



Rockford Fosgate R2-500X4
Prime Series 4-Channel Car Amplifier
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Rockford Fosgate R2-500X4: Versatile 4-Channel Amplifier for Superior Sound Quality
The Rockford Fosgate R2-500X4 is a powerful 4-channel Class-D amplifier engineered to deliver superior sound quality to your car audio system. With 500 watts of total power, this amplifier is designed to provide crisp, clear audio whether you're powering full-range speakers, component systems, or even subwoofers. Compact, efficient, and versatile, the R2-500X4 is the perfect addition for those looking to enhance their audio experience with high-quality amplification.
Key Features
- 500-Watt Class-D 4-Channel Amplifier: Delivers powerful, efficient performance for superior sound quality.
- Compact Design: Fits easily in a variety of vehicles, making it ideal for tight spaces.
- Versatile Installation: Features both high-level and low-level inputs for easy integration into any audio system.
- Durable Construction: Built with high-quality components for long-lasting, reliable performance.
- Bridgeable Channels: Can be configured to power a subwoofer or multiple speakers, offering flexibility in your audio setup.
Specifications
| Specification | Details |
|---|---|
| Amplifier Type | Class-D 4-Channel |
| Power Output | 75 Watts x 4 @ 4 Ohms / 125 Watts x 4 @ 2 Ohms / 250 Watts x 2 @ 4 Ohms Bridged |
| Frequency Response | 20 Hz - 20 kHz |
| Signal-to-Noise Ratio | >80 dB |
| Input Sensitivity | 150 mV to 4V |
| Dimensions | 8.5" x 6.8" x 2.0" (21.6 cm x 17.3 cm x 5.1 cm) |
| Crossover | High-Pass (80 Hz), Low-Pass (80 Hz) |
| Fuse Rating | 50A |
Frequently Asked Questions
Q: What is the Rockford Fosgate R2-500X4?
A: The R2-500X4 is a 500-watt Class-D 4-channel amplifier designed to deliver powerful, efficient sound, making it ideal for enhancing your car audio system.
Q: Is the R2-500X4 amplifier durable?
A: Yes, the R2-500X4 features a durable construction with high-quality components, ensuring long-lasting performance even in demanding audio systems.
Q: Can I install the R2-500X4 in a compact space?
A: Absolutely! The R2-500X4 is designed with a compact footprint, making it easy to install in a variety of vehicles, even where space is limited.
Q: What kind of speakers or subwoofers can the R2-500X4 power?
A: The R2-500X4 is versatile enough to power a wide range of speakers, component systems, or even subwoofers, providing clear and powerful sound.
Q: Why should I choose the Rockford Fosgate R2-500X4 for my car audio system?
A: The R2-500X4 offers superior sound clarity, efficient performance, and durable construction, making it an excellent choice for upgrading your car’s audio system with a reliable and high-performing amplifier.
Experience Superior Sound Quality in Your Car Audio System!
Don’t miss out on the opportunity to enhance your car audio with powerful, clear sound. Order the Rockford Fosgate R2-500X4 now and enjoy exceptional audio quality on every drive.

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.
