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BOSS Audio Systems

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

    • Based on 3,593 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, May 12
Order within 17 hours and 48 minutes
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Color: Black


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
  • AMPLIFIER: 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
  • MEDIA PLAYBACK: A 3.5 mm auxiliary input 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

Brand: BOSS Audio Systems


Speaker Maximum Output Power: 600 Watts


Connectivity Technology: wired, wireless


Audio Output Mode: Stereo


Input Voltage: 12 Volts


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 3.5 x 3 x 1.5 inches; 4.41 Pounds


Item model number ‏ : ‎ MCBK420B


Batteries ‏ : ‎ 1 12V batteries required.


Date First Available ‏ : ‎ February 10, 2015


Manufacturer ‏ : ‎ Boss Audio Systems, Inc.


Customer Reviews: 4.4 4.4 out of 5 stars 3,593 ratings


Mounting Type: ‎Handlebar Mount


Material: ‎unspecified


Model Name: ‎MCBK420B


Speaker Type: ‎Tweeter


Special Feature: ‎Waterproof


Recommended Uses For Product: ‎For Motorcycles


Compatible Devices: ‎MP3 Player, Smartphone


Subwoofer Diameter: ‎3 Inches


Controller Type: ‎Remote Control


Surround Sound Channel Configuration: ‎3.0


Color: ‎Black


Included Components: ‎BOSS Audio Systems MCBK420B


Product Dimensions: ‎3"D x 3.5"W x 1.5"H


Item Weight: ‎2 Kilograms


Impedance: ‎4 Ohm


Is Waterproof: ‎FALSE


Warranty Type: ‎Extended


Maximum Range: ‎21 Meters


Number of Items: ‎2


Control Method: ‎Remote


Wireless Communication Technology: ‎Bluetooth


Speaker Size: ‎3 Inches


Power Source: ‎AC


Woofer Diameter: ‎3 Inches


Tweeter Diameter: ‎3 Inches


Vehicle Service Type: ‎Motorcycle


Water Resistance Level: ‎Waterproof


Customer Package Type: ‎Standard Packaging


Number of Batteries: ‎1 12V batteries required.


Audio Driver Type: ‎Dynamic Driver


Bluetooth Range: ‎10 Meters


Connectivity Protocol: ‎Bluetooth


Includes MP3 player?: ‎No


Specific Uses For Product: ‎personal


UPC: ‎791489123082


Style: ‎(2) 3" Black Speakers + Class D Amp


Global Trade Identification Number: ‎82


Manufacturer: ‎Boss Audio Systems, Inc.


Item Weight: ‎4.4 pounds


Item model number: ‎MCBK420B


Batteries: ‎1 12V batteries required.


Is Discontinued By Manufacturer: ‎No


Wireless Remote: ‎No


Warranty: ‎3 YEAR PLATINUM DEALER WARRANTY


Weight: ‎4.68 Pounds


Date First Available: February 10, 2015


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, May 12

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Great system for my Kawasaki Mule SX
I wanted a system that would give me clean music at normal listening levels and that would not draw excessive amps doing it. My Mule, and most motorcycles have batteries and charging systems are not designed for excessive amp drain. ( the Boss Audio MCBK420B only draws 4-5 amps) . I chose the Boss Audio MCBK420B Bluetooth system for my 2019 Kawasaki Mule and I am very happy with my choice . I installed the amp inside the glove box. In the dash mounted the volume control along with an additional on/off toggle switch. The 12v power is supplied thru a relay that is activated by the ignition switch per the instructions. I added the fore mentioned SPST toggle switch inline so I can manually turn off the amp when not needed. The speakers are clamped to a round frame under the dash that allowed them to face the occupants. I secured all wiring with ty wraps. This system is just what I was looking for. Music is clear, clean and it will play louder than I care to listen. The bass is a little lacking but sound quality is excellent for this size speaker system . Great bang for the buck and easy to install. The amp , speakers ,mounts and wiring in the kit are all good quality pieces and instructions make it relatively easy to install. If your looking for a nice minimalist sound system to enjoy some tunes in your UTV or SxS I would recommend you check this system out. If your looking for bone shaking bass and enough volume to scare the animals this system is probably not going to meet your needs. Happy Trails ... show more
Reviewed in the United States on February 17, 2019 by Biggun
    • Well-rounded speaker for many different types of music
These things are awesome. I put a 20-amp 12-volt converter on my 48-volt trike. So, now I bike with Bach, Beethoven and Brams it is so great. I get so many thumbs up.
Reviewed in the United States on May 2, 2025 by Michael
    • Nice inexpensive speaker alternative
Review Image by corey corey
Review Image by corey corey
Review Image by corey corey
Review Image by corey corey
Good quality speakers for the price. Install was pretty easy on my 2017 harley low rider. The speaker clamps are a pain to install securely with the rubber spacers but once on and tight they feel plenty sturdy. I had these on my old sportster years ago. They were great back then. Havent tested these on my new bike but on my old sportster they were plenty loud. Could hear pretty clearly at 65 with a full face on. As others have stated there is just about no bass but thats to be expected at the price and size of these speakers. Everything else is loud and clear. It seems like they changed the loud bluetooth connection noise. It wasnt a super loud sound like it was with my old pair. Would buy again. ... show more
Reviewed in the United States on September 27, 2022 by corey corey
    • Good bang for your buck speakers
The media could not be loaded. These speakers seem like a good bang for the buck. Have them on my super magna. They seem to have good sound and are very loud. Not much bass but don't need bass to enjoy the music. Fairly easy install hardest part was finding a spot on the handlebars,and finding a spot for the amp. Will give it 5 stars after I get out on the road with them and put some miles on them and see how they hold up ... show more
Reviewed in the United States on April 7, 2025 by Amazon Customer
    • Definitely Worth the Price
So far so good, installed the amp on a 2021 HD Electra Glide inside of the front fairing above the tray in the dash board. Tapped into switched power at the cigarette lighter/12v power socket. Extremally easy install, toughest part was getting the speaker mounts to be tight enough on the handlebars but went smoothly when is used the thick piece of rubber cut into 2 - 3/4" pieces and just used those 2 smaller pieces to get the mount to fit securely. (1" bars). Bass is a bit light but volume is good. 65+ mph with a half helmet. Haven't tested yet with my full face. Bluetooth connects flawlessly to iphone. I would say these are absoluteley worth their price (as long as they hold up - time will tell that). You can also swap in a better pair of speakers later down the road with more bass. The amp will work with any speakers. So far, very happy with this purchase. ... show more
Reviewed in the United States on April 13, 2023 by JohnE
    • Working Well!
Let me begin by saying I am not a handy person. I am lucky to put gas in the tank. So I had been looking at these speakers for over a year and was just intimidated by the electrical work. I had read several reviews about using kill switches and watched various videos about how to properly wire this. I bit the bullet and bought it a few weeks ago. I continued to watch videos and even asked my father-in-law about the wiring. I am quite proud it took me only 2 trips to the auto parts store. I basically got everything hooked up and then set about attaching it to my motorcycle. Honestly, the biggest challenge was attaching the speakers to the handlebars. It would have gone much quicker if I were an octopus with fingers on each tentacle. But I got it done. When I hooked up the wiring and turned on the switch, I heard the beeps! I was ecstatic! It works!! I am still working on the excess wiring and keeping it safely tucked away. I have a few ideas though. I just want to make sure it does not fall out, especially if I'm out riding. As far as quality, the volume is not the issue. I have yet to go above 45-50 mph with it on. It is plenty loud for kicking around town. Bear in mind while it does have an amp, it is just two speakers. This is not like going to the movies or having surround sound in a man cave. Nonetheless, it works great for just listening to your choice of music (and having other people hear it, too!). Overall, I am very happy with these speakers. I am so glad, too, I installed it myself. ... show more
Reviewed in the United States on May 2, 2022 by dsaladar

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