






Sony XM-GS4
4-channel car amplifier — 70 watts RMS x 4
Enjoy a complimentary $75 Installation credit on all Online Orders. Limit one per customer. Terms and Conditions apply.
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Sony XM-GS4 4-Channel Car Amplifier
Experience superior in-car audio performance with the Sony XM-GS4 4-Channel Amplifier, designed to bring every track to life with precision and clarity. Engineered for High-Resolution Audio playback, this amplifier delivers an ultra-wide frequency response that extends up to 100 kHz, ensuring your music sounds exactly as the artist intended.
Engineered for Ultimate Sound Reproduction
Premium-grade circuit components work in perfect harmony to deliver outstanding efficiency and accurate sound reproduction. Whether you're listening to smooth vocals or deep basslines, the XM-GS4 ensures every detail of your music is rendered with stunning clarity and balance, making it the perfect companion for high-performance audio setups.
Hardwired for Exceptional Sound Quality
Designed with high-quality audio circuitry, the XM-GS4 minimizes distortion and interference. Its heavy-duty aluminum chassis ensures stability and durability while maintaining cool operation for consistent performance.
More Sound, Less Noise
The amplifier’s twisted-wire cable structure and carefully selected potentiometers reduce electromagnetic interference and maintain a clean, distortion-free signal. The result is crystal-clear sound with minimal noise, even at high output levels.
Key Features
– 4-channel amplifier with 70W RMS per channel at 4 ohms
– Supports High-Resolution Audio playback up to 100 kHz
– Premium audio circuitry for high efficiency and low distortion
– Heavy-duty aluminum casing for thermal stability and durability
– Twisted-wire cable design reduces electromagnetic interference
– Gold-plated connections ensure signal purity
– Compact design for easy integration into any audio setup
– Includes fuses, harness, and mounting accessories for installation
What's Inside?
- 4-Channel amplifier
- (2) 30A ATO fuses (installed)
- 4.75" Speaker level input harness
- (4) Self-tapping screws (M4 x 14mm)
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.
