BOSS Audio Systems MGR350B Marine Boat Stereo Gauge Receiver – Bluetooth Head Unit, No CD DVD Player, Built-in 4 Channel Ampl

4.4 4.4 out of 5 stars | 2,288 ratings

Price: 108.32

Last update: 01-10-2025


About this item

Bluetooth - Play and control music through your smartphone or MP3 player as well as apps like Spotify / Pandora, wirelessly
Weatherproof - The MGR350B has been outfitted with the latest weatherproofing techniques such as front panel UV coating, PC board with conformal coating. It has an IPX 6 rating for protection against splashing water
Inputs - The USB port gives you the option to have a vast library of audio files at your fingertips. The auxiliary input is compatible with audio output from smartphones and MP3 players. USB charging
Outputs - Use the front & rear or subwoofer pre-amp outputs to hook up your speakers or subwoofer. Specs - Dimensions: 3.5” x 3.5” x 3.8”, Weight: 1.1 lbs., 60 watts x 4 channels
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

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Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Product Warranty: For warranty information about this product, please click here. [PDF ]

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BOSS Audio Systems MGR350B Marine Boat Stereo Gauge Receiver – Bluetooth Head Unit, No CD DVD Player, Built-in 4 Channel Amplifier, Weatherproof, USB, USB Charging

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Top reviews from the United States

Woody Moss
5.0 out of 5 stars Very nice
Reviewed in the United States on October 27, 2024
Great upgrade to my old stock head unit that didn’t have Bluetooth. Fit in same hole in pontoon dash and hookup was easy. Sound is better than stock with same speakers
Amazon Customer
5.0 out of 5 stars Works wonderfully!
Reviewed in the United States on October 8, 2023
I woke up this morning, and decided to get to work and install my newly ordered boat radio that I bought a week ago. Yesterday, I opened up the package and quickly breezed through the typical wiring instructions, and then looked at the mounting instructions. I did not have a hole cut in my boat console yet, so I went to the hardware store and purchased a 3" hole saw for my power drill.
So this morning I cut the hole, cleaned the area, mounted the radio in about 25 minutes, then wired the radio. I turned on my radio switch on my rocker panel and it came right on. I tuned to a station and it sounded great, and clear. My other radio did not have near the reception that this radio gets.
Then I got my phone out, and linked it to the radio...super easy.
It is only day one, but so far, hands down, best boat radio ever!
Amazon Customer
5.0 out of 5 stars so far so good
Reviewed in the United States on July 17, 2024
when shopping around for this style of marine stereo, i saw a ton of bad reviews for all of them, all saying pretty much the same thing... fog behind the glass, heats up, only worked for a short time, etc... So far, this thing has worked flawlessly, no problems whatsoever. I probably shouldn't be posting this, cause now it will die on me. I'm not known for babying my equipment, so kind of waiting for the other foot to fall, but as of now, 5 months since install, no complaints. will update if needed.
Fernando d rocha
4.0 out of 5 stars Sounds good
Reviewed in the United States on October 9, 2024
Sounds good easy install
Norberto
5.0 out of 5 stars Very powerfull radio in a small footprint.
Reviewed in the United States on July 14, 2018
Well I am not much of a reviewer but this time I wanted to write something about this radio. I got it very fast and since I couldn't install it immediately I decided I was going to test it at home with a speaker box I had and an external power supply. The speakers used in this test where 2 pioneer 6x9 4 way 350W speakers, and the power supply provides 13.8V at 22 amps (it doesn't draw that much current for sure). Well let me tell you that this little radio can move the speakers very well, and it is loud. I measured the sound pressure originated at 3ft with a white noise file and it measured 88db, if I put a sound track on the peak was at 90db at 3ft. Now for me that is more than enough power. Now the units gets hot in very little time when you push it near the max volume, and since the back is all sealed up, and the cover is plastic, I hope that overheating doesn't start to be a problem. Operation is very easy and BT pairing is as easy as it gets. I hope to install it on the boat soon enough and if it works as good as it did home I am sure that this is a winner.
Rattler
1.0 out of 5 stars 2ND UPDATE- ALL AUDIO QUIT Update- It was a bad radio
Reviewed in the United States on September 22, 2018
NEW UPDATE - GOT JUST ABOUT TWO WEEKS OF GOOD SOUND, WAS HAPPY WITH THE RADIO, UNTIL TODAY - PLAYING FINE , HAD SOME STATIC THEN RADIO QUIT ALL SOUND. STILL LIGHTS UP , SHOWS WHICH STATION, BUT NO SOUND AT ALL - TRIED BLUETOOTH SHOWS SONG PLAYING ON DISPLAY BUT NO SOUND AT ALSO. TRIED RESETTING ALL SETTING BUT NO SOUND OTHER THAN MINOR CRACKLE WHEN TURNED ON . SO NOW I HAVE A THREE INCH HOLE IN MY DASH, WITH A DEFECTIVE RADIO.

AGAIN

Wanted to post an update- ordered a replacement MGR350B and hooked it up to the same speakers but on "the bench " and the new radio plays GREAT. Can even you ent on the "Xbass" setting and it plays.
So it turn out I got a bad radio, lesson learned to bench test before soldering and installing the right way and make sure it works. I have literally installed DOZENS of radios over the past 40+ years and have never had a problem.
Now I get to do this the HARD way, either under the hood of a utv with wires cut to lenght or start completely over again and cut it all back out. This sucks, but at least I found the problem. But with a broken back and psoriatic arthritis this is really going to be painful to do under the hood.

After spending all afternoon soldering and heat shrinking and making sure all connections are secure, I place it in the dash turn it on and it does play. Try to set the eq sound and any bass over 3 and half volume causes major sound distortion. Changed settings around and have found that this head unit just does not have enough output power to drive four speakers with any decent sound. Even disconnecting one pair or the other it does the same thing just with a little more volume than with four speakers connected. Any bass combined with any volume causes the sound to completely fail. I have the same speaker set up on my EZGO with a Sony head unit and it rocks no problem. The dash on Trail Wagon utv has no space to use a din radio so I had to go with a gauge style like this which fits and looks great but sounds terrible.
Now after doing a professional soldered, double heat shrinked install ,all wrapped in taped secured so no branches can undo anything on a trail I'll have to go back in and cut it all back out under the dash and rewire for an amp under the dash. I had a good laugh turning on the XBass setting, this unit just said- no, with any volume over 10 it just cuts out. No power to drive speakers.
At LOW volume this is a nice unit, you can get good sound.

Going to put an amp in and see what happens, now that I have a three inch hole in the dash I kind of have to try to get the sound I want out of this unit. It does look good but it needs to sound good as well. I'll update after I get the amp in.

Out of curiosity maybe Amazon and sent me a bad new speaker, I hooked them up on my EZGO with the Sony head unit and they played fine. I was really hoping this unit would work fine without an amp because I don't wanna add another device in the electrical system to add more draw. Maybe I got a bad radio? I see a bunch of the reviews bragging on how loud it is.
elramone
5.0 out of 5 stars Bad ass
Reviewed in the United States on October 30, 2024
This radio is small footprint and huge on features and sound
Totally radicalized my helm and boat sound system
Mario Mantilla
5.0 out of 5 stars Buen radio
Reviewed in the United States on November 4, 2024
Funciona muy bien y buena potencia

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