---
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: "$440"
currency: NZD
in_stock: false
reviews_count: 7
url: https://www.desertcart.nz/products/182824614-boss-audio-systems-mcbk420b-bluetooth-speaker-system-class-d-compact
store_origin: NZ
region: New Zealand
---

# Bluetooth connectivity 600W power output Weatherproof design 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:** $440
**Availability:** ❌ Out of Stock

## Summary

> 🎶 Elevate Your Ride with BOSS Audio!

## 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?** $440 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/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

- • **Unleash Your Sound:** Experience your favorite tracks with crystal-clear audio, thanks to the 600W Class D amplifier.
- • **Ride in Any Weather:** With advanced weatherproofing, your music stays safe and sound, rain or shine.
- • **Long-Range Listening:** Enjoy a maximum Bluetooth range of 21 meters, so you can keep the party going from a distance.
- • **Versatile Compatibility:** Easily connect your smartphone or MP3 player via Bluetooth or 3.5mm auxiliary input.
- • **Perfect Fit for Adventure:** Adjustable brackets fit handlebars from .75” to 1.25”, making it ideal for ATVs and motorcycles.

## Overview

The BOSS Audio Systems MCBK420B Bluetooth Speaker System is a compact, weatherproof audio solution designed for outdoor enthusiasts. Featuring a powerful 600W Class D amplifier and two 3-inch speakers, it offers seamless connectivity with smartphones and MP3 devices, ensuring you can enjoy your favorite music on the go, regardless of the weather.

## 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 |
|---------------|-------|
| Compatible devices | MP3 Player, Smartphone |
| Unit count | 2.0 count |
| Controller type | Remote Control |
| Surround-sound channel configuration | 2.0 |
| Colour | Black/White |
| Included components | Boss Audio MCBK420B Speaker System Amplifier, Remote Control |
| Item weight | 2 Kilograms |
| Is waterproof | True |
| Warranty type | Limited |
| Maximum range | 21 Metres |
| Manufacturer | BOSS Audio Systems |
| Product Dimensions | 8.89 x 7.62 x 3.81 cm; 2 kg |
| Batteries | 1 12V batteries required. |
| Item model number | MCBK420B |
| Manufacturer part number | MCBK420B |
| OEM Part Number | 705623 |
| Special Features | Waterproof |
| Voltage | 12 Volts |
| Wattage | 600 watts |
| Item Weight | 2 kg |

## Product Details

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

## 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

## Frequently Bought Together

- 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
- Nilight RGB LED Rock Lights Kit, 4 pods Underglow Multicolor Neon Light Pod with Bluetooth App Control Flashing Music Mode Wheel Well Light for Truck ATV UTV RZR SUV
- Yutrax Universal Mount ATV Backrest, Heavy-Duty Steel Seat Frame, Adjustable Seat Back Positions, 2” Thick Cushion, Folds Down Flat When Not in Use, TX219

---

## 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.nz/products/182824614-boss-audio-systems-mcbk420b-bluetooth-speaker-system-class-d-compact](https://www.desertcart.nz/products/182824614-boss-audio-systems-mcbk420b-bluetooth-speaker-system-class-d-compact)

---

*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-06*