









JL Audio MX300/1
Compact Marine/Powersports 300 Watt Mono 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 MX300/1 Monoblock Marine Amplifier. Designed to perform in harsh marine environments, this amplifier delivers powerful bass and crystal-clear audio. Whether you’re cruising, fishing, or enjoying a party on the water, the JL Audio MX300/1 will elevate your sound system with high-quality, efficient performance.
Key Features:
Feature | Description |
---|---|
Monoblock Marine Amplifier | Dedicated power for subwoofer applications, delivering high-quality bass. |
Class D Amplifier Technology | Efficient power usage with superior sound quality for your marine audio system. |
Power Output | 300W RMS at 2 ohms and 200W RMS at 4 ohms for powerful sound. |
Differential-Balanced Inputs | Reduces noise and distortion for clearer, more accurate sound reproduction. |
Advanced Rollback Protection | Prevents overheating and protects the amplifier in extreme conditions. |
Key Purchase Information:
Specification | Details |
---|---|
Power Output | 300W RMS at 2 ohms, 200W RMS at 4 ohms |
Frequency Response | 20Hz-500Hz |
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 MX300/1 Amplifier
- Wiring Harness
- Mounting Hardware
- User Manual

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.