






🏍️ Turn your ride into the ultimate soundstage—because silence is so last season!
The BOSS Audio Systems MC420B is a compact, weatherproof 3-inch motorcycle speaker and Class D amplifier system delivering up to 600 watts of stereo sound. Featuring Bluetooth connectivity with a 25-meter range, inline volume control, and durable mounting brackets, it’s designed for motorcycles, ATVs, and UTVs. Backed by a 3-year platinum warranty, this system offers professional-grade audio performance and rugged reliability for riders who demand premium sound on every journey.










| ASIN | B00IBI50NK |
| Additional Features | Bluetooth |
| Antenna Location | Volume |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Battery Average Life | 10 years |
| Best Sellers Rank | #4 in Powersports Speaker Systems |
| Bluetooth Range | 25 Meters |
| Brand | BOSS Audio Systems |
| Built-In Media | BOSS AUDIO MC420B |
| Color | Silver |
| Compatible Devices | Smartphone, Tablet, MP3 Player |
| Compatible with Vehicle Type | ATV, UTV |
| Connectivity Protocol | Bluetooth |
| Connectivity Technology | Bluetooth |
| Control Method | App |
| Controller Type | Remote Control |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.3 out of 5 stars 7,035 Reviews |
| Enclosure Material | Metal |
| Global Trade Identification Number | 00791489121842 |
| Impedance | 4 Ohms |
| Input Voltage | 12 Volts |
| Is Electric | No |
| 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 MC420B 3 Inch Motorcycle Speakers and Amplifier Audio Sound System – Class D Compact Amplifier, Weatherproof, Volume Control, ATV UTV Compatible, For Stereo, Tweeters |
| Item Weight | 4 Pounds |
| MP3 player | No |
| Manufacturer | BOSS Audio Systems |
| Maximum Range | 25 Meters |
| Model Name | MC420B |
| Model Number | MC420B |
| Mounting Type | Handlebar Mount |
| Number Of Circuits | 2 |
| Number of Audio Channels | 3.0 |
| Number of Batteries | 1 12V batteries required. |
| Number of Items | 2 |
| Number of Power Levels | 2 |
| Power Source | Battery Powered |
| Signal-to-Noise Ratio | 85 |
| Speaker Maximum Output Power | 600 Watts |
| Speaker Size | 3 Inches |
| Speaker Type | Tweeter |
| Specific Uses For Product | personal, gaming, business |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 3 Inches |
| Tweeter Diameter | 3 Inches |
| UPC | 791489121842 801940118035 506087193098 012304293811 804892188439 |
| Unit Count | 1.0 Count |
| Warranty Description | 3 YEAR PLATINUM DEALER WARRANTY |
| Warranty Type | Extended |
| Water Resistance Level | Water Resistant |
| Wireless Technology | Bluetooth |
| Woofer Diameter | 3 Inches |
D**N
2008 Harley Davidson Sportster 1200 Install!
Quality product! Sound is awesome for a $60 system, at 40mph and lower its great. It's plenty loud enough, but as you approach 60 mph and up truth is no stereo is going to sound like a home audiophile system. Bottom line is 'buy it'! Customer service is first rate, they are great! Also, I read some complaints about bass. When I first connected the speakers they too sounded a bit flat. I clicked onto my Poweramp music player and set it to large concert hall and max bass and presto... truly impressive rich sound! My install - I mounted the speakers on the handlebars just inside the windshield. Then, ran all the wires and the amp into a small, front fork mounted, 'tool bag' type pouch. The main issue is the red hot wire. I must have watched a dozen youtube videos on this subject. I usually ride with my high beam on. I know its obnoxious, but down here in Florida anything you can do to stay visible is a life saver. I unscrewed the chrome cover that holds the daymaker headlight in place. Sadly, Harley does not provide an auxiliary wire in the headlight wiring harness of Sportster's. At least not in mine. There are three wires entering the headlight assembly from a hole in the back. Black wire is ground, white wire is High Beam, yellow wire is Low Beam. I used a plastic splice connector from Home Depot to connect the red Boss power wire to the white High Beam wire. (AMP Splice Tap Connectors 10 pack). The hole in the back of the headlight assembly where Harley runs the headlight wires - Harley runs the wire harness though the hole with a rubber bushing that protects the wires and keeps water from getting in. I tried to slice the rubber bushing so that I could add the Boss red hotwire but it was cramped quarters and I couldnt get in there without taking the chance of cutting the headlight wires also. You may be able to do it, I couldn't. I ran the red power wire through the hole and at the point where it touched the metal headlight housing I covered the wire with an extra couple of layers of electrical tape to protect it from the housing wearing through the insulation and shorting the amp. Then, pushed the rubber bushing back into the hole. It wasn't a perfect fit, there was a slight gap because of the red wire I installed. It also wasn't a terrible fit - and then I put the headlight and headlight retainer back into place. After continual testing at every stage, and when I was sure all worked as it should, I used a dab of black silicone caulk and filled in the gap between the rubber bushing and the outside of the headlight assembly. This also helped hold the red power wire in place and reduce any chance of shorting against the headlight casing. I ran the ground wire outside the headlight housing for a few inches to a windshield mounting bolt and tightened it down. (I didn't want the ground wire taking up space going through the headlight hole, so I split the red power wire and the ground wire before the power wire entered the headlight housing hole. You may find it works just fine running both wires through, especially after using caulk to close up the hole where the wires enter.) Finally, I used zip ties to connect the volume button to the left side windshield mount, very close to where my hand naturally fits onto the handlebar grip. I believe you want the volume control where your left hand can safely get to it without too much reaching. Final result is my Boss audio system works only when the high beam is on. And when the bike is turned off there is no chance of the amp staying on and draining the battery. Also, my install required no drilling, no running wires under gas tanks and seats, and no toggle switch. I love having music now!!! Safe riding!
M**R
Great sound and price!
Great quality, sound and price! Not much bass so I pair with the Boss Slim8. Perfect!
C**M
Great budget speakers! Insane bluetooth...no joke its instant. Sound is great!
READ FULL REVIEW!! I have seen a lot of reviews on here about the bass and sound quality not being very good and I have to say do not let the reviews lead you astray from what these really are, great speakers at incredible price. You get great sound on a budget. The highs are crisp and mid range just as good. I was at 85 with cross wind with the volume half way and I had no problem hearing these speakers. I have stock exhaust so not incredibly loud. I agree that there is nearly no bass. But these are not $300 kuryakyn speakers or Rockford Fosgate. The install was very easy. I would recommend either having a second set of hands when mounting the speakers to the handle bars (which I did not have) or using a pliers or vice grip and bend the clips around the bars first. Wiring was a breeze. I went right into my ignition wire and turns on and off when I turn the key. Amp went under my seat. I am not kidding when i say that the bluetooth is incredible. It instantly connects to my phone withing 3 seconds of being powered on. Delivery was 2 days. Kit comes with everything you need to mount and enough wire. Took me one hour to do everything and I am not very experienced. Good luck! I recommend these speakers!
J**N
Great sound quality
Haven't installed the unit yet but I had the exact system in the past and the sound quality was great and the installation was a breeze for diy. Highly recommend.
L**E
Worth every penny
I don’t do reviews but I had to express my gratitude for these speakers! After hearing reviews and carefully weighing my options for pricing and quality, I can say that these speakers are well worth the value! I have a 750 original pipes and a 800cc and these speakers are heard BEYOND expectations on both motorcycles!! It makes the ride so much more enjoyable! They have been in the rain and still work as new! Definitely recommend for motorcycle riding and enjoyable experience!
T**Y
Loud and crisp sound..
This thing is great! I actually purchased it for my old Jeep. Placed the speakers under the seats and the amp in the console!. Works great!
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.
C**S
Impressed with BOSS Customer Service
This product works great for the price. Is loud enough for my Harley up to about 50 MPH on the CA highway . The customer service I received with this product was exceptional. I received product support from Christian and Egypt. They were very reasonable, prompt, and professional. This is a quality budget product 👍
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