JL Audio MM55
Media Master Marine Digital Media Receiver with Bluetooth (no CDs)
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Command Your Marine Audio – JL Audio MM55 MediaMaster® Marine Source Unit
The JL Audio MM55 is a powerhouse marine digital media receiver designed to elevate your on-water audio experience with unmatched clarity, control, and durability. Built for boats and rugged outdoor environments, the MM55 delivers precise audio control across multiple zones, robust output, and seamless Bluetooth streaming, all wrapped in a compact, weatherproof package. With JL Audio’s legendary marine-grade reliability and clean interface, it’s the perfect foundation for any premium marine sound system.
Key Features
| Category | Description |
|---|---|
| Marine-Grade Media Receiver | Designed for harsh marine environments with IP67 weather resistance |
| Multi-Zone Audio Control | 3 zones with separate subwoofer outputs and tone controls |
| Bluetooth® Audio Streaming | High-quality wireless connection to mobile devices |
| Auxiliary and Line Inputs | Supports a variety of media sources |
| Color LCD Display | High-contrast, sunlight-readable screen for easy viewing |
| Full-Range Preamp Outputs | Ideal for powering external amplifiers with clean signal |
| Compact Mounting Footprint | Perfect for boats of all sizes and layouts |
| Simple, Intuitive Interface | Effortless control over sources, volume, tone, and zones |
All-in-One Marine Audio Control
- ✔ Combines source, zone, and tone management in one compact unit
- ✔ Supports AM/FM radio, Bluetooth®, and auxiliary sources
- ✔ Streamlined controls and interface ideal for boaters on the move
Multi-Zone Mastery
- ✔ Three independent audio zones with adjustable tone and source
- ✔ Dedicated subwoofer outputs for each zone
- ✔ Create unique soundscapes in different areas of your boat
High-Performance Audio with Clean Output
- ✔ Preamp outputs for clean signal to JL Audio marine amplifiers
- ✔ Audiophile-grade components ensure distortion-free playback
- ✔ Supports loud, clear sound at any cruising speed
Bluetooth® Streaming with Low Latency
- ✔ Wirelessly play music from smartphones or tablets
- ✔ Reliable, low-latency connection with no cables needed
- ✔ Guests can take turns playing music effortlessly
Sunlight-Readable Display and Durable Design
- ✔ Bright 2.8" LCD screen readable in direct sunlight
- ✔ IP67-rated against water, dust, and UV rays
- ✔ Engineered for years of trouble-free marine use
Compact Size, Big Capability
- ✔ Small footprint fits tight dashboards and helm spaces
- ✔ Full-function interface offers deep customization without clutter
- ✔ Great for both retrofits and new installations
Why Choose the JL Audio MM55?
If you're looking to elevate your marine audio system with control, clarity, and customization — the JL Audio MM55 delivers. With advanced zone management, Bluetooth streaming, and a sleek marine-proof design, it brings premium sound and functionality to any boat. Whether you're hosting a party on deck or relaxing in the cabin, this unit gives you the tools to shape your sound exactly how you want it.
What’s in the Box?
- 1 x JL Audio MM55 Marine Source Unit
- 1 x Trim Ring and Mounting Gasket
- 1 x Mounting Hardware Kit
- 1 x User Manual
- JL Audio Decal
Specifications
| Specification | Details |
|---|---|
| Display | 2.8” Full-Color LCD (Sunlight-readable) |
| Zones | 3 Independent Zones w/ subwoofer outputs |
| Output Type | Full-range preamp (RCA) for all zones |
| Weather Rating | IP67 Water and Dust Resistant |
| Connectivity | Bluetooth®, Aux Input, Line Input |
| Mounting Dimensions (Cutout) | 3.15" (H) x 3.74" (W) |
| Power Requirements | 12V DC system |
| Manufacturing | Made in the USA |
Frequently Asked Questions (FAQ)
| Q: Does the MM55 have built-in amplification? | A: No, it is a source unit with preamp outputs — designed to be paired with external marine amplifiers. |
| Q: Can I stream music via Bluetooth®? | A: Yes, it includes built-in Bluetooth® streaming, allowing wireless music playback from your phone or tablet. |
| Q: Is this unit waterproof? | A: Yes, the MM55 is IP67 rated, making it highly resistant to water, salt, UV rays, and dust — ideal for marine use. |
| Q: How many zones does the MM55 support? | A: It supports three independent zones, each with its own subwoofer control and tone settings. |
| Q: Can I control the MM55 through a multi-function display? | A: The MM55 is a standalone unit and does not feature NMEA 2000 integration like some higher-end models. |
| Q: Does it support USB or SD cards? | A: No, this model is designed for Bluetooth® and auxiliary line input, keeping things simple and reliable on the water. |
Take Full Control of Your Marine Sound – Upgrade to the JL Audio MM55 Today
With multi-zone control, Bluetooth® streaming, and a rugged IP67 rating, the MM55 is the compact powerhouse your boat’s audio system needs.
FAQ
Do products purchased from San Diego Car Stereo come with a warranty?
Yes, all products come with a 1-year manufacturer warranty unless otherwise stated. This covers any defects excluding physical damage.
Are these products brand new?
Yes, every product we sell is 100% brand new, unused, and comes in original manufacturer packaging unless clearly marked otherwise.
Do you offer installation services?
Yes, we offer professional installation services at both of our San Diego Car Stereo locations. Our expert technicians have over 50 years of combined experience to install all of your car, marine, or offroad audio needs. Stop by or give us a call to schedule an appointment to get a quote in person.