BOSS Audio SystemsMGR350B Marine Boat Stereo Gauge Receiver – Bluetooth Head Unit, No CD DVD Player, Built-in 4 Channel Amplifier, Weatherproof, USB, USB Charging

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.

This is my second BOSS. The first one was still playing strong after 2 years of use and abuse in our boat. (We normally use every weekend 9 months out of the year. Got to love Florida. The old radio was still going strong until user error caused it to pop an internal amp or driver. (I was installing a new battery in a tight space and hooked the negative and positive backwards. (Yes there was some choice words said for not paying attention on my part.) The radio pushes the 2 6.5" speakers well. It does distort at full volume but for the money it does great. It's plenty loud at full throttle (still running a 2 stroke motor.) For out of the box easy install I would definitely recommend.

Works great

Boss marine BT radio sound is ok. Sound quality is not at level of JBL gauge radios but it's much cheaper and after having 3 JBL radios (2 models) fail, I was motivated to try something new. This Boss radio diameter was way smaller & fit through my existing gauge radio hole. I made a circular adapter from a cup holder ss trim (with a flange to keep it centered). Seller was excellent, and the radio is good. Radio has an RCA pair for "front line out" and a "rear line out or sub-woofer". I have a sub-woofer and an amp (for which I wanted both RCA pairs for a front and rear lines out). My amp had an extra output line, so I used that for the sub-woofer, but I wished I had another sub-woofer RCA pair on the radio.

I installed the MGR350B in the dash of my Ranger bass boat where I removed an inoperable round Lowrance Depth Flasher. It fit perfectly in the hole without any additional cutting. I used 8 gauge Boss amp wire kit and connected it to a small Sony Xplod 250w two channel amp and used 2 Boss three way 6x9's in carpeted boxed resting on the floor under the 2 steering/passenger consoles. This head unit's Bluetooth connects with my Samsung note 8 phone faster than any other device I have ever paired with it. There is plenty of full range sound and way more volume than I need. I feel I could easily connect 2 more speakers to this radio and amp combo and it would sound even better, but there is no need to, the pair of 6x9's are excellent. I have used boss speakers in 3 boats now and they all performed well. I recommend this radio if you need a round one. This is the first vehicle radio I have ever installed myself and the instructions were good, but I also watched a few YT videos to increase my knowledge before hand.

Have a new 2024 boat and never cared for stock stereo, this unit sounds way better and looks nicer. Also has me thinking of adding the rear speakers… has a cool rubber face cover too.

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.AGAINWanted 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.

Muy bonita y fácil de poner