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JL Audio MM55
Upgrade Your Vehicle With Confidence. This Is Built to Fit, Perform, and Last
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 |
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
- Ships within 1–3 business days from our warehouse
- Tracking included with every order
- Free 30-day returns if it doesn’t work for your setup
- 2-year manufacturer warranty
- Authorized dealer guarantee
- Real installer-backed support before and after purchase

Why This Upgrade Makes Daily Driving Better
Ease of Use & Safety
Expandable by Design
FITMENT & INSTALLATION MADE SIMPLE
WHAT VEHICLES IT WORKS WITH
We verify compatibility before you buy, no guesswork.
DIY FRIENDLY IF:
- You're comfortable with basic tools
- You follow provided instructions
PROFESSIONAL INSTALL RECOMMENDED IF:
- Your vehicle requires dash kits or wiring adapters
- You want a turnkey experience
INSTALLATION CREDIT & SUPPORT:
- $75 Installation Credit when purchased online
- Speak to real installers before you buy
- Bring it into one of our locations for install
Why Buying This Here Is Safer Than Anywhere Else
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Verified Vehicle Fit
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Installer Support
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Authorized Products
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Easy Returns
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Physical stores & real installers
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FREQUENTLY ASKED QUESTIONS
FREQUENTLY ASKED QUESTIONS
How do I know this stereo or speaker will fit my car?
Select your year, make, and model using the Vehicle Fit Guide at the top of the page. You’ll only see products that are compatible with your exact vehicle setup.
What happens if I order something that doesn’t fit?
You can return or exchange it within 30 days. We’ll help you identify the correct part for your vehicle so you don’t have to guess again.
Are these products brand new and covered by warranty?
Yes — all products are brand new, authentic, and sold as an authorized dealer, which means they include a full manufacturer warranty.
Can you install this for me, or do I need to do it myself?
You can do either. Install it yourself, or use your $75 installation credit at our shop and have it professionally installed by our team.
What if I don’t know what to choose for my car?
Tell us your vehicle and what you want to improve (sound, bass, CarPlay, etc.). We’ll recommend the exact products that fit your car and your budget.
