








JL Audio MX500/4
Compact Marine/Powersports 500 Watt 4-Channel Amplifier
Enjoy a complimentary $75 Installation credit on all Online Orders. Limit one per customer. Terms and Conditions apply.
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Enhance your marine audio experience with the JL Audio MX500/4 4-Channel Marine Amplifier. Designed for superior sound clarity and high performance in marine environments, this amplifier delivers exceptional audio on your boat. Whether you’re cruising, fishing, or enjoying a water party, the JL Audio MX500/4 will elevate your marine audio system to new heights.
Key Features:
| Feature | Description |
|---|---|
| 4-Channel Amplifier | Provides ample power for multiple speakers and subwoofers. |
| Class D Amplifier Technology | Ensures efficient power usage and superior sound quality for your marine audio system. |
| Power Output | 70W RMS x 4 channels at 4 ohms, 125W RMS x 4 channels at 2 ohms, 250W RMS x 2 bridged channels at 4 ohms. |
| Differential-Balanced Inputs | Reduces noise and distortion for clearer and more accurate sound. |
| Advanced Rollback Protection | Prevents overheating and protects the amplifier in extreme conditions. |
Key Purchase Information:
| Specification | Details |
|---|---|
| Power Output | 70W RMS x 4 channels at 4 ohms, 125W RMS x 4 channels at 2 ohms, 250W RMS x 2 bridged channels at 4 ohms |
| Frequency Response | 12Hz-22kHz |
| Signal-to-Noise Ratio | >95 dB |
| Total Harmonic Distortion | <1% |
| Input Sensitivity | 200mV-8V |
| Dimensions | 8.66 x 6.96 x 2.05 inches |
| Compatibility | Universal |
| Materials | Marine-grade construction for durability and longevity. |
| Included Accessories | Wiring Harness, Mounting Hardware, User Manual |
| Installation Notes | Easy to install with included hardware and wiring options. Compatible with most marine audio systems. |
What's in the Box:
- JL Audio MX500/4 Amplifier
- Wiring Harness
- Mounting Hardware
- User Manual

JL Audio MX500/4 MX Series 4-Channel 125W RMS x 4 at 2 Ohms, Class-D Marine Amplifier
We are a JL Audio authorized dealer. All products are fully warrantied and include free shipping within the lower 48 states. Enhance your marine audio experience with the JL Audio MX500/4 4-Channel Marine Amplifier. Designed for superior sound clarity and high performance in marine environments, this amplifier delivers exceptional audio on your boat. Whether you’re cruising, fishing, or enjoying a water party, the JL Audio MX500/4 will elevate your marine audio system to new heights.
Key Features
- 4-Channel Amplifier: Provides ample power for multiple speakers and subwoofers.
- Class D Amplifier Technology: Ensures efficient power usage and superior sound quality for your marine audio system.
- Power Output: 70W RMS x 4 channels at 4 ohms, 125W RMS x 4 channels at 2 ohms, 250W RMS x 2 bridged channels at 4 ohms.
- Differential-Balanced Inputs: Reduces noise and distortion for clearer and more accurate sound.
- Advanced Rollback Protection: Prevents overheating and protects the amplifier in extreme conditions.
What's Inside?
- JL Audio MX500/4 Amplifier
- Wiring Harness
- Mounting Hardware
- User Manual
What Others Are Saying
Eddie was great - SDCS installed a new head unit in my 2019 4Runner. He was honest in his opinions regarding the options I was considering. Pricing was also good - he was able to reuse some of my existing installation kit so I saved a bit of $$.Installation was clean and fast and he took the time to walk through the features before I left. Highly recommend!!
I had a great time at this shop! The staff really knows their stuff and took the time to explain the different options without pressure. Installation was quick, clean and professional. Everything looks factory and sounds amazing. The prices were fair and customer service was above and beyond. I highly recommend this place if you're looking for quality car audio and excellent service.
Those guys are really professional! I had a new Alpine floating head unit installed in my 2008 Mercedes, and it feels like a brand-new car. The installation was super clean. At first, the sound wasn’t the same as the factory stereo, but Kevin tuned it to be just as good—if not better—without adding any new amps. They even used my factory GPS antenna so I don’t have extra wires hanging out. On top of that, they matched the online price. Big thanks to Kevin and Eddie—highly recommended!
Kevin was awesome, he took his time and explained everything to me. I went in initially for a dash cam install and then decided to get a sub and amp installed as well. Both turned out great and will be returning if I need more work done.
Came In not knowing what to expect when suddenly my stereo stopped working. Spoke with Kevin in the front and after a VERY fast diagnosing they discovered my wiring was incorrect. After only about 45 minutes total being in the store I was on my way to the beach with a working stereo again! Thank you so much SDCARSTEREO
Highly recommend Kevin and the team at San Diego Car Stereo for any issues with aftermarket stereos. I bought a car with an aftermarket stereo and AC unit that wasn’t working properly—specifically, the heat wasn’t functioning due to an improper setup. I had several people look at it with no luck, and even the dealership basically refused to help because it was an aftermarket install. I came to Kevin and his team over the holidays feeling pretty defeated, but he was confident he could get the heat working before I headed back to a Colorado winter. Sure enough, he got it done.
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.
