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BOSS Audio Systems ASK902B.6 Marine Boat 6.5 inch Speakers and 4 Channel Amplifier Package - 500 High Output, Bluetooth Remote, Waterproof Pouch

  • Based on 975 reviews
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Availability: Only 1 left in stock, order soon!
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Arrives Monday, Jul 6
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Style: Amp System + 2 Speaker Package


Features

  • Power - 125 W Max x 4 @ 4-Ohms, 94 W RMS x 4 @ 4-Ohms. USB charging port available. 4-8 Ohm Stable with RCA Outputs
  • Bluetooth - You do not need a head unit. The included wired Bluetooth remote control lets you stream your music via your Smartphone or MP3 player and use apps like Spotify and Pandora
  • Weather Resistant - The MC900B has been designed to handle some light weather conditions without giving up on you. Waterproof phone pouch included
  • Class A/B Topology - 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
  • Auxiliary - The Bluetooth remote is compatible with the audio output from smartphones as well as MP3 players. Included is a 3.5mm Aux to USB or RCA and USB to USB or RCA interface cable
  • Amplifier Specs - Dimensions: 7.8 x 3.8 x 1.8, Weight: 2.9 lbs.
  • Speaker Specs - Power: 180 watts per pair, Frequency: 80 Hz to 20 kHz, Sensitivity: 89 dB, Cone: Polypropylene, Voice Coil: 1, Surround: Rubber, Dimensions: 3.4 x 7.5 x 7.5, Mounting Depth: 2.2, Mounting Hole: 5.8

Description

Pump out the jams on your next adventure with the Boss Audio ASK902B.6 4-Channel Weatherproof All-Terrain Speaker and Amplifier package. This combo kit includes the MC900B Amplifier and One Pair of MR6W 6.5" Full Range Marine Speakers with Poly Carbon Cone and Rubber Surround. The 4-Ohm stable Amplifier features 500 Watts Max Power with a MOSFET power supply to rock out on land or water. Plug into the MUSB35 USB to Aux Adapter to charge and play your USB compatible Smartphone or other USB device. Bluetooth Audio Streaming lets you play your favorite music apps like Pandora or Spotify through the speakers. No need for an In-Dash Head Unit to play your music. Control it all with the Inline Multi-Function Remote Control. The ASK902B.6 Amplifier features weatherproof connectors to prevent corrosion and provide protection against the elements. Get out and go with the Boss Audio ASK902B.6. For further product details, please scroll down.

Item dimensions L x W x H: 7.75 x 3.75 x 1.25 inches


Manufacturer: BOSS Audio Systems


Maximum Supply Voltage: 12 Volts (DC)


Mounting Type: Boat Mount


Brand: BOSS Audio Systems


Maximum Supply Voltage: 12 Volts (DC)


Mounting Type: Boat Mount


Number of Channels: 4


Output Power: 500 Watts


Package Type Name: Cell Phone Armbands


Maximum Output Power: 500 watts


Item Dimensions: 7.75 x 3.75 x 1.25 inches


Material Type: Plastic


Specification Met: FCC


Manufacturer: BOSS Audio Systems


Model: ASK902B.6


Brand Name: BOSS Audio Systems


Warranty Description: 3 YEAR PLATINUM DEALER WARRANTY


Global Trade Identification Number: 37


UPC: 791489123037 796594441151


Part Number: ASK902B.6


Item Type Name: Great Product


Item Weight: 2.5 Kilograms


Included Components: Bluetooth remote, AUX/USB cable, phone pouch


Unit Count: 1.0 Count


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Jul 6

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.

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Top Amazon Reviews


  • Easy to set up
Style: Amp System + 2 Speaker Package
Very easy to set up. I have no knowledge or anything with electrical/wiring. The manual explains everything for you. I set it up in my boat and it sounds great. It's a great starter speakes for cheap. I'm very happy with this purchase!
Reviewed in the United States on May 30, 2026 by Eriq

  • So far impressed and happy with purchase
Style: Amp System + 4 Speaker Package
So far so good! Installed on 5/25/26. Sounds great. Straight forward install because all the wires in the harness are well labelled. Easy to connect my phone via Bluetooth. We will see how it holds up throughout the boating season.
Reviewed in the United States on May 26, 2026 by D. McMahon

  • Great small system for my Waverunner install. Great small system for my Waverunner install.
Style: Amp System + 2 Speaker Package
When brainstorming to add a stereo to my Yamaha Waveventure PWC, I came across this system and it seemed to fit my needs and the size of where I intended to put it. I wanted a way to listen to some music when floating or beached and didn't want to permanently modify my ski. So I installed this complete system in a spare front storage compartment. I'm also adding 2 3.5" speakers into a set of spare mirror housings. The system itself is small, light, and came with everything and seems to be well made, I'll update after use for some time and see how it holds up. For the price, I don't expect it to last forever. I tested it hooked to a YB14 series battery which is smaller than the one in my ski. I didn't hook up an ammeter, but this seems to draw very little power. I ran it on the bench via Bluetooth from my phone for 3 hours. Battery still showed 12.7 volts and charger said battery was still 95% capacity after the test. Battery drain being a concern, I'm very happy with this. The included speakers sound good. Not great, but as expected or better. For my needs, quite acceptable. The controls are easy to use. Blue tooth range is great. I tried it at up to 40 ft away and it worked fine. I'm pleased so far and have no complaints. Update 7/18/2017: One year later, still going strong and works as well as the day it was installed! Update 5/10/2018 Almost 2 years later and still works as well as it did when new. And it lives a rough wet life in the front of my Waverunner. It has been moved to my 98 XL1200 which uses the same front storage tub and gets a lot of looks, listens and thumbs up for having a stereo in my ski. I also put the small Polk audio 3.5” speakers I had in the mirrors of my wave venture in the mounting plate. Still love this setup! Update: 10/25/2018 Still working like New after another season in the ski. And in the off season I use it in my shop for a stereo. Still very happy! Update: 4/12/2019 Still going............. All winter in my shop. And now back in the ski for another season on the water. Still works perfectly! Update 7/29/2019 You guessed it.........still working perfectly. ... show more
Reviewed in the United States on July 11, 2016 Reviewed in the United States on July 11, 2016 by PT-13Pilot

  • When it works, it is great. I fixed a problem
Style: Amp System + 4 Speaker Package
I purchased this on the strength of the reviews I read, looking for a stereo system for my refurbished pontoon boat. Easy to install; the manual is straightforward and also can be downloaded from this site, which I have done as I have had to refer to it. However, much to my dismay, with my 30-year two-stroke Mercury and a single battery powering my boat, the stereo would work great with the engine off, but when I turned the engine on it would cut in and out. Not acceptable. I came back and looked again at the reviews and found some with the same problem, which I must have overlooked initially. I thought this stereo system was a lost cause after reading those reviews and that I would have to replace and be out the money. However, in the refurbishment of my used, 30 year old boat, I added a second battery and a new 4-stroke Mercury 75, and the stereo works great, as it is supposed to. No cutting out. I wonder if the electrical source from the old engine was not as powerful as the new engine's alternator, or if perhaps having two batteries available when the engine is on gave more sustainable power, or perhaps both or maybe there is another reason. So my 1 rating because it did not work has turned to a 4. I can't give it 4 because there is no mention by the manufacturer that there could be a problem, nor what causes the problem or how to fix it. I also installed a new custom-built console, and the stereo's controller is installed above the steering wheel. That is also where I mounted the USB-1/4" input jack. I am very happy now that it is all installed and works properly. ... show more
Reviewed in the United States on June 5, 2024 by Nevin L. Dulabaum

  • Good Product! Good Product!
Style: Amp System + 4 Speaker Package
After evaluating many options on the market, I bought this amplifier, read many reviews, and compare different options. I chose this one because it already had the speakers included. It is not easy to choose the right speaker for an amplifier since the amplifiers have RMS and nominal power, which changes if the speaker is 4 or 8. It is not easy to choose the right speaker, so I thought it was very good that already the amplifier will bring the speakers. Less task to acquire the whole set. I was surprised by the size of the amp. It is really small. I thought the sound would not be that good, but I was wrong. The sound surprised me! It is very good! My boat is a 21-foot bowrider type and with the engine running the old audio system just couldn't be heard, so I decided to change it for a better system, and this one works well. Pros: - The small size of the amp really makes it easy to hide it inside the boat - Bluetooth connection is extremely easy - The controls screen facilitates everything - It is a totally marine product - The speakers are easy to install and have the patterns to make the holes. - The USB connector is very good. Read MP3. - It is a very practical system and the sound is very good. Now my friends call it "the party boat" :) - the price is right. Cons - I don't have any for now. ... show more
Reviewed in the United States on August 5, 2021 Reviewed in the United States on August 5, 2021 by Bernardo Vanegas

  • Nice and loud! Easy install.
Style: Amp System + 2 Speaker Package
Nice and loud! Came with a little amp. I'm very, very happy with this. Way better than my Bluetooth speaker lol. Took about 2 hours to cut all the holes, wire it up. And started jamming out
Reviewed in the United States on June 23, 2026 by Rene Soto

  • Doesn't work with 2 stroke motors
Style: Amp System + 2 Speaker Package
System works I believe. However I installed on a 2 stroke boat and the interception is bad where I cant hear anything and it cuts out. I've even installed a 2nd battery separate and no wires connecting the two from the main battery and it still interference with the motor. I'll get something else if 2 stoke ... show more
Reviewed in the United States on June 18, 2026 by justin boyce

  • Great when Boat isn't eunning
Style: Amp System + 4 Speaker Package
This stereo is amazing when the boat motor is off, as soon as the boat starts we lose the stereo, it is connected to a stand alone battery and we can't figure it out. Called BOSS tech support and they couldn't help us.
Reviewed in the United States on June 21, 2022 by NICOLE B.

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