---
product_id: 255458862
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, Use Amp with Stereo and Subwoofer, Crossover"
brand: "boss audio systems"
price: "¥45836"
currency: JPY
in_stock: true
reviews_count: 5
category: "Boss Audio Systems"
url: https://www.desertcart.jp/products/255458862-boss-audio-systems-mc900b-amplifier-for-atv-utv-car-marine
store_origin: JP
region: Japan
---

# 500W Max Power Output 4-Channel Full Range Amp Weatherproof Design 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, Use Amp with Stereo and Subwoofer, Crossover

**Brand:** boss audio systems
**Price:** ¥45836
**Availability:** ✅ In Stock

## Summary

> 🎵 Elevate your ride’s soundtrack—boss-level sound, zero compromises!

## 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, Use Amp with Stereo and Subwoofer, Crossover by boss audio systems
- **How much does it cost?** ¥45836 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/255458862-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

- • **Charge On The Go:** Keep your devices powered with the built-in USB charging port—never miss a beat or a call.
- • **Power Your Adventure:** Unleash 125W RMS x4 channels for crystal-clear, high-impact sound anywhere you go.
- • **Compact & Lightweight:** Sleek 6.6” design weighing just 2.9 lbs fits discreetly in your ATV, UTV, or boat.
- • **Built to Brave the Elements:** Weatherproof connectors and rugged build ensure your music stays loud rain or shine.
- • **Seamless Bluetooth Streaming:** Cut the cord—stream Spotify, Pandora, and more with the included multi-function remote.

## Overview

The BOSS Audio MC900B is a compact, 4-channel Class A/B amplifier delivering up to 500 watts max power. Designed for ATV, UTV, car, and marine use, it features Bluetooth streaming with a multi-function remote, auxiliary input, USB charging, and weatherproof connectors. Its full-range capability supports both speakers and subwoofers, making it a versatile, rugged choice for 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.

Review: Kubota XG850 This is the easiest, fastest, cleanest install ever. Works perfectly and sounds pretty good. It's only been a couple weeks hopefully it stays working this good. All parts seem to be good quality.
Review: Easy to install, all clearly labeled. Excellent sound quality, small in size, easy to place in a hidden area, and the controller has a nice long cord so you can place it anywhere you want. The bluetooth connection is seamless and connects almost instantly. It’s an excellent value for the price, i haven’t bought a radio or amplifier that i have liked more. I use it with an iPad that i use for my radio and it charges it seamlessly. The USB cord only charges though so keep that in mind, its bluetooth only, but like I said it’s a nearly perfect bluetooth connection. It will also run a separate amplifier for a subwoofer or whatever you want. It’s a fantastic Amplifier with a great sound output and good volume control. No radio needed!!

## Features

- Power - 125 Watts Max x 4 @4 Ohms, 94 Watts RMS x 4 @4 Ohms
- Specs - Dimensions - 1.75” x 6.6” x 1.75”, Weighs 2.9 lbs.
- 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
- Auxiliary in - The Bluetooth remote is compatible with the audio output from smartphones as well as MP3 players. Just plug in and start playing
- USB Charging - You can charge your USB devices using the USB charging port
- 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
- BOSS Audio Systems provides a powerful 6-year Platinum Online Dealer Warranty so long as the purchase is made through desertcart.com. We strongly encourage professional installation of this product to ensure proper and safe functionality

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00IBI518Y |
| Best Sellers Rank | #21,877 in Electronics ( See Top 100 in Electronics ) #11 in Car Multichannel Amplifiers |
| Department | BOSS AUDIO |
| Item model number | MC900B |
| Manufacturer | BOSS Audio Systems |
| Product Dimensions | 19.81 x 9.65 x 4.45 cm; 1.3 kg |

## Product Details

- **Item dimensions L x W x H:** 19.8 x 9.7 x 4.4 centimeters
- **Manufacturer:** BOSS Audio Systems
- **Maximum supply voltage:** 12 Volts (DC)
- **Minimum supply voltage:** 12 Volts
- **Voltage:** 12 Volts

## 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, Use Amp with Stereo and Subwoofer, Crossover - Image 1](https://m.media-amazon.com/images/I/81TdBbWe9OL.jpg)

## Available Options

This product comes in different **Pattern** options.

## Questions & Answers

**Q: Can i use amp without remote?**
A: Integrated with remote control.

**Q: How can i use without remote**
A: Resistant Amplifier System with Bluetooth Multi Function Remote control

**Q: Can the usb jack read the usb flash drive?**
A: Hello ,

MC900 B model has only usb charging feature. 
However, if you want, ASK904B.64 model has a USB playback feature. 
Have a nice day.
Pekel's Market

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***K on 15 November 2023*

Kubota XG850 This is the easiest, fastest, cleanest install ever. Works perfectly and sounds pretty good. It's only been a couple weeks hopefully it stays working this good. All parts seem to be good quality.

### ⭐⭐⭐⭐⭐ Review
*by M***U on 25 June 2025*

Easy to install, all clearly labeled. Excellent sound quality, small in size, easy to place in a hidden area, and the controller has a nice long cord so you can place it anywhere you want. The bluetooth connection is seamless and connects almost instantly. It’s an excellent value for the price, i haven’t bought a radio or amplifier that i have liked more. I use it with an iPad that i use for my radio and it charges it seamlessly. The USB cord only charges though so keep that in mind, its bluetooth only, but like I said it’s a nearly perfect bluetooth connection. It will also run a separate amplifier for a subwoofer or whatever you want. It’s a fantastic Amplifier with a great sound output and good volume control. No radio needed!!

### ⭐⭐⭐⭐⭐ Review
*by Y***N on 30 November 2025*

なかなか販売されてなく探して買えましたマリンジェットを、爆音にします

## 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.jp/products/255458862-boss-audio-systems-mc900b-amplifier-for-atv-utv-car-marine](https://www.desertcart.jp/products/255458862-boss-audio-systems-mc900b-amplifier-for-atv-utv-car-marine)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-02*