---
product_id: 226738484
title: "BOSS Audio Systems 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: "FREE"
currency: EUR
in_stock: false
url: https://www.desertcart.sk/products/226738484-boss-audio-systems-mc900b-amplifier-for-atv-utv-car-marine
store_origin: SK
region: Slovakia
---

# 500W max power output 4-channel full range sound Weatherproof for all terrains BOSS Audio Systems 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:** FREE
**Availability:** ❌ Out of Stock

## Summary

> 🎵 Unleash your soundtrack, rain or shine!

## Quick Answers

- **What is this?** BOSS Audio Systems 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?** FREE with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/226738484-boss-audio-systems-mc900b-amplifier-for-atv-utv-car-marine)

## 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

- • **Power Your Adventure:** Delivers up to 500 Watts max output across 4 channels for immersive sound wherever you go.
- • **Plug & Play Simplicity:** Easy installation with standard wiring colors and RCA outputs for versatile speaker setups.
- • **Built to Brave the Elements:** Weatherproof design ensures reliable performance on ATVs, UTVs, boats, and outdoor escapades.
- • **Full Range Audio Flexibility:** Supports both speakers and subwoofers for a rich, balanced sound experience on the move.
- • **Seamless Bluetooth Streaming:** Connect instantly without a head unit and control your playlists via the included multi-function remote.

## Overview

The BOSS Audio MC900B is a rugged, 4-channel Class A/B amplifier delivering up to 500 Watts max power at 4 Ohms. Designed for ATVs, UTVs, cars, and marine use, it features weatherproof connectors, Bluetooth streaming with a multi-function remote, and full-range output supporting both speakers and subwoofers. Its compact, freestanding design and easy wiring make it a perfect upgrade for outdoor and on-the-go audio enthusiasts.

## 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.

## 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 | 83,616 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 39 in Car Multichannel Amplifiers |
| Brand | BOSS Audio Systems |
| Customer Reviews | 4.2 4.2 out of 5 stars (1,025) |
| 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 |
| Manufacturer | BOSS Audio Systems |
| Manufacturer Part Number | MC900B |
| Material | Plastic |
| Maximum Output Power | 500 watts |
| Maximum Supply Voltage | 12 Volts (DC) |
| Minimum Supply Voltage | 12 Volts |
| Model Number | MC900B |
| 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

![BOSS Audio Systems 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/51hFxUUgnbL.jpg)
![BOSS Audio Systems 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/51FQoPYl2vL.jpg)
![BOSS Audio Systems 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/615zSdOs0FL.jpg)
![BOSS Audio Systems 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/41N4Nnff1tL.jpg)
![BOSS Audio Systems 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/41G-8rgvJiL.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

## 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

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-08-26*