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🏍️ Turn your ride into a rolling soundstage with BOSS Audio’s ultimate motorcycle speaker system!
The BOSS Audio Systems MCBK420B is a premium motorcycle audio package featuring two 3-inch weatherproof full-range speakers and a compact Class D amplifier delivering up to 600 watts. With Bluetooth connectivity offering a 30-foot wireless range, inline volume control, and adjustable handlebar mounts, it’s designed for seamless integration and powerful sound on the road. Backed by a 3-year platinum warranty, this system is built to elevate your ride with durable, high-quality audio performance.








| ASIN | B00T3QBL3M |
| Additional Features | Waterproof |
| Antenna Location | For Motorcycles |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Best Sellers Rank | #4 in Powersports Speaker Systems |
| Bluetooth Range | 30 feet |
| Brand | BOSS Audio Systems |
| Built-In Media | Amplifier |
| Color | Black |
| Compatible Devices | MP3 Player, Smartphone |
| Compatible with Vehicle Type | Motorcycle |
| Connectivity Protocol | Bluetooth |
| Connectivity Technology | wired, wireless |
| Control Method | Remote |
| Controller Type | Remote Control |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.3 out of 5 stars 3,863 Reviews |
| Enclosure Material | Plastic |
| Frequency Response | 15 KHz |
| Global Trade Identification Number | 00791489123082 |
| Impedance | 4 ohm |
| Input Voltage | 12 volts |
| Is Waterproof | False |
| Item Dimensions D x W x H | 4.5"D x 4"W x 4"H |
| Item Type Name | Boss Audio Systems MCBK420B Motorcycle Bluetooth Speaker System - Class D Compact Amplifier, 3 Inch Weatherproof Speakers, Volume Control, Great for Use With ATVs / Motorcycles, 12 Volt Vehicles |
| Item Weight | 3.8 pounds |
| Manufacturer | BOSS Audio Systems |
| Maximum Range | 30 feet |
| Model Name | MCBK420B |
| Model Number | MCBK420B |
| Mounting Type | Handlebar Mount |
| Number of Audio Channels | 3 |
| Number of Batteries | 1 12V batteries required. |
| Number of Items | 3 |
| Power Source | Corded Electric |
| Speaker Maximum Output Power | 600 watts |
| Speaker Size | 3 inches |
| Speaker Type | Outdoor |
| Specific Uses For Product | Pro Audio |
| Subwoofer Connectivity Technology | Wired |
| Tweeter Diameter | 1 inches |
| UPC | 791489123082 779423617668 |
| Unit Count | 1 Count |
| Warranty Description | 3 YEAR PLATINUM DEALER WARRANTY |
| Warranty Type | Extended |
| Water Resistance Level | Water Resistant |
| Wireless Technology | Bluetooth |
| Woofer Diameter | 3 inches |
J**Y
Decent Product for the price!
Great speakers! love them work great sound very nice! Definitely recommend! holds bass decent with a nice loud voice output! video wasn’t max volume at one point i had thought it was max it wasn’t very loud in towns and cruising!
B**N
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
A**R
Not Bad
Bought this for a 04 fat boy installed it today. For the money it’s not bad. The speakers themselves seem decently made they seem durable. The clamps are attached to the bottom of the speaker and seem like maybe they could’ve been designed a little better it does come with little rubber “strips” to put in between your handlebars or engine guard and the clamp it makes them a little more sturdy. One of the downfalls I’ve seen so far is the speaker wire leads are a pretty short they reach from the handle bars to under the seat but are kind of tight not much room for running the wires. The amp seems decent too. Made of metal size is ok not to bulky I ended up putting mine in the saddle bag. It has a total of 5 leads that come off it 2 for the speakers they are about a foot long one for power which is also about a foot long then a volume knob and a Aux cord both of those are a little longer. So now the important part how does it sound? My bike has the stock pipes on it with the baffles knocked out so it’s not obnoxiously loud but it’s not quiet either between that and the wind noise you can still make out the music at 65 anything over that it gets kind of hard to hear. Sound quality is what you can expect from a $65 unit not a lot of bass and a little “twangy” but overall it’s not bad. I wish it had a better control setup for changing volume, changing song, etc but again it was only $65. Overall I’m content with it. Better than nothing and In my opinion better than dropping hundreds of dollars on a high end system. I’d recommend it and I’d buy it again.
P**S
Exactly what my scooter needed! Very loud!
Very good product! Got it installed on a 150cc scooter.. very loud! Highly recommend, dont expect much bass but it has some, exactly what i wanted!
C**Y
Highly recommend, great purchase
So far these have turned out to be a great purchase. Instructions give a very clear guide on installation. Everything being labeled makes it super simple to understand. Connecting to the system is very easy. Speakers are clear and sound great even at highway speeds. Although there is almost no bass, so upbeat songs don’t exactly sound the same. The only minor cons that I could think of so far is that the instructions don’t tell you that you will have to have some kind of wire connector to connect them to your power/ground source. So if you don’t have any, be prepared to make a run for them. The other thing is the rubber pieces that come with this are either really thin or really thick, there is no in between. I had to use the thick ones and a locking plier to get the bottom nut onto the threads and it proved to be slightly challenging.
T**E
Eh, Not Worth It *EDIT* Meh...Sure.
I always wait for a bit before I write a review because I want time to use it. It allows me to be real and fair. This, for the price, seems pretty fantastic. From a looks standpoint, it fits the bill. I have a black motorcycle this is attached to, so the matte black option makes it blend right in. Appearance, it's a 5*. Now, the reason this gets only 2 stars from me is for a couple of reasons. First and foremost, I purchased this about 2 months ago, and already, one of the speakers is blown. I always treat new speakers the same way; I run them a variety of ways to break them in. Well, I guess I did literally break it in. I would have it on with the volume way down low and up high and ranges in between, and about a week or two ago, the right speaker is blown. So, from a quality standpoint, that knocks it down immediately. As stated in other reviews, the sound quality is ok at best. Volume, this thing can get pretty loud. However, it doesn't have a great range of sound, from bass and treble. It just gets loud. Now, you can definitely hear it at highway speeds with a full face helmet. Half shells, brain buckets, whatever you want to call it, you definitely hear, until the wind gets to be a bit much. But what stands out is the lack of quality sound. Installation wise, it really isn't terrible, but it definitely isn't easy. It contains what is needed, but it is bare minimum. I added an additional kill switch so it will cut off with the engine and not stay on all the time. That's more of an annoyance, especially with how motorcycle batteries work. So with all that said, I wouldn't recommend it. It's a cheap price for sure, so I guess if you want an easy starter kit, go for it. However, I feel like I'm already forced to fix/upgrade, so this $60 some odd could've went for something better. EDIT**** I updated it to three stars. I wouldn't say it blows you away by any means. I still don't like that the speaker blew within the first few weeks of having, and I didn't even have it on full volume. That said, it holds up well in rain, and replacing the speaker with an at least decent quality 3" speaker makes it decent. I wouldn't say it's the best ever, but for the price, ease of installation and compatibility, and look, sure. Go for it if this is your budget.
D**D
Boss Speakers with Bluetooth amp
Iv got a Indian scout 60 bobber with a exhaust and it’s pretty loud, no problems at all cruising down the road at 65 and hearing them, they work awesome sound is amazing nice and clear and there not big and bulky,Iv had them on my bike a week now and they ain’t never let me down, don’t drain on your battery and the volume knob acts as a toggle no there not a reason to cut or splice like I thought I was going to half to when u cut the switch it kills all power to the 600 watt amp yes u Hurd right 600 watts on two 3 inch speakers very easy to hook up also.
C**L
Good for the money
Mounted these on my 2014 Honda Valkyrie after my JBL Cruise speakers stopped working. Pros: Much louder than the JBL, 400 watt waterproof amp, pre-wired plug and play connectors, includes wired volume control Cons: Terrible handlebar mounts, makes very loud full volume beeps when powering on and connecting to phone - volume control has no effect on these loud beeps. The Valkyrie has 1" diameter handle bars, which is very common in the motorcycle world. The brackets that come with the speakers utilize rubber strips to adjust for bar diameter. Two different thickness strips are included, 1/16 and 1/4. With the thin strips, the clamps would not hold the speakers in position. The thick strips were too thick and would not allow the mounting stud to stick out far enough to get the nut on. I was lucky that I had some 1/8 rubber sheet and made it work. The wires coming from the speakers have plugs mounted to the ends, so you cannot use aftermarket clamps unless you want to cut the plugs off to pass the wires thru the clamps, and them replace the plugs. I mounted the amp underneath my seat. The speaker leads (approx. 4 ft) were not long enough to reach the amp after routing them where they needed to go. The leads from the amp made up the difference tho, as they are approx. 2 ft long. This resulted in the plug-in connectors being under my tank instead of under my seat where I would have preferred. The lead for the volume control is long enough to allow mounting it virtually anywhere you want. The volume control does not come with any type of bracket, so you have to find a way to mount it. It does have a threaded shaft with two nuts, so fabricating a mount is fairly simple. Been raining here for two days now. Have not been able to ride yet and really try them out. My JBL's could be heard well at 60 mph, OK at 70, and not hardly at all above 75. These are so much louder that I feel they will be fine for my purposes. Cutting the wind noise out by using ear plugs will help you hear the stereo better at higher speeds.
M**K
Bon produit
Conforme à la description. Après 90 km/h. On a du mal à entendre la musique à cause du vent
O**N
Broke within a week
Speaker mounting broke within a week of installing them
A**R
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.
A**9
سماعات
سماعه ممتازه وصوت وائع
R**F
Je recommande
Tres bon
Trustpilot
1 month ago
3 days ago