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

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$99.64

$ 45 .99 $45.99

In Stock

1.PatternName:Amplifier


About this item

  • Power - 125 Watts Max x 4 @4 Ohms, 94 Watts RMS x 4 @4 Ohms
  • Specs - Dimensions - 1.75” x 6.6” x 1.75”, Weighs 2.9 lbs.
  • Bluetooth - You do not need a head unit. Just power up the MC900B and hook up some speakers to it. The included Bluetooth remote control lets you stream your music via your Bluetooth device and use apps like Spotify and Pandora
  • Auxiliary in - The Bluetooth remote is compatible with the audio output from smartphones as well as MP3 players. Just plug in and start playing
  • USB Charging - You can charge your USB devices using the USB charging port
  • Weatherproof - The MC900B has been designed to handle some light weather conditions without giving up on you. It is great for use in ATVs and boats.
  • Class AB - Class ‘A’ amplifiers have enormous amount of current flowing through its output transistors with no audio signal. Class ‘B’ amplifiers have no current flowing through its outputs with no audio signal
  • Full Range - With a Full Range amplifier you not only have the option to run your speakers, but also your subwoofers
  • BOSS Audio Systems provides a powerful 6-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


Pump out the jams on your next adventure with the Boss Audio MC900B Class A/B 4-Channel Full Range All-Terrain Amplifier. This 4-Ohm stable Amplifier features 500 Watts Max Power to keep your tunes rolling. Hook your smartphone or MP3 Player up through the Auxiliary Input to listen to your playlists. Plug into the USB Port to charge your USB-Connected devices. Bluetooth Audio Streaming lets you play your favorite music apps like Pandora or Spotify. No need for an In-Dash Head Unit to play your music. Control it all with the Inline Multi-Function Remote Control. The MC900B Amplifier features weatherproof connectors to prevent corrosion and provide protection against the elements. Feel the music with the Boss Audio MC900B. For further product details, please scroll down.


Alfred medellin
2025-09-05 10:59:43
Great product for classic cars&trucks! Connects instantly and sounds great very pleased
Walter Bragg
2025-09-03 13:54:13
Only have a few minutes of experience with it so time will tell how it really holds up. It’s really small, mounted it on top of one of my 6x9 boxes. But the Bluetooth is effortless and so far the amp pushes the speakers good. Sounds good to me. Installed this behind the seat of my 1951 Chevy truck.
Brando Online
2025-08-10 15:51:33
I was able to effortlessly connect my Samsung Note 4 Android phone to it and hear all of the audio from my phone: taps on screen, text msg tones, ringtone, Google Maps Voice-guided Nav, Spotify, etc. It will soon be tested with a Windows 8.1 Pro PC with an ASUS BT 400 dongle. If I'm able to update my review at a later time, I will let you all know how that worked out too.With this amp's lack of an built-in equalizer (mentioned as EQ going forward), you will need to have an EQ on the device you're broadcasting audio from (BT, 3.5mm, etc). Android appears to have an equalizer built in (at least on the newer versions, I'm running 5.1.x), however I probably didn't look hard enough to find the user interface where I could control and manipulate the EQ. So I jumped on the Play App Store and found a few options, some free, some paid to remove ads. I initially downloaded "Equalizer FX (Free)" to see if it worked - it did, very nicely too I might add. Please note: you will be prompted to disable the Android's built-in EQ when you initially attempt to enable the Equalizer FX EQ. This is a one-time step. After verifying it basically did what I needed, I paid for the ad-free version - hate ads! The only quirk I've found with the app, which I is associated solely with this particular app, not the amp, is that when streaming audio, with the EQ enabled and adjusted to my liking, and using Google Maps Voice-guided Navigation at the same time, the EQ freaks out and the bass boost is pumped up to what seems like the max. But again, this is an app-specific issue and not related to the amp. Just a tip for my fellow Android users who may be beginning their search on how to get up and running.Overall, I'm very, very happy with my purchase and would recommend it to a friend who was in need of a BT amp!
Jerry Roegner
2025-07-24 15:45:19
Works as Designed
Bryan Hildreth
2025-06-24 10:12:22
Bought for motorcycle amp as this is what came up, installed easy ,volume sucks and there's no adjustments for gain
James
2025-06-19 18:18:26
well satisfied with connectivity and audio quality
Soraya
2025-05-30 11:34:23
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.
Alex
2025-04-30 10:37:01
Had this installed in a golf cart and after a few months, it failed and wouldn't pair to anything. I'm a software/hardware expert and did every possible bluetooth reset according to the instructions, disconnected power for hours, you name it...bought another and swapped out and it worked.Seems like a shoddy bluetooth implementation.
Radscoot
2025-04-01 15:45:42
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.
Eleno Leyva
2025-03-26 12:00:19
Acoplamiento muy rápido con dispositivos bluetooth
カスタマー
2025-02-14 16:30:52
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。
Moisés C.
2024-11-28 12:30:54
Excelente artículo
MOTO DUCHARME
2024-11-26 11:10:49
GOOD QUALITY OF PRODUCT AND WORK VERY GOOD AT LOW PRICE