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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 3,607 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Jul 4
Order within 13 hours and 54 minutes
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Style: (2) 3" Black Speakers + Class D Amp


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


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


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


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


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


Customer Package Type: Standard Packaging


Maximum Range: 21 Meters


Input Voltage: 12 Volts


Global Trade Identification Number: 82


Controller Type: Remote Control


Manufacturer: Boss Audio Systems, Inc.


Item Weight: 4.4 pounds


Item model number: MCBK420B


Batteries: 1 12V batteries required.


Is Discontinued By Manufacturer: No


Date First Available: February 10, 2015


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jul 4

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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  • Affirm Financing
  • Afterpay Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Golf cart music setup!
Style: (2) 3" Black Speakers + Class D Amp
East setup on a golf cart, not to large, quality of sound was great, easily connected to the golf cart power, and Bluetooth setup isn’t challenging at all. Value for your money for hours of entertainment!
Reviewed in the United States on May 23, 2025 by Warrior 13
    • Well-rounded speaker for many different types of music
Style: (2) 3" Black Speakers + Class D Amp
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
    • Good Value amp and speakers.
Style: (2) 3" Black Speakers + Class D Amp
Review Image by Darren C. Darren C.
The media could not be loaded. Installation was pretty straightforward. There was plenty of cabling to route everything out of sight. Sounds decent, not much base as others have said, but it gets plenty loud enough to hear it at highway speeds. Speakers mount up tight on 1 1/4" bars. Thankful for the extra length on the lead for the power/volume controls allowed for mounting on my 14" ape hangers. ... show more
Reviewed in the United States on May 13, 2025 by Darren C. Darren C.
    • Good bang for your buck speakers
Style: (2) 3" Black Speakers + Class D Amp
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
    • Amount of sound
Style: (2) 3" Black Speakers + Class D Amp
This is my third different system that I have tried.You must have at least a hundred Watts or more to hear at high speeds. I was able to hear the music at only three quarters volume at over 70 mph. Just remember when you connect to Bluetooth on your phone make sure your phone volume is all the way up and use the volume that comes with the system that you're able to attach to handlebars.. if you're looking for a lot of bass you're not going to get that with this system but you will get a very loud system that you can hear it almost any speeds. System was very easy to install to the battery and I used the quick disconnect on the positive line I mounted it up by The handlebar so I was able to disconnect it when not using that way the battery will not drain. My main concern was being able to hear at highway speeds at 70 miles an hour or above and this system will provide that. good luck to you all ... show more
Reviewed in the United States on July 18, 2024 by Robert Crum
    • Good sound quality, but they don't last.
Style: (2) 3" Black Speakers + Class D Amp
Great while they last. I've gone through two sets of these already. They both blew out in about a year, first one was warranty swapped, but the replacement didn't fair much better. The right speaker was just starting to go when I put my bike in storage for the winter, when it came back out the speaker was just completely blown. I'll be looking for a different brand to replace these now. ... show more
Reviewed in the United States on May 13, 2025 by Ataxium
    • Working Well!
Style: (2) 3" Black Speakers + Class D Amp
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
    • Bueno
Style: (2) 3" Black Speakers + Class D Amp
The media could not be loaded. Muy rápido el envío y la calidad bastante buena para el precio
Reviewed in the United States on March 20, 2025 by Jariel Ramirez

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