BOSS Audio Systems MCKGB450B.6 6.5 Inch Speakers & Marine Boat Gauge Stereo - Bluetooth Head Unit, No CD DVD Player, AM/FM Ra

4.5 4.5 out of 5 stars | 307 ratings

Price: 154.61

Last update: 04-07-2025


About this item

Bluetooth - Play and control music through your smartphone or MP3 player as well as apps like Spotify / Pandora, wirelessly
Weatherproof - The receiver is IPX6 rated to protect against splashing water. The Two 6.5” speakers have been outfitted with the latest weatherproofing techniques
Inputs – USB, auxiliary. Outputs - Use the front/rear and subwoofer outputs to hook up your speakers (front left / front right and rear left / rear right) and subwoofer
Receiver Specs - 4.45” x 4.41” x 4.41”, 1.96 lbs., 60 W x 4. Speaker Specs - Dual cone for extended frequency response, 4 Ohms, Frequency: 80 Hz to 20 kHz, 7.52” x 7.52” x 3.11”, Mounting Depth: 2.18”, Mounting hole: 5.75”, Weight: 2.76 Lbs. (Pair)
BOSS Audio Systems provides a powerful 3-year platinum online dealer warranty so long as the purchase is made through Amazon.com. We strongly encourage professional installation of this product to ensure proper and safe functionality

Product information


Top reviews from the United States

  • Stan
    5.0 out of 5 stars Great unit one small issue.
    Reviewed in the United States on April 6, 2020
    Just installed it yesterday. Easy follow instructions. Sound is way better then I had anticipated. For our fishing boat it is way more then we will ever need. Easy use and looks nice. We did have on issue with the order. The nuts for the screws were not the correct ones. The screws were to small for the nuts. This slowed down installation cause I had to find some to make it work. This was a surprise to me. The screw and nuts were pre packaged in thier own bags. This was a first for me ever that screws and nuts were not the right size.. Otherwise great unit.
  • Dan Guy
    5.0 out of 5 stars Great for the price
    Reviewed in the United States on December 26, 2020
    For the price, it’s got great sound and features. Installed in a UTV and is plenty loud to hear the music from an idle up to top speed. I’ve only turned it up halfway before it was too loud for my 50 year old ears. Bluetooth hooks up instantly and the FM tuner works well with the supplied antenna.
  • Garrett Rezler
    5.0 out of 5 stars Loud enough for Polaris Ranger at full speed and more!
    Reviewed in the United States on April 21, 2021
    This was a DIY project for my sxs. This radio is sweet everything works as it should. The antenna works well in my area we will see when I go out in the trails. The speakers are super loud! They get very distorted at stupid high decibels but I don’t need it that loud. I turn this thing up to about 33 with Bluetooth and it is perfect even when you go 50 mph. This is exactly what I was looking for! To have good bass you will need a subwoofer which I didn’t install.
    Customer image
    Garrett Rezler
    5.0 out of 5 stars
    Loud enough for Polaris Ranger at full speed and more!

    Reviewed in the United States on April 21, 2021
    This was a DIY project for my sxs. This radio is sweet everything works as it should. The antenna works well in my area we will see when I go out in the trails. The speakers are super loud! They get very distorted at stupid high decibels but I don’t need it that loud. I turn this thing up to about 33 with Bluetooth and it is perfect even when you go 50 mph. This is exactly what I was looking for! To have good bass you will need a subwoofer which I didn’t install.
    Images in this review
  • Blake P.
    4.0 out of 5 stars Works great with Bluetooth!
    Reviewed in the United States on October 3, 2022
    Sounds great, but it's a little tricky to install!
  • Jeremiah A Glisson
    5.0 out of 5 stars Great sound, great value
    Reviewed in the United States on April 23, 2021
    Really impressed with this radio system so far. I am amazed at the functionality for the price point. You really get a lot for the dollar. High recommend. System is easy to use and sounds great.
  • Paul
    3.0 out of 5 stars weak radio antenna
    Reviewed in the United States on August 3, 2022
    very weak radio antenna doesn't pick up signal very well on my pontoon boat there good radio coverage in my area but this antenna can't seem to hold the signal while moving only when stopped
  • Doug G
    5.0 out of 5 stars Who needs an amp, this has it all.
    Reviewed in the United States on December 15, 2020
    It's compact enough to fit in tight places versatile full function did not need to install an amp was able to install in 20 minutes in a homemade project. Was blown away at how awesome it sounds. By the way this is the second one I made. My main reason was because of the built-in weather radio feature. We use it on our four-wheelers when we're out deep into the mountains when you can't tell when mother nature's going to come and sneek up on you.
    Customer image
    Doug G
    5.0 out of 5 stars
    Who needs an amp, this has it all.

    Reviewed in the United States on December 15, 2020
    It's compact enough to fit in tight places versatile full function did not need to install an amp was able to install in 20 minutes in a homemade project. Was blown away at how awesome it sounds. By the way this is the second one I made. My main reason was because of the built-in weather radio feature. We use it on our four-wheelers when we're out deep into the mountains when you can't tell when mother nature's going to come and sneek up on you.
    Images in this review
  • Richard H.
    5.0 out of 5 stars Defender Limited Boss sound system
    Reviewed in the United States on April 17, 2024
    I dont think this system was really intended for a UTV but with minor alterations it looks good and works well in the defender limited there is room in the roof panel for the radio and the speakers the speakers in the kit are about 1/2" in diameter to big but very hard to see that once installed

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