---
product_id: 16543816
title: "BOSS Audio Systems ASK904B.64 Marine Boat 6.5 inch Speakers and 4 Channel Amplifier - 500 High Output, Bluetooth Remote, USB and Auxiliary, Waterproof Pouch"
brand: "boss audio systems"
price: "VT96284"
currency: VUV
in_stock: true
reviews_count: 13
category: "Boss Audio Systems"
url: https://www.desertcart.vu/products/16543816-boss-audio-systems-ask904b-64-marine-boat-6-5-inch
store_origin: VU
region: Vanuatu
---

# Bluetooth streaming + remote 500W max power x4 channels IPX7 weatherproof rating BOSS Audio Systems ASK904B.64 Marine Boat 6.5 inch Speakers and 4 Channel Amplifier - 500 High Output, Bluetooth Remote, USB and Auxiliary, Waterproof Pouch

**Brand:** boss audio systems
**Price:** VT96284
**Availability:** ✅ In Stock

## Summary

> 🌊 Turn your boat into the ultimate party zone with Boss Audio’s marine-ready powerhouse!

## Quick Answers

- **What is this?** BOSS Audio Systems ASK904B.64 Marine Boat 6.5 inch Speakers and 4 Channel Amplifier - 500 High Output, Bluetooth Remote, USB and Auxiliary, Waterproof Pouch by boss audio systems
- **How much does it cost?** VT96284 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/16543816-boss-audio-systems-ask904b-64-marine-boat-6-5-inch)

## Best For

- boss audio systems enthusiasts

## Why This Product

- Trusted boss audio systems brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **USB Charging & Aux Input:** Keep devices powered and connect any audio source for non-stop entertainment.
- • **Complete Plug & Play Package:** Includes 2 pairs of 6.5” full-range speakers and a waterproof remote pouch for effortless setup.
- • **Marine-Grade Weatherproofing:** IPX7-rated to brave splashes, rain, and salty air without missing a beat.
- • **Powerful 4-Channel Amplifier:** Unleash 500 watts max power to energize every adventure.
- • **Seamless Bluetooth Streaming:** Cut the cords—control your playlist from up to 40 feet away.

## Overview

The BOSS Audio Systems ASK904B.64 is a compact, marine-grade 4-channel amplifier delivering up to 500 watts max power, paired with two 6.5-inch full-range waterproof speakers. Featuring IPX7 weather resistance, Bluetooth streaming with remote control, USB charging, and auxiliary inputs, this all-in-one package is designed for easy installation and reliable performance on boats, jet skis, and outdoor adventures. Backed by a 3-year speaker and 6-year amplifier warranty, it’s engineered to keep your soundtrack alive through sun, spray, and splash.

## Description

Pump out the jams on your next adventure with the Boss Audio ASK904B.64 4-Channel Weatherproof All-Terrain Speaker and Amplifier package. This combo kit includes the MC900B Amplifier and 2-Pairs 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-connected smartphone or other 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 ASK904B.64 Amplifier features weatherproof connectors to prevent corrosion and provide protection against the elements. Get out and go with the Boss Audio ASK904B.64. For further product details, please scroll down.

Review: Easy to set up - 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!
Review: So far impressed and happy with purchase - 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.

## Features

- Amplifier Power - 500 Max x 4 @4-Ohms. USB charging port available. 4-8 Ohm Stable with RCA Outputs
- Bluetooth - You do not need a head unit. Just power up the amplifier 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
- Weather Resistant - The MC900B has been designed to handle some light weather conditions without giving up on you
- 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. Just plug in and start playing
- Amp 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”
- BOSS Audio Systems provides a 6-year warranty on amplifiers and 3 years on speakers purchased is made on desertcart.com. We strongly encourage professional installation of this product to ensure proper and safe functionality

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Asin | B00VFZ09TG |
| Best Sellers Rank | #7,224 in Electronics (See Top 100 in Electronics) #3 in Marine Amplifiers |
| Brand Name | BOSS Audio Systems |
| Customer Reviews | 4.4 4.4 out of 5 stars (969) 4.4 out of 5 stars |
| Global Trade Identification Number | 00791489123020 |
| Included Components | Bluetooth Remote, Waterproof Pouch |
| Item Dimensions | 7.5 x 5.3 x 1.7 inches |
| Item Type Name | BOSS Audio Systems ASK904B.64 Marine Weatherproof Amplifier / Speaker Package - Full Range 500 Watt Bluetooth Amplifier With Remote, 2 6.5 Inch 180 Watt Full Range Speakers |
| Item Weight | 10 Pounds |
| Manufacturer | BOSS Audio Systems |
| Material Type | Plastic |
| Maximum Output Power | 500 watts |
| Model | ASK904B.64 |
| Mounting Type | Flush Mount |
| Number Of Channels | 4 |
| Output Power | 500 Watts |
| Package Type Name | Box |
| Part Number | ASK904B.64 |
| Specification Met | Ipx7 |
| Unit Count | 8.0 Count |
| Upc | 791489123020 |
| Voltage | 12 Volts |
| Warranty Description | 3 Year Platinum Online Dealer Warranty valid only on products Sold / Shipped by Amazon.com. This offer is not valid on purchases made from third party market place sellers |

## Product Details

- **Brand:** BOSS Audio Systems
- **Item dimensions L x W x H:** 7.5 x 5.3 x 1.7 inches
- **Manufacturer:** BOSS Audio Systems
- **Mounting Type:** Flush Mount
- **Voltage:** 12 Volts

## Images

![BOSS Audio Systems ASK904B.64 Marine Boat 6.5 inch Speakers and 4 Channel Amplifier - 500 High Output, Bluetooth Remote, USB and Auxiliary, Waterproof Pouch - Image 1](https://m.media-amazon.com/images/I/81HL3vQdxBL.jpg)
![BOSS Audio Systems ASK904B.64 Marine Boat 6.5 inch Speakers and 4 Channel Amplifier - 500 High Output, Bluetooth Remote, USB and Auxiliary, Waterproof Pouch - Image 2](https://m.media-amazon.com/images/I/91Tat1FCh1L.jpg)
![BOSS Audio Systems ASK904B.64 Marine Boat 6.5 inch Speakers and 4 Channel Amplifier - 500 High Output, Bluetooth Remote, USB and Auxiliary, Waterproof Pouch - Image 3](https://m.media-amazon.com/images/I/91gYnp9mbUL.jpg)
![BOSS Audio Systems ASK904B.64 Marine Boat 6.5 inch Speakers and 4 Channel Amplifier - 500 High Output, Bluetooth Remote, USB and Auxiliary, Waterproof Pouch - Image 4](https://m.media-amazon.com/images/I/810B6VwVUML.jpg)
![BOSS Audio Systems ASK904B.64 Marine Boat 6.5 inch Speakers and 4 Channel Amplifier - 500 High Output, Bluetooth Remote, USB and Auxiliary, Waterproof Pouch - Image 5](https://m.media-amazon.com/images/I/81fBJINjcbL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: I hooked this system up in my boat. It works great until i turn the boat motor on. Then it cuts in and out continuously. Ideas what might be wrong**
A: I’m having the exact same problem. With te engine off it works just fine but ad soon as I turn the engine on in cuts and turns off. 

I made a completely separate cable and connection straight from the battery and the problem persists. 

I have a voltage gauge and volts go from 12.6 with the engine off to 14.4 with te engine on which is just fine.

I even changed the voltage rectifier in my engine but the problem persists. 

Its definitely a problem with the amp.

**Q: If i install this without a head unit can i control the fade and balance with the inline multi-function remote?**
A: Not as far as I know !

**Q: What is the rms of the speakers?**
A: 10

**Q: Will the unit still work from a smart phone if the remote gets lost or broken.**
A: The remote is hardwired, if you lose it will not function

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy to set up
*by E***Q on May 30, 2026*

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!

### ⭐⭐⭐⭐⭐ So far impressed and happy with purchase
*by D***N on May 26, 2026*

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.

### ⭐⭐⭐⭐⭐ Don't short any wires.
*by D***N on February 28, 2016*

So I've installed this box and everything worked great. I put this on a 1929 roadster very loud car and still heard the music just fine; except that the lights in the remote weren't turning on. When I went to investigate why I found the illumination wire was pinched and grounded out. When I got it loose the lights came on on the remote...fixed right? No, now the volume won't go up...it beeps twice when you are at the maximum volume but it sounds very quiet like headphones quiet, turned up the volume on my iPhone all the way still nothing, tried the aux cord same thing. My only thought is that the "protection circuit" won't let the device do its thing....kinda frustrating, but its not the manufactures fault. Just tell whoever it installing to be very careful not to pinch any wires or you'll be hosed. Update: I simply unpaired my iPhone and then repaired, everything works again...wow. Would be nice if the connected controller was not rubbery and if the cable was 2 feet instead of 16.

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-06-07*