--- product_id: 226738484 title: "MC900B Amplifier for ATV UTV Car Marine - 500 High Output, 4 Channel, 2/4 Ohm, Bluetooth Multi-Function Remote, RCA Out, Weatherproof" brand: "boss audio systems" price: "€ 286.02" currency: EUR in_stock: true reviews_count: 6 category: "Boss Audio Systems" url: https://www.desertcart.sk/products/226738484-mc900b-amplifier-for-atv-utv-car-marine-500-high-output store_origin: SK region: Slovakia --- # 500W max output x4 channels Bluetooth streaming + remote control Weatherproof for all-terrain use MC900B Amplifier for ATV UTV Car Marine - 500 High Output, 4 Channel, 2/4 Ohm, Bluetooth Multi-Function Remote, RCA Out, Weatherproof **Brand:** boss audio systems **Price:** € 286.02 **Availability:** ✅ In Stock ## Summary > 🎵 Elevate your ride’s soundtrack—boss-level sound, anywhere, anytime! ## Quick Answers - **What is this?** MC900B Amplifier for ATV UTV Car Marine - 500 High Output, 4 Channel, 2/4 Ohm, Bluetooth Multi-Function Remote, RCA Out, Weatherproof by boss audio systems - **How much does it cost?** € 286.02 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/226738484-mc900b-amplifier-for-atv-utv-car-marine-500-high-output) ## Best For - boss audio systems enthusiasts ## Why This Product - Trusted boss audio systems brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Cut the Cords:** Seamlessly stream your favorite playlists via Bluetooth—no head unit needed, just pure wireless freedom. - • **Power Your Adventure:** Unleash 500 watts max across 4 channels for crystal-clear, high-impact sound wherever you go. - • **Plug & Play Simplicity:** Easy installation with standard wiring colors and a compact freestanding form factor—upgrade your ride hassle-free. - • **Full Range Audio Control:** Supports both speakers and subwoofers with Class A/B amplification for rich, balanced sound on every terrain. - • **Built to Brave the Elements:** Weatherproof design and corrosion-resistant connectors keep your beats rolling rain or shine. ## Overview The BOSS Audio MC900B is a rugged, 4-channel Class A/B amplifier delivering up to 500 watts max output at 4 ohms. Designed for ATV, UTV, car, and marine use, it features Bluetooth streaming with a multifunction remote, weatherproof connectors, and full-range support for speakers and subwoofers. Its compact, freestanding design ensures easy installation and reliable performance in diverse environments. ## Description Pump out the jams on your next adventure with the Boss Audio MC900B Class A/B 4-Channel Full Range All-Terrain Amplifier. This 4-Ohm stable Amplifier features 500 Watts Max Power to keep your tunes rolling. Hook your smartphone or MP3 Player up through the Auxiliary Input to listen to your playlists. Plug into the USB Port to charge your USB-Connected devices. Bluetooth Audio Streaming lets you play your favorite music apps like Pandora or Spotify. No need for an In-Dash Head Unit to play your music. Control it all with the Inline Multi-Function Remote Control. The MC900B Amplifier features weatherproof connectors to prevent corrosion and provide protection against the elements. Feel the music with the Boss Audio MC900B. For further product details, please scroll down. Review: Good, but limited features. - Having seen this amp on desertcart, I ended up buying direct from Boss, as it worked out a fair bit cheaper, even from the US. It wasn't rocket science to fit. The wiring followed standard colours, so was a doddle to unwire my old DIN plug, and wire this one in place with no mix-ups. The sound is more than adequate. The quality is crisp and clear through the old 6x9 rears and 3" front speakers I had already fitted, though I'd definitely say the 500 watt output claimed is a little optimistic. The main down sides are that there's no way to alter the tone in any way. Neither is there a way to set the balance and fader, so folk that are heavily into audio setup might want to reconsider. Fortunately for me it seemed to come out of the box sounding pretty good. A simple fix for this would be for Boss to release an app that enables these settings, but there's nothing like that currently available. I did try to reach out to Boss about this but have had no response from them - which confirms what I've heard and read from others, regarding Boss having shocking customer relations. The one benefit I really like, is that the button panel fits perfectly into the original radio slot in my 1965 VW camper. I just need to find a way to hold it in from behind so I can replace my radio cover plate when the stereo is not needed. Review: Conexión rápida de Bluetooth - Acoplamiento muy rápido con dispositivos bluetooth ## Features - Power: 500 High Output Max x 4 @4-Ohms, 94 Watts RMS x 4 @4-Ohms - Bluetooth: You do not need a head unit. Just power up the MC900B and hook up some speakers to it. The included Bluetooth remote control lets you stream your music via your Bluetooth device and use apps like Spotify and Pandora - Weatherproof: The MC900B has been designed to handle some light weather conditions without giving up on you. It is great for use in ATVs and boats. - Class AB: Class ‘A’ amplifiers have enormous amount of current flowing through its output transistors with no audio signal. Class ‘B’ amplifiers have no current flowing through its outputs with no audio signal - Full Range: With a Full Range amplifier you not only have the option to run your speakers, but also your subwoofers ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00IBI518Y | | Best Sellers Rank | 86,182 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 33 in Car Multichannel Amplifiers | | Brand | BOSS Audio Systems | | Customer Reviews | 4.2 out of 5 stars 1,026 Reviews | | Global Trade Identification Number | 00791489100762 | | Included Components | Components included in the description | | Item Dimensions | 19.8 x 9.7 x 4.4 centimetres | | Item Type Name | Amplifier 4 x 125 W with Conexion | | Item dimensions L x W x H | 19.8 x 9.7 x 4.4 centimetres | | Manufacturer | BOSS Audio Systems | | Manufacturer Part Number | MC900B | | Material | Plastic | | Maximum Output Power | 500 watts | | Maximum Supply Voltage | 12 Volts (DC) | | Maximum supply voltage | 12 Volts (DC) | | Minimum Supply Voltage | 12 Volts | | Minimum supply voltage | 12 Volts | | Model Number | MC900B | | Mounting Type | Freestanding | | Mounting type | Freestanding | | Number of Channels | 4 | | Number of Items | 1 | | Number of Packs | 1 | | Output Power | 500 Watts | | Package Type Name | Box | | Specification Met | FCC | | UPC | 791489100762 | | Unit Count | 1.0 count | ## Product Details - **Item dimensions L x W x H:** 19.8 x 9.7 x 4.4 centimetres - **Manufacturer:** BOSS Audio Systems - **Maximum supply voltage:** 12 Volts (DC) - **Minimum supply voltage:** 12 Volts - **Mounting type:** Freestanding ## Images ![MC900B Amplifier for ATV UTV Car Marine - 500 High Output, 4 Channel, 2/4 Ohm, Bluetooth Multi-Function Remote, RCA Out, Weatherproof - Image 1](https://m.media-amazon.com/images/I/81TdBbWe9OL.jpg) ![MC900B Amplifier for ATV UTV Car Marine - 500 High Output, 4 Channel, 2/4 Ohm, Bluetooth Multi-Function Remote, RCA Out, Weatherproof - Image 2](https://m.media-amazon.com/images/I/81jRcsMKqUL.jpg) ![MC900B Amplifier for ATV UTV Car Marine - 500 High Output, 4 Channel, 2/4 Ohm, Bluetooth Multi-Function Remote, RCA Out, Weatherproof - Image 3](https://m.media-amazon.com/images/I/A1W8ynU53sL.jpg) ![MC900B Amplifier for ATV UTV Car Marine - 500 High Output, 4 Channel, 2/4 Ohm, Bluetooth Multi-Function Remote, RCA Out, Weatherproof - Image 4](https://m.media-amazon.com/images/I/71+zIhl1TVL.jpg) ![MC900B Amplifier for ATV UTV Car Marine - 500 High Output, 4 Channel, 2/4 Ohm, Bluetooth Multi-Function Remote, RCA Out, Weatherproof - Image 5](https://m.media-amazon.com/images/I/71xawmcEKGL.jpg) ## Questions & Answers **Q: Is there any way to adjust the settings on the amp? It doesn't seem like I'm getting full power out of mine???** A: I've got two of these installed in the fairing of two H-D. Both have worked great till recently. the older one just one day starting putting out about half the volume it use to. I connected a different speaker and no change. I can switch my phone between the two and with the phone volume the same, the newer one is twice as loud. Is this amp about to die? **Q: Kindly recommend 6.5 inch powered speakers with bass of correct Watts & Impendance. Thanks** A: This amp will have no problem driving 6.5" 4ohm speakers if they are in to 50-150watt range. Remember it is 4 channel **Q: Can this run 4 80w speakers?** A: Yes. It will do fine w/ 4 speakers especially if they are low end or factory car speakers. If they are aftermarket higher end speakers you may struggle with clean sound at higher volumes...in which case I'd get a better $$ amp **Q: How long is the wire for the remote?** A: Well friend it’s about 10 feet long if you’re putting this on your motorcycle I definitely recommend it it’s the best add-on I did my bike I can go 80 mph and here Chris music ## Customer Reviews ### ⭐⭐⭐⭐ Good, but limited features. *by D***! on 21 August 2024* Having seen this amp on Amazon, I ended up buying direct from Boss, as it worked out a fair bit cheaper, even from the US. It wasn't rocket science to fit. The wiring followed standard colours, so was a doddle to unwire my old DIN plug, and wire this one in place with no mix-ups. The sound is more than adequate. The quality is crisp and clear through the old 6x9 rears and 3" front speakers I had already fitted, though I'd definitely say the 500 watt output claimed is a little optimistic. The main down sides are that there's no way to alter the tone in any way. Neither is there a way to set the balance and fader, so folk that are heavily into audio setup might want to reconsider. Fortunately for me it seemed to come out of the box sounding pretty good. A simple fix for this would be for Boss to release an app that enables these settings, but there's nothing like that currently available. I did try to reach out to Boss about this but have had no response from them - which confirms what I've heard and read from others, regarding Boss having shocking customer relations. The one benefit I really like, is that the button panel fits perfectly into the original radio slot in my 1965 VW camper. I just need to find a way to hold it in from behind so I can replace my radio cover plate when the stereo is not needed. ### ⭐⭐⭐⭐⭐ Conexión rápida de Bluetooth *by E***A on 10 October 2021* Acoplamiento muy rápido con dispositivos bluetooth ### ⭐⭐⭐⭐⭐ Good system *by A***R on 28 August 2026* System works great on my boat. Puts out great sound ## Frequently Bought Together - BOSS Audio Systems MC900B 4 Channel Amplifier for ATV UTV Car Marine - 500 High Output, Low Level Inputs, Full Range, Weatherproof, Bass for Subwoofer - BOSS Audio Systems KIT2 8 Gauge Complete Car Amplifier Installation Wiring Kit with Power Cables, Ground Cables, Turn-On Wire, Speaker Wire, Terminals - BOSS Audio Systems MRGB65B 6.5 Inch Marine Boat Stereo Speakers - 200 Watts (per pair), Coaxial, 2 Way, Full Range, 4 Ohms, Multi-Color Illumination, Weatherproof, Sold in Pairs --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sk/products/226738484-mc900b-amplifier-for-atv-utv-car-marine-500-high-output](https://www.desertcart.sk/products/226738484-mc900b-amplifier-for-atv-utv-car-marine-500-high-output) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-09-10*