---
product_id: 1761663
title: "BOSS Audio Systems MC420B 3 Inch Motorcycle Speakers and Amplifier Sound System – Class D Amplifier, Weatherproof, Volume Control, ATV UTV Compatible"
brand: "boss audio systems"
price: "£106.20"
currency: GBP
in_stock: true
category: "Boss Audio Systems"
url: https://www.desertcart.co.uk/products/1761663-boss-audio-systems-mc420b-3-inch-motorcycle-speakers-and-amplifier
store_origin: GB
region: United Kingdom
---

# 25m Bluetooth wireless range 600W peak power output Advanced weatherproof design BOSS Audio Systems MC420B 3 Inch Motorcycle Speakers and Amplifier Sound System – Class D Amplifier, Weatherproof, Volume Control, ATV UTV Compatible

**Brand:** boss audio systems
**Price:** £106.20
**Availability:** ✅ In Stock

## Summary

> 🏍️ Turn your ride into a rolling concert — because silence is overrated!

## Quick Answers

- **What is this?** BOSS Audio Systems MC420B 3 Inch Motorcycle Speakers and Amplifier Sound System – Class D Amplifier, Weatherproof, Volume Control, ATV UTV Compatible by boss audio systems
- **How much does it cost?** £106.20 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/1761663-boss-audio-systems-mc420b-3-inch-motorcycle-speakers-and-amplifier)

## 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

- • **Ride Loud, Ride Proud:** 600 watts of crystal-clear sound that cuts through engine noise and highway roar.
- • **Built for the Elements:** State-of-the-art weatherproofing means your soundtrack never stops, rain or shine.
- • **Seamless Wireless Jams:** Bluetooth connectivity with a 25-meter range lets you stream Spotify, Pandora, and more effortlessly.
- • **Plug & Play Versatility:** Compatible with smartphones, MP3 players, ATVs, and UTVs — no bulky setup, just pure sound.
- • **Custom Control at Your Fingertips:** Inline volume knob mounts anywhere on your handlebars for instant, safe adjustments.

## Overview

The BOSS Audio Systems MC420B is a compact, handlebar-mountable 3-inch motorcycle speaker system featuring a powerful 600-watt Class D amplifier. It offers Bluetooth wireless streaming with a 25-meter range, advanced weatherproofing for all-weather durability, and an inline volume control for easy access. Compatible with smartphones, MP3 players, ATVs, and UTVs, this system delivers rich, clear sound designed to cut through road noise, backed by a 3-year platinum warranty.

## Description

BOSS Audio Systems MC420B 3 Inch Motorcycle Speakers and Amplifier Sound System – Class D Amplifier, Weatherproof, Volume Control, ATV UTV Compatible

## Features

- Bluetooth - Play and control a vast library of your favorite music using your smartphone or MP3 device, plus plug into apps like Spotify and Pandora wirelessly
- Amplified - A Bluetooth, compact, weatherproof, class D amplifier is included. It has been sealed with the latest weatherproofing techniques to protect against a rainy forecast
- Weatherproof - The MC420B has been outfitted with the latest weatherproofing techniques for protection against the elements
- Speakers - Also included are two 3-inch chrome full range speakers. The adjustable brackets will fit handlebars from ranging from .75” to 1.25”
- Playback - A 3.5 mm Auxiliary input located on the side of the amplifier is compatible with audio outputs of smartphones and MP3 players
- Volume Control - A convenient inline volume control (attached to the amplifier) can be installed in a place of your choosing, making sure that when the need hits… so will your tunes
- BOSS Audio Systems provides a powerful 3-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 | B00IBI50NK |
| Additional Features | Bluetooth |
| Antenna Location | Volume |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Battery Average Life | 10 years |
| Best Sellers Rank | #8 in Powersports Speaker Systems |
| Bluetooth Range | 25 Meters |
| Brand | BOSS Audio Systems |
| Built-In Media | BOSS AUDIO MC420B |
| Color | Silver |
| Compatible Devices | Smartphone, Tablet, MP3 Player |
| Compatible with Vehicle Type | ATV, UTV |
| Connectivity Protocol | Bluetooth |
| Connectivity Technology | Bluetooth |
| Control Method | App |
| Controller Type | Remote Control |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.3 4.3 out of 5 stars (7,144) |
| Enclosure Material | Metal |
| Global Trade Identification Number | 00791489121842 |
| Impedance | 4 Ohms |
| Input Voltage | 12 Volts |
| Is Electric | No |
| Is Waterproof | FALSE |
| Item Dimensions D x W x H | 4.5"D x 4"W x 4"H |
| Item Type Name | BOSS Audio Systems MC420B 3 Inch Motorcycle Speakers and Amplifier Audio Sound System – Class D Compact Amplifier, Weatherproof, Volume Control, ATV UTV Compatible, For Stereo, Tweeters |
| Item Weight | 4 Pounds |
| MP3 player | No |
| Manufacturer | BOSS Audio Systems |
| Maximum Range | 25 Meters |
| Model Name | MC420B |
| Model Number | MC420B |
| Mounting Type | Handlebar Mount |
| Number Of Circuits | 2 |
| Number of Audio Channels | 3.0 |
| Number of Batteries | 1 12V batteries required. |
| Number of Items | 2 |
| Number of Power Levels | 2 |
| Power Source | Battery Powered |
| Signal-to-Noise Ratio | 85 |
| Speaker Maximum Output Power | 600 Watts |
| Speaker Size | 3 Inches |
| Speaker Type | Outdoor |
| Specific Uses For Product | personal, gaming, business |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 3 Inches |
| Tweeter Diameter | 3 Inches |
| UPC | 791489121842 801940118035 506087193098 779422928048 012304293811 804892188439 |
| Unit Count | 1.0 Count |
| Warranty Description | 3 YEAR PLATINUM DEALER WARRANTY |
| Warranty Type | Extended |
| Water Resistance Level | Water Resistant |
| Wireless Technology | Bluetooth |
| Woofer Diameter | 3 Inches |

## Product Details

- **Audio Output Mode:** Stereo
- **Brand:** BOSS Audio Systems
- **Connectivity Technology:** Bluetooth
- **Input Voltage:** 12 Volts
- **Speaker Maximum Output Power:** 600 Watts

## Images

![BOSS Audio Systems MC420B 3 Inch Motorcycle Speakers and Amplifier Sound System – Class D Amplifier, Weatherproof, Volume Control, ATV UTV Compatible - Image 1](https://m.media-amazon.com/images/I/71IxQJmm9TL.jpg)

## Available Options

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

## Questions & Answers

**Q: Has anyone tried to mount these on a Harley engine guard?  Any issues?**
A: I mounted these on the engine guard of a Yamaha V-star. It works ok. But volume and clarity much improved when I moved them to the handle bars behind the windshield. When I had them mounted lower,on the engine guard,  to much distortion at highway speeds.

**Q: Would you be willing to just sell the amp part?  Stored over the winter and mice ate through the volume control and some other main wires.**
A: Hello,

I am looking through all of our options, and I did not find the amp by itself. 

Thank You.

**Q: Well this work on my Honda 1100 with a windshield? Are they water proof?**
A: I have this system install on my 2000 Honda VT1100C3 with a windshield it has work great sound is clean and loud, I install the speakers on the engine guard, the amp on the fork bag and the volume on the tool cover.

**Q: I just installed this and one speaker is already blown!**
A: Sometimes they go out and come back in

## Frequently Bought Together

- BOSS Audio Systems MC420B 3 Inch Motorcycle Speakers and Amplifier Audio Sound System – Class D Compact Amplifier, Weatherproof, Volume Control, ATV UTV Compatible, For Stereo, Tweeters
- JOYROOM Motorcycle Phone Mount, [1s Auto Lock][100mph Military Anti-Shake] Bike Phone Holder for Bicycle, [10s Quick Install] Handlebar Phone Mount, Compatible with iPhone, Samsung, All Cell Phone
- 3 Pair Motorcycle Riding Glasses Padding Goggles UV Protection Dustproof Windproof Motorcycle Sunglasses for Outdoor Actives

---

## 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.co.uk/products/1761663-boss-audio-systems-mc420b-3-inch-motorcycle-speakers-and-amplifier](https://www.desertcart.co.uk/products/1761663-boss-audio-systems-mc420b-3-inch-motorcycle-speakers-and-amplifier)

---

*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-30*