72.00" x 40.00"
Dries you off quickly, is light weight, and very portable. I bought this to use for the gym, where we’ve been having to shower (instead of at home) as our water heater has gone out. Until we get it replaced we’ve been having to use the shower at the gym after our workout. I wanted a towel that would also be good for taking to the pool when I lap swim. This fits the bill. It dried me super quickly (less than 1 min I was fully dry). It didn’t weigh the towel down either. I got the extra large one, and I am 5’6” and it was plenty big to wrap around me while I was walking around to get dressed. It’s super easy to tie using the corners and it will stay put on you. I really like this. I will likely buy a few more in smaller sizes to use for hair, kids, pets, etc. it’s really good for the gym, showering on the go, and the pool so you can dry faster. I plan on using the smaller ones also for taking on a run in the hot Florida summer to keep the sweat from dripping. It doesn’t seem to have an odor, and time will tell if the towel’s silver ion feature works well, but this was worth the price in my mind.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 25, 2026
D
Verified Purchase
daveofl
Omaha, US
★★★★★ 4
Very compact, yet absorbent
Color: Navy Blue, Size: 48.00" x 24.00"
This is a unique kind of towel that has very little volume and rolls up to a tiny size. It would be great for a camping trip, or any situation where size is important. It's also surprisingly absorbent, considering how thin it is. I use it for toweling off after taking a shower at the gym. I should also mention that it dries very quickly. The only thing I don't like about it is that it is kind of "sticky" when you're running it across your body. That takes some getting used to.
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Reviewed in the United States on March 9, 2026
D
Verified Purchase
dancing fiend
Lexington, US
★★★★★ 5
Great quality, and great performance!
Color: Purple, Size: 48.00" x 24.00"
Got this to take on a camping road trip where we camped at three different locations all around Arizona. Needed something that would dry quick, but also be absorbent to dry me off, and this exceeded my expectations. It’s a really nice brushed, cotton kind of feel, but dries quickly. Next time I will order a larger size though. I’ve had this one for a couple years.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026

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