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Boss MCBK420B

All-terrain Bluetooth® speaker pods and amplifier system (Black)

Item # 104MCB420B

Do you have a motorcycle or an ATV without a way to hear your favorite tunes, or a boat that needs accompaniment?...

Do you have a motorcycle or an ATV without a way to hear your favorite tunes, or a boat that needs accompaniment?...

Item # 104MCB420B

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C$159.99 each
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About the Boss MCBK420B

Take it outside

Do you have a motorcycle or an ATV without a way to hear your favorite tunes, or a boat that needs accompaniment? Do you want to stream music from your phone or other Bluetooth-equipped device? This MCBK420B speaker system from Boss can satisfy your needs. It's weatherproof: the MC420B's components, including the speakers, circuit boards, and amplifier connections, have been specially coated and sealed to protect against damage from water and weather. And it's Bluetooth enabled, so you can connect wirelessly to your favorite device for hours of listening pleasure.

Take it outside

Do you have a motorcycle or an ATV without a way to hear your favorite tunes, or a boat that needs accompaniment? Do you want to stream music from your phone or other Bluetooth-equipped device? This MCBK420B speaker system from Boss can satisfy your needs. It's weatherproof: the MC420B's components, including the speakers, circuit boards, and amplifier connections, have been specially coated and sealed to protect against damage from water and weather. And it's Bluetooth enabled, so you can connect wirelessly to your favorite device for hours of listening pleasure.

Get connected

The MCBK420B includes an in-line volume control for the two 3” speakers, which include adjustable brackets to mount the streamlined pods to a handlebar or rail. You can plug your media player into the system's minijack input or connect via Bluetooth2.1 — either way,  the system's 600 watts of peak power will give you plenty of volume. And the system's Bluetooth reception range extends up to 33 feet, so you can keep the music playing even when you're not right next to the system. Wherever you go, the MCBK420B can handle the conditions and pump out the tunes.

READ LESS

Product highlights:

  • system includes 2-channel amplifier and two 3" speakers
  • marine-grade construction for weather resistance
  • Bluetooth enabled with auto pairing and reconnect
  • peak power output: 600 watts
  • frequency response: 80-15,000 Hz
  • multi-function wired remote control
  • includes adjustable mounting brackets
  • dimensions: 3-1/4"L x 3-1/8"W x 1-5/8"D
  • warranty: 3 years
  • Our 60-day money-back guarantee
  • MFR # MCBK420B
KEEP READINGREAD LESS

What's in the box:

  • 2 Speakers (each with 37" wire and mounting bracket attached)
  • 2-channel amp (with wiring attached)
  • Wired volume control (attached to amp with 76" cable)
  • Two 0.25" spacers
  • Two 0.195" spacers
  • Two 0.155" spacers
  • Two 0.122" spacers
  • Two 0.078" spacers
  • Two 0.040" spacers
  • Two M10x45mm bolts (installed)
  • Two M10 Split lock washers (installed)
  • Two M10 Flat washers (installed)
  • Two M10x30mm bolts
  • Two 5-amp ATO fuses (one installed/one spare)
  • Four 3/4" Self-tapping screws
  • 4 Small split lock washers
  • 4 Small flat washers
  • User manual
  • Warranty information
  • Boss Facebook note

Customer reviews

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Boss MCBK420B reviews

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Great deal for the price

Crutchfield customer from Parma Heights, OH on 6/25/2019

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I did a lot of review reading before deciding to purchase these as a father's day gift for my husband. I definitely agree with other reviews that the bass is too low and the treble too high. However, after multiple trips out and about... I also agree that they provide plenty of sound on the freeway at 70-80 mph (and that is sitting BEHIND my husband with the speakers mounted in front!) Fortunately, we've not yet had to use them in the rain (and I hope we never do) so I can not speak to the lasting power in the rain. Installation was kind of a pain in the behind, the clamps were too large without the supplied padding and REALLY difficult to close with the padding. The amp is kind of bulky (as "is the "set" of wires that are bundled. We have a "pouch" mounted on the windshield so we were able to "hide" it all but I'm not sure how easy it would be to conceal without that. We are also planning to add, as another buyer suggested, an on'off switch. I'm not a big fan of having to unplug it all the time. I do wonder how long the clips for the power cords will hold up if we have to continue to do this. All in all, a great deal for the purchase price.

Pros: Great sound at 70/80 mph on freeway Economic Easy connection to battery Ability to "aim" the speakers

Cons: Bass could be better Bulky amp system Difficult to 'hide' wires for concealment Must manually unplug from system when done (no on/off)

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0 of 0 found this helpful

Boss MCBK420B

Crutchfield customer from P C Beach, FL on 3/30/2019

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Easy to install, very loud, and fast shipping. Thank you crutchfield!

Pros:

Cons:

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0 of 0 found this helpful

Can't beat it for the price!

Steven from Butler, PA on 6/23/2018

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I purchased this Boss unit for my 30 year old Yamaha Venture, I spent 7 hours installing it only because I wanted it hidden and not able to be easily stolen. I will start off with the speakers, they are very well built, heavy and loud, oh and did I mention loud? If you have trouble hearing these speakers then it's not the speakers, it's your hearing. They don't have the best lows and tones but at the same time I have heard worse for more money, personally I think they sound fine. They are advertised as 3 inch but I think that is the actual speaker itself and not the housing as you can see from the pictures, I placed a can beside the speaker to give a better idea as to there size. The blue tooth is easy to pair with and the unit has multiple ports to hook a device into it. I removed my old cassette deck and retained the lid to help protect it and keep it from view but still have easy access, and that's why it took 7 hours. looking at the pictures, the bottom knob is the volume, the middle is the aux jack in-case you have a music player without blue tooth. The top toggle switch is the only beef I have so far, I have this hooked into the accessory so I can listen to music when the bike is parked but there is no on or off switch, so the unit is always on even when not listening to music. I installed a toggle to be able to turn it off when not needed. I would have given it 5 stars if they had incorporated a off switch into the volume knob but other than that The Boss unit is great

Pros: Loud, has Aux in ports and extendable jack. Well built, when holding the speakers in your hand you won't get the impression they are cheap and they sound good, if you are looking for high fidelity sound then go spend a bunch more money but you won't find better quality for this price.

Cons: My only beef is there is no on and off switch, maybe you don't need one but I looked at it as unnecessary wear and tear on the unit.

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5 of 5 found this helpful

Good sound

Robert from Gray Court, SC on 10/16/2017

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Good speakers nice an loud I have them on my sportbike with loud exhaust an can still hear with full face helmet going 75 they are 4" not 3" but no problem

Pros:

Cons:

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5 of 5 found this helpful

Very good product!

Peter from Clearwater, FL on 8/27/2017

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Great sound system!

Pros: Well-made and great sounding unit. Good Bluetooth connectivity.

Cons: A little bit heavy for motorcycles but the weights all in the speakers and they produce a great sound so I guess you can't get away from that

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3 of 3 found this helpful

Nice alternative for outdoor vehicles

Edwin from Dorado, PR on 4/9/2017

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Got this system for my boat and I am satisfied with it. Easy to install/setup and the bluetooth works nicely. Don't let the advertised power rating fool you, it does not have that power, at least it doesn't sound like that, but is a great alternative. Need to wait and see how it hold-up to the elements.

Pros: Compact, easy to install/setup, Bluetooth works nice

Cons: Lacks a little more bass, the limit factor maybe the speakers but since the system is pre-wired I will wait to tap different speakers.

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3 of 3 found this helpful

Boss MCBK420B

Crutchfield customer from Colorado Springs, CO on 2/24/2017

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Probably the best sounding speakers I've heard in a pod configuration. Only drawback is the amp size. Nowhere to stash it or mount it now that installed my power commander v under the seat so unfortunately I have to sell it and go with the Victory factory system.

Pros:

Cons:

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2 of 2 found this helpful

Great product

Luis from Temple, PA on 9/12/2016

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It sound great and I ride a Harley that is loud and hearing the music at half of your volume is great. I will really recommend this product.

Pros: Easy to install and the Bluetooth works great.

Cons: The brackets could be easier and a little bigger.

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6 of 6 found this helpful

Boss Bluetooth speakers

Bruce from Elbow Lake, MN on 8/7/2016

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Easy to install, easy to connect, nice product! Decent sound...

Pros: Easy install.. Easy connect

Cons: Could use more bads

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1 of 1 found this helpful

Not impressed.

robert from Petoskey, MI on 8/6/2016

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I didn't expect much for the price. Don't even try to play rock music. Keith Whitley and Clint Black sounded just ok, Metallica, don't even try.

Pros: Inexpensive, well built.

Cons: No base, can play limited types of music.

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4 of 5 found this helpful

Works great

Jacob from MS on 7/1/2016

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I put this set up on my rzr 900 I have been in the mud and water pressure washed them and they are still working no problems have to modify the mounting brackets but other than great setup

Pros: Sounds great for the money

Cons: Mounting brackets

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5 of 5 found this helpful

Boss MCBK420B

Crutchfield customer from Roy, Ut on 5/27/2016

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Bought my bike Aug 2015 and had the Harley shop installed the Boom Audio speakers, and blew one of the speakers after a few months. Harley wouldn't warranty them. Bought these Boss speakers and absolutely love them. Great price, great sound and great quality. I can hear them driving 90 mph whereas the Harley ones I could hardly hear at 70 mph.

Pros:

Cons:

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12 of 13 found this helpful

Boss MCBK420B

Hal from Bessemer, Al on 5/21/2016

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Great System

Pros: Can be heard well on bike with cobra exhaust

Cons: Needs more bass

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4 of 5 found this helpful

Boss MCBK420B

William from Lake Lure, NC on 4/18/2016

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Bought this for a side by side UTV for the convenience of prewired and that is was designed for a UTV. The clamps that hold the speakers to the roll bars are too small and new ones needed to be made. The wire from the speakers to the harness all had to be but with additional wire place in for additional length (at least 2' per run). The sound is not bad for the price but the amount of work was not worth the end result.

Pros: none

Cons: speaker clamps too small; not enough wire. Too much work for a prewired system

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1 of 6 found this helpful

BOSS KAWASAKI MULE

JAMES from Herculaneum, MO on 3/30/2016

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GREAT SOUND FOR THE MONEY EASY TO INSTALL LOOKING AT ANOTHER ONE FOR MY POLARIS RANGER BUT CONSIDER GOING TO THE 4 SPEAKER

Pros: EASY TO INSTALL

Cons: HAD TO REMOVE WIRES FROM CONNECTOR TO MOUNT

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3 of 3 found this helpful

Side by Side Sound

Davy from Leesburg, GA on 3/6/2016

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The ONLY negative this is that the brackets are made for motorcycle handlebars and I had to modify the brackets. The speakers sound VERY GOOD even with the aftermarket exhaust.

Pros: Sound is very good

Cons: Mounting brackets need revamping.

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2 of 6 found this helpful

Blows my mind

Harold C from beggs, OK on 3/3/2016

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This product is amazing for the money. I can hear it even on the highway doing 65. It's awesome to pull up to a stop sign and see people singing along with my music because they can hear it. A great product easy install took me probably 30 minutes and most of that was spent hiding wires because I'm ocd. If your on the fence go for it you won't regret it.

Pros: Easy install, price is awesome, looks good on the bike, fits almost any size handle bar.

Cons: I didn't buy it sooner

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5 of 5 found this helpful

Impressed!

Chris from edgewater, FL on 2/13/2016

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I originally had a another brand system on my bike that I paid around $150.00 for and only lasted about 2 years before the speakers crapped out. I figured for the price of this system I would be getting about the same quality but to my surprise, the overall appearance of this system is 10 times better. Sound is much better then expected also. Like other reviews posted, they are not much for bass but that doesn't bother me to much. As far as longevity, we will just have to see but so far I am extremely please.

Pros: price, ease of installation, good sound

Cons: lack of bass

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3 of 3 found this helpful

Boss MCBK420B

Silverback from South Carolina on 11/12/2015

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Great sound for the price/versitile-volume controle works well with ballancing rear bag speakers

Pros: Just nice easy install

Cons: none

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1 of 1 found this helpful

Boss MCBK420B

Crutchfield customer from Colorado on 11/12/2015

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easy install. good looking. Great Sound, I love the blue tooth availability, i used zip ties to mount it and the volume control.

Pros: blue tooth

Cons: could use a bit longer volume leads. completely water seal the amp.

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2 of 2 found this helpful

Good sound for the price

Digger from North Carolina on 11/6/2015

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Good sound and easy installation, especially for the price. Very happy with the system.

Pros: Inexpensive, easy to install

Cons: none

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3 of 4 found this helpful

Boss MCBK420B

Crutchfield customer from Alabama on 10/29/2015

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Great product. Blew me away with how loud these speakers were. I put them on a Can Am Maverick and they sound like they are twice the size of what they really are. I had to get different clamps than the ones supplied to fit around the 2 inch roll cage of the Mav but it was not a hard fix.

Pros: Sound, ease of installation, good Bluetooth connection.

Cons: Clamps supplied will only fit up to 1-1/2 inch bars but an easy fix if you need bigger clamps.

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3 of 3 found this helpful

Boss MCBK420B

Crutchfield customer from Pembroke Pines, FL on 9/20/2015

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Too new to judge too much but great price, appears to have good build quality, good Bluetooth connection.

Pros:

Cons:

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2 of 3 found this helpful

Boss MCBK420B

Crutchfield customer from South elgin, il on 5/22/2015

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Easy to install. Loud good sound. Great speakers for the money.

Pros:

Cons:

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2 of 2 found this helpful

UTV Boss

Crutchfield customer from Chattanooga, Tennessee on 5/10/2015

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Only used it once, but seems to do the job.

Pros: pretty easy to install.

Cons: Had to take the wires back out of the plastic connector to run the wires. Would like to have a way to adjust the bass & treble.

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5 of 5 found this helpful

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<< >>

More details on the Boss MCBK420B

Product Research

Features

Amplifier Inputs: The amp has four inputs; RCA jacks on the amp, a female 3.5mm mini-jack on the amp, a male 3.5mm mini-plug attached to the amp with a 6' cord, and wireless Bluetooth. All four are inputs are live simultaneously, so if more than one is connected, selection must be made by turning all but one source off.

Note: If more than one source connected to the line inputs (RCA and 3.5mm) is turned on, it's likely you'll hear static through the speakers in addition to music, even if the source is muted or paused.

Speaker Mounting: The speakers are designed to mount to a round tube using the adjustable stainless steel clamps. Six different spacer sizes are included for use with tubes from 5/8" to 1-1/2" (approximately). Once the speakers are in place, but before the brackets are tightened, you can adjust the mounting angle. After mounting, the speakers can still swivel almost 360°.

Wiring: All the wiring is fixed length and already attached to the speakers and amplifier. Each speaker has a 37" input wire attached and the wires from both speakers are attached to a single Molex plug. The power and ground wires extend 74" from that same Molex plug and power wire has a 5 amp in-line fuse. The 22" speaker output wires are attached to the amplifier and terminated with the mate to the speakers' Molex plug.

Volume: The rotary volume control has a 76" cable attached that plugs into the amp and mounts in a round hole in a panel, 0.27" diameter.

Dimensions:

  • Speakers:
    • Width: 4-1/8"
    • Height: 4-1/4"
    • Mounting Height: 5-1/2" (above center of the bar to which the speaker is mounted)
    • Depth: 4-3/4"
  • Amplifier:
    • Width: 2-5/8" (3-1/8" including mounting flange)
    • Height: 1-5/8"
    • Length: 3-5/8" (4-5/8" including wiring)

Specifications:

  • Voltage: 10-16 volts DC
  • Power Rating: 120 watts (RMS) / 600 watts (Peak)
  • THD: <0.1%
  • Signal to Noise Ratio: >85 dB
  • Channel Separation: >50 dB
  • Frequency Response: 80 Hz - 15 kHz
  • Sensitivity: 150 mV - 1 V

Extended Warranty: Units purchased from Crutchfield after 3/1/2015 carry an extended warranty relative to purchases from Boss' standard dealer network. The new warranty is 3 years parts and labor.

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
Supposedly it's good for motorcycles and i want Bluetooth speakers for my Harley [ Joseph  Feb 22, 2019 ]
A
Good reviews, and bought a Boss receiver for my car that I'm happy with. [ Steven  Jun 03, 2018 ]
A
Good product, good reviews [ Peter  Aug 12, 2017 ]
A
Liked it [ Yolanda  May 29, 2017 ]
A
Good product, good value, good customer service [ Todd  Nov 17, 2016 ]
A
From reviews I read online. [ Terry  Aug 13, 2016 ]
A
Just got a four wheeler [ zackery tyler  Mar 18, 2016 ]
A
Price [ ronald  Feb 13, 2016 ]
SHOW MORESHOW LESS

5 questions already asked

Q
can you add an amp with this unit?
[ rick  Mar 30, 2019 ]
2 answers
A
Bill is correct that this comes with an amp! But as for adding another amp, there are no preamp outputs on the amp in this system. However, like with many factory systems, you can tap into the speaker wires coming out of this amp and send that to speaker level inputs on another amp My Bio: https://www.crutchfield.com/bio/Paul
[ Paul  Apr 16, 2019 ]  Staff
A
Comes with the amp
[ Bill  Apr 10, 2019 ]
Q
is the amp and speakers waterproof?
[ Daryl Christoph  Sep 23, 2018 ]
4 answers
A
Yes they are, it is marine grade meaning you can have them on a boat. I have mine mounted on my bike and have had it sitting in the pouring down rain with no problems. I would not submerge them in water but getting them wet should pose no problem.
[ Steven  Sep 25, 2018 ]
A
Yes
[ Robert  Sep 25, 2018 ]
A
Dont know haven't used them near or around water
[ Reynol  Sep 24, 2018 ]
A
Water resistant...mine has had a couple of hits with rain and still ok. I do let them dry out before running them tho. I think there are limits to them.
[ Timothy  Sep 24, 2018 ]
Q
The description says it supports simultaneous audio. So if I had my phone hooked up via Bluetooth and a VHF radio hooked up via audio input the radio would come across over the phone audio/music when there is radio traffic?
[ Theodore  Nov 15, 2017 ]
5 answers
A
Sorry but I haven't test that scenario, whenever I connect my phone via Bluetooth I don't turn on the radio.
[ EDWIN  Nov 28, 2017 ]
A
It should. I Bluetooth Pandora though my phone and GPS directions broadcast over the audio. Very hand on motorcycle trips!
[ donald  Nov 21, 2017 ]
A
"The amp has four inputs; RCA jacks on the amp, a female 3.5mm mini-jack on the amp, a male 3.5mm mini-plug attached to the amp with a 6' cord, and wireless Bluetooth. All four inputs are live simultaneously, so if more than one is connected, selection must be made by turning all but one source off.: You will find this information, and more, by clicking the "Details" tab on the unit's main webpage. I hope that helps. My Bio: https://www.crutchfield.com/bio/Ryan
[ Ryan  Nov 20, 2017 ]  Staff
A
I.T will come over and lower the volume of the music player
[ Luis  Nov 20, 2017 ]
A
I do not believe that's what it means. It means you can plug in one device and Bluetooth another but you can't listen to both at the same time.
[ Bruce  Nov 20, 2017 ]
Q
What is the lengh and width of the amp? I am trying to find a good spot to put it on my 2016 Honda foreman 500.
[ jfeathers12  Jun 27, 2017 ]
2 answers
A
3 1/4" L X 2 1/2" W X 1 1/2" D i installed my amp with tie wraps on the upper frame of the bike behind the forks. speakers went on the handle bars, plenty of wiring to reach battery for power.
[ CHRISTOPHER  Jun 27, 2017 ]
A
4''x4'' ,,1 1/2'' in hight
[ Cristobal  Jun 27, 2017 ]
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