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"Fit perfectly and worked exactly as expected — support was excellent."
JL Audio MX300/1
Upgrade Your Vehicle With Confidence. This Is Built to Fit, Perform, and Last
Real installer support before and after purchase
Price Match Guarantee
Full Manufacturer 2 Years Warranty
Free 30-Day Returns
Check Compatibility
Only 4 left in stock
Ships within 1-3 days
Authorized Dealer Guaranteed
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
- 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
JL Audio MX300/1
Sale price$379.99
Why This Upgrade Makes Daily Driving Better
Ease of Use & Safety
Hands-free control reduces distraction and frustrationwhile driving.
Expandable by Design
Add backup cameras, better speakers, amps, or subsanytime.
FITMENT & INSTALLATION MADE SIMPLE
WHAT VEHICLES IT WORKS WITH
FIND THE RIGHT PRODUCT FOR YOUR EXACT VEHICLE
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
40 Years of Installation Experience
Tens of Thousands of Installs Completed
Authorized Dealer Full Warranties
Why Buying This Here Is Safer Than Anywhere Else
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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.
Free shipping
Free Shipping to the Lower 48 States
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Our Customer support and sales experts are always available to help
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