Search  for anything...

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

  • Based on 922 reviews
Condition: New
Checking for the best price...

Buy Now, Pay Later


As low as $16.61 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

Returnable until Jan 31, 2025

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Sunday, Sep 14
Order within 2 hours and 20 minutes
Available payment plans shown during checkout

Features

  • 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

Description

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.

Item dimensions L x W x H: 7.8 x 3.8 x 1.75 inches


Voltage: 12 Volts


Manufacturer: BOSS Audio Systems


Mounting Type: Table Top


Brand: BOSS Audio Systems


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 7.8 x 3.8 x 1.75 inches; 2.87 Pounds


Item model number ‏ : ‎ MC900B


Department ‏ : ‎ BOSS AUDIO


Batteries ‏ : ‎ 1 12V batteries required.


Date First Available ‏ : ‎ March 31, 2014


Manufacturer ‏ : ‎ BOSS Audio Systems


Country of Origin ‏ : ‎ China


Best Sellers Rank: #23,777 in Electronics (See Top 100 in Electronics) #10 in Car Multichannel Amplifiers


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Sep 14

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Works.
Pattern Name: Amplifier
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.
Reviewed in the United States on October 23, 2024 by Walter Bragg Walter Bragg

  • Works great for the rzr
Pattern Name: Amplifier
No problems been a month so far I have them paired with boss wake tower speakers easy hookup
Reviewed in the United States on October 9, 2024 by Easton Didway

  • Overall, I'm very, very happy with my purchase!
Pattern Name: Amplifier
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! ... show more
Reviewed in the United States on November 14, 2016 by Brando Online

  • Amp
Pattern Name: Amplifier
It’s sounds good wish but wish it could handle my 4 6x9 it’s not pushing them that well going have to buy a different amp that can perform
Reviewed in the United States on July 25, 2024 by Florencio olvera

  • Won’t connect via Bluetooth
Pattern Name: Amplifier
So after I installed the amp on my boat it worked great for 1 lake trip. 1 month later we took a 4 day lake trip, which was the amps second trip. It worked great on the first day then on the second day it quit connecting via Bluetooth to any device. So we had 3 days without music. I purchased the $9.99 3 year warranty so Amazon is replacing it. Hopefully the next one lasts longer than a month. (Side note, there is a way to hard line connect your phone. If you buy this amp I highly suggest you buy the required RCA cables and bring them with you on your trip just in case so your not out of music for your entire trip.) I gave stars on sound quality because when it worked it worked well, and stars on price cause it was cheap. But I guess you get what you pay for. ... show more
Reviewed in the United States on August 18, 2020 by Crane guy

  • Luggage Stereo Perfect
Pattern Name: Amplifier
I have only been using it for 4 weeks but so far I am extremely pleased. My use of the amp is in a Luggage Stereo system, I am using it to power 10 speakers in all, all of them are running at 2 ohm load, my power source is 2(12V) lead acid batteries. The Bluetooth function works up to 30 feet and is quite easy to pair up. Also the USB charger works great with my Iphone. Will order another one if I need to build another large system. 3 Month Later, Bluetooth amp working great and enjoying stereo alot, I just ordered my second one and plan on building another system. I really enjoy the amp interface it looks great and is easy to use. 4 month update: I know have bought 4 of these and they work great. Btw you can't bridge this amp in any way, but it is stable at 2 ohms. Very pleased and will continue to purchase ... show more
Reviewed in the United States on April 14, 2015 by J. Rector

  • Installed in classic car with radio delete.
Pattern Name: Amplifier
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. ... show more
Reviewed in the United States on May 20, 2024 by Soraya

  • First one failed after a few months. Bluetooth related?
Pattern Name: Amplifier
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. ... show more
Reviewed in the United States on June 6, 2024 by Alex

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...