Starting at $545.00
Upgrade your ride with the new 33″ SEDS33 Elite SoundExtreme sound bar. Perfect for ATVs, UTVs, boats, and golf carts, this 500-watt system packs 11 marine-grade speakers for powerful, 360° sound. Built tough—100% waterproof, dust-proof, and dirt-proof. Connect up to 100 units with EcoCast and add 2 LED light kits or whips for the ultimate adventure setup.
Starting at $445.00.
Upgrade your ride with the 28″ SoundExtreme Elite sound bar. Compact and powerful with 500W and 8 marine-grade speakers, it delivers rich, waterproof audio for ATVs, UTVs, boats, and golf carts. Connect up to 50 units, control 4-zone LED lighting with the free app, and add extra LED kits or whips for the ultimate adventure setup.
Starting at $345.00.
Upgrade your adventure with the SoundExtreme SE18E Elite 18″ Bluetooth sound bar. Compact yet powerful, this waterproof and dust-proof speaker is built for ATVs, UTVs, golf carts, and boats. Enjoy crystal-clear audio with rich bass, vibrant multi-mode LED party lights, and full control through the free SoundExtreme smartphone app. With EcoCast wireless pairing, you can link multiple sound bars, while LEDCast lighting control lets you customize your ride’s look and sound in one rugged system.
Starting at $495.00
Unleash powerful bass with the ECOXGEAR SoundExtreme ES08 powered 8″ subwoofer. Engineered with a built-in 500W Class-D amplifier, the ES08 drives one active and one passive subwoofer for deep, heart-pounding lows that bring your music to life. Whether you’re cruising in your ATV or UTV, upgrading your golf cart audio system, hitting the water on your boat, or setting up sound in your RV, garage, or workshop—this rugged sub is built to perform anywhere.
Designed to handle the toughest conditions, the ES08 is 100% waterproof and dust-proof (IP66 rated), so mud, sand, and snow are never a concern—just hose it off and keep going. With EcoCast wireless technology, you can link the ES08 to any compatible ECOXGEAR audio product, while the waterproof SUB-IN jack ensures easy connection to any brand sound bar or stereo amp. Add dynamic LED lighting effects and full smartphone control through the free SoundExtreme app for a truly customized experience.
👉 Upgrade your ride today with the SoundExtreme ES08—transform your outdoor adventures with bass you can feel.
Starting at $450.00
Customize your golf cart audio system with 1 or 2 wired audio zones and 1 wireless audio zone. Change zone volume independently or together, even change the zone names. DIN radios and new speakers from SoundXtreme can bring new life to your existing golf cart audio system, all with a streamlined installation here at our shop in Wildwood, FL. This DIN set also comes with 2 6.5″ speakers.
Installing a new DIN allows for wirelessly streaming your radio’s Bluetooth music, AM/FM radio and AUX In audio tothe millions of EcoCast enabled products, including ECOXGEAR and SoundExtreme sound bars, tower speakers, portable and battery powered party speakers.
The custom installation kit for DIYers comes with:
The DEFENDER by ECOXGEAR is a powerful, waterproof, 10lb portable speaker perfect for outdoor adventures or home use. It boasts a durable design, massive sound, and long playtime.With its versatile features like multiple EQ settings, microphone capabilities, and party lights, The DEFENDER is a true all-in-one speaker. Now with a 2 year warranty!
A small portable speaker like this can make a big improvement in your golf cart audio system.
Massive Sound:
A 100W dynamic Texas Instruments power amplifier delivers massive sound while 3 digital equalizer settings allows for the perfect sound for your favorite outside adventure or inside your home.
Waterproof & Dustproof:
IP67 rated waterproof and dustproof. Can withstand full submersion up to 1m for 30 minutes and it floats.
25+ Hour Playtime (6+ hours at Max Volume):
Built-in rechargeable battery: 79.96Wh @ 14.8 Volts, 5400 mA
2 Year Warranty:
We stand behind the durability of our products. Defender offers a 2 year warrant, perfect for your golfcart audio system.
EQ Settings:
Customize the sound for any environment (including your golf cart audio system) with an indoor, outdoor, and a favorite mode.
2-Way Speaker System:
6″x9″ full-range polypropylene carbon main driver with a 1.7″ titanium tweeter, for balanced, quality acoustics you won’t find on ordinary portable speakers.
Bluetooth 5.1:
Bluetooth 5.1 wireless connectivity lets you pair your compatible device for wireless audio streaming up to 100′ away from your phone, can also connect two devices at once.
Left/Right Stereo Pairing:
Connect multiple Defenders in true left/right stereo pairing.
EcoCast:
Link up to 100 ECOXGEAR and SoundExtreme products together (up to 30ft between each speaker).
3.5mm Aux Input:
Connect wired media devices.
Integrated Microphone:
Voice calls speakerphone capabilities, Siri/Google voice assistant support
Addressable LED Lights & Flashlight:
Controllable via the speaker’s keypad and the SOUNDEXTREME app for parties. Google Play and Apple
As expert technicians for golf carts and other EVs, we’re able to install high-quality golf cart audio systems designed to turn your cart into the life of the party. As you can see from our catalog, we offer a huge variety of golf cart audio systems to help our customers find the right solution for their golf cart.
Best Battery is proud to be a dealer for SoundXtreme, a leading manufacturer of high-quality audio components for power-sports, marine, and golf cart applications. Regardless of your specific need, we can help you find the right product, and help you with a professional installation.
Whether you’re looking to enjoy your favorite music while cruising through The Villages, or hosting a neighborhood gathering, SoundXtreme products deliver unmatched audio quality and reliability. With our expertise and engineering-first approach, we ensure seamless installation and custom wiring to integrate your golf cart audio system perfectly with your golf cart.
