







JL Audio RD500/1
RD Series 500 Watt Monoblock Subwoofer 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 car audio system with the JL Audio RD500/1 Monoblock Subwoofer Amplifier. Designed to deliver deep, powerful bass and exceptional sound clarity, this amplifier is ideal for audiophiles seeking high performance. Whether you're commuting daily or taking a road trip, the JL Audio RD500/1 is engineered to elevate your listening experience with robust bass and clarity.
Key Features:
| Feature | Description |
|---|---|
| Monoblock Subwoofer Amplifier | Dedicated power for your subwoofer, ensuring deep bass output. |
| Class D Amplifier Technology | Efficient power usage with superior sound quality and minimal heat generation. |
| Power Output | 500W RMS at 2 ohms and 300W RMS at 4 ohms for powerful bass. |
| Differential-Balanced Inputs | Reduces noise and distortion for clearer, more precise sound. |
| Advanced Rollback Protection | Prevents overheating, protecting the amplifier during extreme conditions. |
Key Purchase Information:
| Specification | Details |
|---|---|
| Power Output | 500W RMS at 2 ohms, 300W RMS at 4 ohms |
| Frequency Response | 7Hz-500Hz |
| Signal-to-Noise Ratio | >95 dB |
| Total Harmonic Distortion | <1% |
| Input Sensitivity | 200mV-8V |
| Dimensions | 10.23 x 6.96 x 2.18 inches |
| Compatibility | Universal |
| Materials | Rugged construction with high-quality components for durability. |
| Included Accessories | Wiring Harness, Mounting Hardware, User Manual |
| Installation Notes | Easy installation with included hardware and wiring options. Compatible with aftermarket and factory audio systems. |
What's in the Box:
- JL Audio RD500/1 Amplifier
- Wiring Harness
- Mounting Hardware
- User Manual

JL Audio RD500/1 RD Series 500W RMS x 1 at 2 Ohms, Class-D Mono Subwoofer Car Amplifier
Unleash deep, distortion-free bass with the JL Audio Class-D Mono Subwoofer Amplifier featuring cutting-edge NexD™ Switching Technology. Delivering up to 500W at 2Ω and 250W at 4Ω, it combines power and precision in a sleek, ultra-compact design. Its rugged black powder-coated chassis houses advanced audio controls for complete sound customization — including a variable bass boost EQ and a fully adjustable 12 dB/octave low-pass filter (50–500 Hz). Designed for seamless integration, it features dual-range, differential-balanced inputs, automatic turn-on capability, and convenient preamp outputs for system expansion. With LED clipping indicators for quick setup and optional remote control support, this amplifier delivers pure, powerful performance built to last.
Key Features
- Class-D Mono Subwoofer Amplifier with NexD™ Switching Technology
- Power Output: 500W at 2Ω / 250W at 4Ω
- Compact, Durable Chassis with Black Powder-Coated Finish
- Advanced 12 dB/Octave Low-Pass Filter (50–500 Hz) for Precise Bass Tuning
- Variable Bass Boost EQ for Customizable Low-End Performance
- Dual-Range Differential-Balanced Inputs for Flexible System Integration
- Automatic Turn-On via Signal or DC-Offset Sensing
- Preamp Outputs for Easy System Expansion
- LED Clipping Indicator for Accurate Sensitivity Adjustment
- Dual-Color LED Light Strip for Real-Time Status Monitoring
- Compatible with Optional RBC-1 Remote Level Control (Sold Separately)
- Includes 2.5mm Allen Wrench, JL Audio Badge & Owner’s Manual
What's Inside?
- Class-D Mono Subwoofer Car Amplifier
- 2.5mm Allen Wrench
- Self-Adhesive JL Audio Badge
- Owner's 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.
