---
product_id: 182824614
title: "BOSS Audio Systems MCBK420B Bluetooth Speaker System - Class D Compact Amplifier, 3 Inch Weatherproof Speakers, Volume Control, Great for Use with ATVs/Motorcycles, 12 Volt Vehicles"
brand: "boss audio systems"
price: "$U15076"
currency: UYU
in_stock: false
reviews_count: 7
url: https://www.desertcart.uy/products/182824614-boss-audio-systems-mcbk420b-bluetooth-speaker-system-class-d-compact
store_origin: UY
region: Uruguay
---

# Bluetooth Streaming & Aux Input 600W Max Power Amp Weatherproof Speakers BOSS Audio Systems MCBK420B Bluetooth Speaker System - Class D Compact Amplifier, 3 Inch Weatherproof Speakers, Volume Control, Great for Use with ATVs/Motorcycles, 12 Volt Vehicles

**Brand:** boss audio systems
**Price:** $U15076
**Availability:** ❌ Out of Stock

## Summary

> 🎵 Power your ride with unstoppable sound and weatherproof style!

## Quick Answers

- **What is this?** BOSS Audio Systems MCBK420B Bluetooth Speaker System - Class D Compact Amplifier, 3 Inch Weatherproof Speakers, Volume Control, Great for Use with ATVs/Motorcycles, 12 Volt Vehicles by boss audio systems
- **How much does it cost?** $U15076 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/182824614-boss-audio-systems-mcbk420b-bluetooth-speaker-system-class-d-compact)

## 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

- • **Handlebar Ready:** Adjustable brackets fit handlebars from 0.75” to 1.25” for easy, secure installation.
- • **Ride Loud, Ride Proud:** 600W Class D amplifier delivers powerful, crisp sound that dominates the road.
- • **Built for the Elements:** Advanced weatherproofing means your music never stops, rain or shine.
- • **Instant Volume Control:** Wired remote lets you dial your sound without missing a beat or a turn.
- • **Seamless Wireless Jams:** Bluetooth connectivity plus 3.5mm aux input for ultimate playlist control on the go.

## Overview

The BOSS Audio MCBK420B is a compact, weatherproof Bluetooth speaker system designed for 12V motorcycles, ATVs, and scooters. Featuring a 600W max Class D amplifier, two 3-inch full-range speakers, and versatile connectivity options including Bluetooth and auxiliary input, it delivers robust sound on the go. Its adjustable handlebar mounts and wired remote volume control make it a perfect upgrade for riders seeking high-quality audio that withstands the elements.

## Description

Max out your playlists while you ride the roads or the trails with the Boss Audio MCBK420B Black Weatherproof Motorcycle Sound System. Power up your music on your 12V Motorcycle, Scooter or ATV with the 600 Watt Max Power Amp and a pair of 3" Full Range Speakers. Hook your Smartphone or MP3 Player up to the Auxiliary Input. Bluetooth Audio Streaming lets you play your favorite music apps like Spotify and Pandora. Turn up the sound with the Wired Remote Volume Control. The MCBK420B features Weatherproof Speakers to provide protection against the elements. For high quality sound on the go, fire up the Boss Audio MCBK420B.

Review: Drain on battery - Speaker's fitted professionally. However drained my new battery so had to pay for an additional on/off switch. Sound quite loud but could do with a lot more bass. Also impossible to register warranty as American company.
Review: Savage - So I bought this puppy cause I knew the next ones up wear 2 much, and have to say I'm going to have some good rides and tunes during the lockdown, Great sound and plenty of bang for the buck

## 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
- Weatherproof - The MCBK420B has been outfitted with the latest weatherproofing techniques for protection against the elements
- Speakers - Also included are two 3-inch matte black full range speakers. The adjustable brackets will fit handlebars from ranging from .75” to 1.25”
- Playback - A 3.5 mm auxiliary input is compatible with audio outputs of smartphones and MP3 players

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00T3QBL3M |
| Best Sellers Rank | 111,539 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 185 in Car Speaker Sets |
| Colour | black |
| Compatible devices | MP3 Player, Smartphone |
| Control method | Remote |
| Department | Automobile |
| Guaranteed software updates until | unknown |
| Impedance | 4 Ohms |
| Included components | Boss Audio MCBK420B Speaker System Amplifier, Remote Control |
| Is waterproof | True |
| Item model number | MCBK420B |
| Item weight | 1.72 kg |
| Manufacturer | BOSS Audio Systems |
| Maximum range | 30 Feet |
| Number of items | 3 |
| Power source | Corded Electric |
| Product dimensions | 11.4D x 10.2W x 10.2H centimetres |
| Recommended uses for product | Music,Vehicle |
| Speaker size | 3 Inches |
| Special feature | Amplifier, Bluetooth |
| Subwoofer diameter | 3 Inches |
| Surround-sound channel configuration | 2.0 |
| Unit count | 2.0 count |
| Warranty type | Limited |
| Wireless communication technology | Bluetooth |

## Product Details

- **Audio output mode:** Stereo
- **Brand:** BOSS Audio Systems
- **Connectivity technology:** wired, wireless
- **Frequency response:** 15 KHz
- **Input voltage:** 12 Volts
- **Material:** unspecified
- **Model name:** MCBK420B
- **Mounting type:** Handlebar Mount
- **Speaker maximum output power:** 600 Watts
- **Speaker type:** Bluetooth

## Images

![BOSS Audio Systems MCBK420B Bluetooth Speaker System - Class D Compact Amplifier, 3 Inch Weatherproof Speakers, Volume Control, Great for Use with ATVs/Motorcycles, 12 Volt Vehicles - Image 1](https://m.media-amazon.com/images/I/7198WKY5rML.jpg)
![BOSS Audio Systems MCBK420B Bluetooth Speaker System - Class D Compact Amplifier, 3 Inch Weatherproof Speakers, Volume Control, Great for Use with ATVs/Motorcycles, 12 Volt Vehicles - Image 2](https://m.media-amazon.com/images/I/71uPe7sFoiL.jpg)
![BOSS Audio Systems MCBK420B Bluetooth Speaker System - Class D Compact Amplifier, 3 Inch Weatherproof Speakers, Volume Control, Great for Use with ATVs/Motorcycles, 12 Volt Vehicles - Image 3](https://m.media-amazon.com/images/I/711nuqPvviL.jpg)
![BOSS Audio Systems MCBK420B Bluetooth Speaker System - Class D Compact Amplifier, 3 Inch Weatherproof Speakers, Volume Control, Great for Use with ATVs/Motorcycles, 12 Volt Vehicles - Image 4](https://m.media-amazon.com/images/I/71ZzZS28CJL.jpg)
![BOSS Audio Systems MCBK420B Bluetooth Speaker System - Class D Compact Amplifier, 3 Inch Weatherproof Speakers, Volume Control, Great for Use with ATVs/Motorcycles, 12 Volt Vehicles - Image 5](https://m.media-amazon.com/images/I/71myaxnoEOL.jpg)

## Questions & Answers

**Q: Why would you recommend, this set of 4 or the set of 2 with 600 watts ?**
A: I tried running 4 in the amp provided by boss but it didn't have the power needed to dedicate for clear and loud sound. I went back down to two of these and 2 6/9s in my fairing in a separate amp. I would not recommend more then 2, but with just the 2 it was a decent sound I was pleased with it.

**Q: Will these fit a 300cc touring scooter?**
A: The MCBK420B may fit. Thank you.

**Q: Will this work with a Honda Rebel 250?**
A: I see no reason why they won't fit your Honda Rebel.If you put it up on utube to see the fitting instructions, you can decide if you want to go ahead with the fitting.You won't be disappointed with the great sound.

**Q: Where do I find a replacement fuse?**
A: Available at local auto parts or Walmart automotive department

## Customer Reviews

### ⭐⭐ Drain on battery
*by A***R on 23 July 2020*

Speaker's fitted professionally. However drained my new battery so had to pay for an additional on/off switch. Sound quite loud but could do with a lot more bass. Also impossible to register warranty as American company.

### ⭐⭐⭐⭐⭐ Savage
*by D***E on 21 May 2020*

So I bought this puppy cause I knew the next ones up wear 2 much, and have to say I'm going to have some good rides and tunes during the lockdown, Great sound and plenty of bang for the buck

### ⭐ Review
*by O***N on 9 October 2023*

Speaker mounting broke within a week of installing them

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-22*