# Boss Audio ASK904B.64 4 Channel Amplifier  2 Pairs of 6.5" Speaker Kit - White [ASK904B.64]

**ASK904B.64 4 Channel Amplifier & 2 Pairs of 6.5" Speaker Kit - White**

No room for a stereo head unit?  Want to listen to your music from a Bluetooth enabled device?  No worries.  Boss has taken audio to the next level with a powerful amplifier and weatherproof speaker kit.

This kit packs a punch with the MC900B 4-Channel amplifier w/multi-function controller, a two (2) pairs of 6.5" MR6W speakers, waterproof pouch and a USB/Aux accessory extension cable.

All in one and ready to play all your music on the water or in any environment.  
  
**Features:**

-   Weatherproof 6.5" MR6W speakers - White
    -   Hideaway antenna
-   4-Channel Weatherproof 500W amplifier with multi-function controller - 

**Included in the Box:**

-   MC900B Bluetooth amplifier w/multi-function controller 
-   Two (2) pairs of MR6W speakers
-   Waterproof pouch
-   MUSB35 USB/Aux Accessory Extension Cable
-   Mounting hardware
-   Instruction manuals

\*Sold as an Individual Kit

![Warning](https://productimageserver.com/prop65/6pt.png)**WARNING:** This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to [P65Warnings.ca.gov](http://P65Warnings.ca.gov).

**Specifications:**

-   Auxiliary Input: Yes
-   Bluetooth: Yes
-   Color: Black
-   Cover Included: No
-   NMEA 2000: No
-   Power - Output (Watts): 500
-   RCA Input: Yes
-   RCA Output: Yes
-   SiriusXM Ready: No
-   Wired Remote Capable: Yes
-   Wireless Remote Capable: No
-   Box Dimensions: 8"H x 11"W x 16"L WT: 11.6 lbs
-   UPC: 791489123020

  
[Owner's Manual (pdf)](https://productimageserver.com/literature/ownersManual/60721OM.pdf)  
[Brochure (pdf)](https://productimageserver.com/literature/brochure/60721BR.pdf)

## Details

- **Price:** 449.99 USD
- **Type:** Stereos
- **Tags:** Brand_Boss Audio, Entertainment, Entertainment | Stereos

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 449.99 USD | In stock |

## Images

- Boss Audio ASK904B.64 4 Channel Amplifier  2 Pairs of 6.5" Speaker Kit - White [ASK904B.64] Boss Audio

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> Source: [Besafe1st](https://besafe1st.com/products/6962104533171)
> Updated: 2026-06-01