BOSS Audio Systems MC900B 4 Channel Amplifier for ATV UTV Car Marine - 500 High Output, Low Level Inputs, Full Range, Weatherproof, Bass for Subwoofer

Easy to install, all clearly labeled. Excellent sound quality, small in size, easy to place in a hidden area, and the controller has a nice long cord so you can place it anywhere you want. The bluetooth connection is seamless and connects almost instantly. It’s an excellent value for the price, i haven’t bought a radio or amplifier that i have liked more. I use it with an iPad that i use for my radio and it charges it seamlessly. The USB cord only charges though so keep that in mind, its bluetooth only, but like I said it’s a nearly perfect bluetooth connection. It will also run a separate amplifier for a subwoofer or whatever you want. It’s a fantastic Amplifier with a great sound output and good volume control. No radio needed!!

I picked this up on a black Friday deal last year for my 91 Corvette. I'm really impressed with this little unit. I'm running some mid range pioneer speakers and it's very loud. Loud enough that driving 80 with the top off and you can still hear it clearly. I'm also using a software EQ which helps a bunch. There is no built in fader as others have stated. But you can easily wire in a fader control for $12 or so. This unit supports 4 and 8 ohm speakers which is a nice feature. Overall I'm really happy with it. No idea on longevity yet.

Installed this unit in a classic truck, so that I could stream music from my phone and leave the original 3-hole head unit in dash for an original look. Installion was pretty easy and it fits easy under the passenger side of my bench seat. While it connects to my phone via Bluetooth flawlessly, I'm a little disappointed that front & rear power can't be adjusted; my rear speakers don't hit as hard as I would like.

I bought this amplifier because i wanted to play music but did not want a complete radio system as car is build for street and strip. This Bluetooth amp was what i needed. i installed a radio delete plate in the factory location as this is where i will mount accessory switches (electric fans and fuel pump) and start button. This unit is small enough to hide anywhere under the dash or in glove box. The sound is excellent for its size. I have it hooked up to a pair of 6.5" Rockford Forsgate P1650 speakers for the rear and the center dash speaker is the Retro Sounds dual voice cone speaker and all sounds very well - loud enough too. i play music from my iPhone. What i wish it had was an app to allow adjustments to front and rear or left to right but it truly isn't necessary as it sounds fine the way it is. What i also wish it had was a built in mic so i could answer calls and hear calls over the car speakers. For the money spent and to have very good sound in the car, this was a great option. Now, i hope it lasts. follow the instructions to the letter and make sure you have a good ground. When wiring speakers it is important to wire them correctly + / - terminals must be correct. take your time.

Installed in a classic car i did not want to remove original radio . installation was very easy due to small size it is hidden behind glove box. Paired with my phone very good. connects when i turn key on 1 beep its connected . Has very good power no sound adjustment though bass is low can add amp if desired i am very happy much better that 1 speaker AM. LOL

I have the product installed in the glove box of my 1951 Chevy truck. I bought the Item in 2022 but didnt get it installed until late 2024 it worked well for a few months now the music comes on and off. I sure they will say I've had it past the support policy. I should have lasted a lot longer than a few months. Very disappointed 😞 I will repost if I get some help on this.

Awesome product! I have this in two Japanese imports that I wanted to retain the OEM radio (that doesn’t work in the USA) but still have tunes. It was easy to wire this system into the OEM speakers and now I have music. Side note, this is a better amp then most head units so you can even upgrade your speakers for better sound.

First off, this does nearly exactly what I wanted it to. I put this in my classic car and able to leave the non-functioning stock radio in the dash for a period look. Issues I have with it. no physical power switch without using the remote. When I first installed it (without the remote), it powered on instantly. With no immediate volume control or power switch I was unable to turn it off unless I turned the car off or fumbled for my phone to turn the volume all the way down. I later installed the remote and that helps. I also installed an inline power switch. The biggest problem I had was within 5 weeks of installation it stopped powering on. It was about 70 days, and the Amazon return window was 60 days. I contacted BOSS directly and they were great to work with. After determining it was indeed faulty they sent me a replacement. I need to install it still. Hopefully it will last longer than 5 weeks this time.

Kubota XG850 This is the easiest, fastest, cleanest install ever. Works perfectly and sounds pretty good. It's only been a couple weeks hopefully it stays working this good. All parts seem to be good quality.

なかなか販売されてなく探して買えましたマリンジェットを、爆音にします

Nice modern replacement for an old AM/Fm tape deck in my 1986 Harley Davidson. Fit in easily where the tape deck was originally installed with a little bit of creativity. I have it connected to a couple of Hogtunes speakers and I’m happy with how it sounds. Easily connect to my iPhone with Bluetooth and also keeps it charged with usb connection.

水上バイクで使用の為、格安で安定したアンプです。 通常、水上バイクで使用すると、もって1～2シーズンです。 1シーズン持っても、この価格ならリピートします。

なんか電源がON/OFFしょっちゅうするので調べてみるとマイナスのアース線がコネクターから抜けてました。 不良品です(ﾉД`､)