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JL Audio

JL Audio® MediaMaster® Marine Digital Media Source /unit with Bluetooth (MM55-HR)

JL Audio® MediaMaster® Marine Digital Media Source /unit with Bluetooth (MM55-HR)

Regular price $379.99
Regular price $0.00 Sale price $379.99
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Delivery Times

  • All Orders typically take 3-5 business days to arrive. (unless noted otherwise in the Product's Description)
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  • Suncoast honors a 30-day return policy for unused items in their original packaging with proof of purchase.
  • If your item doesn't meet your expectations, please contact us to initiate a return or exchange.
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  • Refunds are processed within 10 business days after approval, payment processing fees are non-refundable.

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Product Description

MM55-HR Premium Hidden Marine Source Unit with Built-In Amplifier (010-03372-00)

Experience next-level marine entertainment with the JL Audio® MediaMaster® MM55-HR, a premium hidden marine source unit designed for seamless integration and superior sound quality. Engineered for high-performance vessels, this NMEA 2000®-certified receiver connects effortlessly to compatible Garmin, Raymarine, Lowrance, and Simrad MFDs or the JL Audio MMR-40 network controller (sold separately), giving you full audio control right from your helm.

Powered by a built-in 100-watt amplifier (25W RMS x 4), the MM55-HR delivers rich, distortion-free sound across multiple zones. With nine channels of audiophile-quality preamp outputs, each with dedicated subwoofer control, you can fine-tune sound performance for different areas of your boat.

Enjoy complete connectivity with Bluetooth® aptX™ streaming, USB input with device charging, and AUX input for direct playback. The unit’s digital AM/FM and DAB+ tuners ensure reliable radio access wherever you cruise. Built to thrive in harsh marine conditions, its IP67-rated, weather-resistant design guarantees years of reliable performance.

Features:

  • Hidden marine source unit with built-in 4-channel amplifier (100W total output)
  • NMEA 2000® Certified – integrates with Garmin, Simrad, Lowrance, and Raymarine MFDs
  • 9-channel preamp outputs with 3 independent audio zones and subwoofer control
  • Bluetooth® with Qualcomm® aptX™ for high-quality wireless streaming
  • USB and AUX inputs for multiple media playback options
  • Digital AM/FM/DAB+ tuner with 18 preset stations
  • Intuitive zone management: volume, tone, subwoofer, crossover, and naming control
  • Rugged IP67-rated marine-grade construction for real-world durability
  • Compatible with JL Audio remotes: MMR-40, MMR-25W, MMR-20-BE, and MMR-5N2K (sold separately)

Details:

  • Hideaway marine/powersports digital media source unit
  • Requires JL Audio's MMR-40 network remote controller (sold separately) for full functionality
  • AM/FM/DAB+ tuner with RDS and 18 presets
  • Built-in amplifier (25 watts RMS/50 peak x 4 channels)
  • Control three separate audio zones (each with individual subwoofer channels)
  • Built-in Bluetooth® connectivity with aptX for music streaming

Expandability:

  • USB input — 1 amp output also charges your device while it's in use
  • Auxiliary RCA stereo input works with a variety of devices
  • 9-channel preamp outputs (3 separate zones possible; 4-volt front, rear, and sub for each zone)
  • NMEA 2000® Certified
    • compatible with multi-function display units from Garmin, Simrad, Lowrance, or Raymarine
  • Works with JL Audio MediaMaster remotes (sold separately)

Additional Info:

  • Weatherproof IP67-rated design and construction
  • Dimensions: 7.68"W x 2.28"H x 4.96"D

What's in the box:

  • Hide-away marine source unit
  • Wiring harness
  • 4 Screws
  • Owner's Manual
  • Warranty: 2 years

Why Choose the JL Audio MM55-HR?

Perfect for boaters who demand premium sound in a clean, concealed setup, the MM55-HR brings unmatched audio flexibility and control to your marine environment. Whether you’re upgrading your wake boat or fishing vessel, this hideaway powerhouse delivers JL Audio’s legendary clarity and reliability.

Owner's Manual (pdf)

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Top Testimonials

''Awesome discounts on fishing reels and GPSs. Plus they have next day shipping. The convenience of online shopping is awesome, especially since it's getting harder to get around in store.
They made sure I got the electronics I needed and all the hardware for the install. They even do repair and installs, so I ended up hiring them for the work I needed done on my Mercury. Awesome experience.''

JAMES

"Great experience! I Was looking to purchase a head gaskets for my Johnson 150 hp outboard motor. Mike & Ashley researched parts I needed and come to find out they turned me on to my outboard engine used O-Rings to reassemble my head covers and provided me with parts and torque specs! Thanks! 100% positive feedback and Recommend this Family Business if you need Marine Supplies."

SCOTT

Family owned and operated, which is a huge plus for me! I was browsing the website looking at Garmin gps units, their prices are great and competitive! I reached out to them to ask where I might find a hard to find lower unit part I was needing. They had it in stock! If they don’t have something in stock, they will get it asap! 100% recommend and I will buy from them again in the future!

MATT