---
product_id: 734053321
title: "BOSS AUDIO ASK904B.64 Marine Package Includes 500 Watt Max 4-channel Bluetooth Amplifier, Two Pair 6.5 inch MR6W Marine Speakers, Universal USB cable and Phone Pouch by BOSS Audio"
brand: "boss audio systems"
price: "฿6124"
currency: THB
in_stock: false
url: https://www.desertcart.co.th/products/734053321-boss-audio-ask904b-64-marine-package-includes-500-watt-max
store_origin: TH
region: Thailand
---

# Weatherproof marine speakers Bluetooth + USB charging 500W max power amp BOSS AUDIO ASK904B.64 Marine Package Includes 500 Watt Max 4-channel Bluetooth Amplifier, Two Pair 6.5 inch MR6W Marine Speakers, Universal USB cable and Phone Pouch by BOSS Audio

**Brand:** boss audio systems
**Price:** ฿6124
**Availability:** ❌ Out of Stock

## Summary

> 🌊 Ride the waves with sound that commands attention!

## Quick Answers

- **What is this?** BOSS AUDIO ASK904B.64 Marine Package Includes 500 Watt Max 4-channel Bluetooth Amplifier, Two Pair 6.5 inch MR6W Marine Speakers, Universal USB cable and Phone Pouch by BOSS Audio by boss audio systems
- **How much does it cost?** ฿6124 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/734053321-boss-audio-ask904b-64-marine-package-includes-500-watt-max)

## 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

- • **Wireless Audio Streaming:** Seamlessly connect via Bluetooth to stream Spotify, Pandora, and more—no head unit needed.
- • **Powerful 500W Max Amplifier:** Unleash crystal-clear sound with 4-channel Bluetooth amp delivering immersive audio on the water.
- • **Convenient USB Charging Port:** Keep your devices powered with the built-in USB charging port for uninterrupted entertainment.
- • **Complete Marine Audio Package:** Includes flush mount bezel, remote, 10 ft USB cable, and protective phone pouch for a sleek, all-in-one setup.
- • **Durable Weatherproof Speakers:** Two pairs of 6.5-inch MR6W marine speakers with polycarbonate cones and rubber surrounds built to withstand harsh marine conditions.

## Overview

The BOSS AUDIO ASK904B.64 Marine Package delivers a robust 500W max 4-channel Bluetooth amplifier paired with two pairs of weatherproof 6.5-inch MR6W marine speakers. Designed for marine environments, it features polycarbonate cones, rubber surrounds, and a 3-year warranty. Enjoy wireless streaming, USB charging, and a complete installation kit including remote and phone pouch, making it the ultimate sound system for your boat.

## Description

Weather Proof of MR6W 6.5 Full Range Marine Speakers (Two Pair) with Poly Carbon Cone and Rubber Surround; 180 Watts MAX 90 Watts RMS Power Handling per Pair; MC900B has 500 Watt Max Power. 4 Channel Weather Proof Amp with Bluetooth Inline Multi-function Remote; Auputs, Low Level Inputs, RCA Pre-amp Outand USB Charging Port; Audio Streaming - Play music and apps like Spotify/Pandora wirelessly; NO Head unit is required to Play your Music; Includes Flush Mount Bezel for Remote, Mounting Bracket, 10 ft. USB Cable and Protective Phone Pouch; 3 Year Platinum Dealer Warranty

## Features

- BOSS AUDIO ASK904B.64 Marine Package Includes 500 Watt Max 4-channel Bluetooth Amplifier, Two Pair 6.5 inch MR6W Marine Speakers, Universal USB cable and Phone Pouch
- 2 pairs of speakers

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Batteries Required | No |
| Battery Average Life | 4 Hours |
| Speaker Count | 4 |
| Brand | BOSS Audio Systems |
| Manufacturer | Boss Audio Systems, Inc. |
| Item Model Number | ASK904B.64 |
| Model Year | 15 |
| Connectivity Technology | Bluetooth, USB |
| Mounting Type | Ceiling Mount |
| Output Wattage | 125 |
| Wattage | 500 W |
| Signal to Noise Ratio | 103 |
| Product Dimensions | 19.05 x 13.46 x 4.32 cm; 4.54 kg |
| Item Weight | 10 Pounds |

## Product Details

- **Item dimensions L x W x H:** 19.1 x 13.5 x 4.3 cm
- **Voltage:** 12 Volts
- **Manufacturer:** Boss Audio Systems, Inc.
- **Mounting Type:** Ceiling Mount
- **Brand:** BOSS Audio Systems

## Images

![BOSS AUDIO ASK904B.64 Marine Package Includes 500 Watt Max 4-channel Bluetooth Amplifier, Two Pair 6.5 inch MR6W Marine Speakers, Universal USB cable and Phone Pouch by BOSS Audio - Image 1](https://m.media-amazon.com/images/I/81-CElty91L.jpg)
![BOSS AUDIO ASK904B.64 Marine Package Includes 500 Watt Max 4-channel Bluetooth Amplifier, Two Pair 6.5 inch MR6W Marine Speakers, Universal USB cable and Phone Pouch by BOSS Audio - Image 2](https://m.media-amazon.com/images/I/A1W8ynU53sL.jpg)
![BOSS AUDIO ASK904B.64 Marine Package Includes 500 Watt Max 4-channel Bluetooth Amplifier, Two Pair 6.5 inch MR6W Marine Speakers, Universal USB cable and Phone Pouch by BOSS Audio - Image 3](https://m.media-amazon.com/images/I/81kaZxPmKRL.jpg)
![BOSS AUDIO ASK904B.64 Marine Package Includes 500 Watt Max 4-channel Bluetooth Amplifier, Two Pair 6.5 inch MR6W Marine Speakers, Universal USB cable and Phone Pouch by BOSS Audio - Image 4](https://m.media-amazon.com/images/I/81MSq4tVymL.jpg)
![BOSS AUDIO ASK904B.64 Marine Package Includes 500 Watt Max 4-channel Bluetooth Amplifier, Two Pair 6.5 inch MR6W Marine Speakers, Universal USB cable and Phone Pouch by BOSS Audio - Image 5](https://m.media-amazon.com/images/I/71dNjeh8sgL.jpg)

## 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

## Frequently Bought Together

- 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
- FXC Waterproof Marine Boat Rocker Switch Aluminum Panel 5 Gang with Dual USB Slot Socket 3.1A + Volt Meter Blue LED Light for Car Rv Vehicles Truck (KG0149-5B Blue)
- 10 Gauge Marine Wire,10 AWG 30ft Duplex Marine Grade Wire Tinned Copper Oxygen-Free Insulated Red& Black Electrical Cable for Boat/Automotive/RV/Camper/Trailer

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-01-23*