# Boss Audio 4" BM40AMPBT Amplified Waketower Speakers - Matte Black - 500W [BM40AMPBT]

**4" BM40AMPBT Amplified Waketower Speakers - Matte Black - 500W**

These Matte Black 8" BM40AMPBT Amplified waketower speakers provide next-level audio through a stylish design.  Boss Audio  tower speakers are marine grade, so you can have outstanding sound quality on your boat or UTV. 

**Features:**

-   Full-Range Class D Amplifier
-   Fits 1" to 2" wake tower pipes
-   IPX5 rated in-line remote w/illuminated soft-touch controls
-   Polypropylene Woofer Cone and Rubber Surround
-   1" Tweeter

**Technical Specifications:**

-   Speaker Impedance - 4 ohms
-   Cone Material - Water-Resistant IMPP
-   Sensitivity - 94dB
-   Frequency Response - 45HZ - 20KHZ
-   Max Power - 500W
-   250 Watts RMS
-   Dimensions (W x L x H) - 5.54" x 7.17" x 7.43"
-   Weight 5.58 lbs

**In the Box:**

-   Two (2) 2-Way waketower speaker
-   Bluetooth multi-function controller 
-   Power wire harness
-   Mounting hardware
-   Instruction manual

\*Sold as a Pair

![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:**

-   LED Lighting: No
-   QTY: Pair
-   Size: 4"
-   Watts Max: 500w
-   Watts RMS: 250w
-   Box Dimensions: 8"H x 9"W x 16"L WT: 8 lbs
-   UPC: 791489124607

  
[Owner's Manual (pdf)](https://productimageserver.com/literature/ownersManual/73102OM.pdf)

## Details

- **Price:** 449.99 USD
- **Type:** Speakers - Tower/Soundbars
- **Tags:** Brand_Boss Audio, Entertainment, Entertainment | Speakers - Tower/Soundbars

## Variants

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

## Images

- Boss Audio 4" BM40AMPBT Amplified Waketower Speakers - Matte Black - 500W [BM40AMPBT] Boss Audio
- Boss Audio 4" BM40AMPBT Amplified Waketower Speakers - Matte Black - 500W [BM40AMPBT] Boss Audio
- Boss Audio 4" BM40AMPBT Amplified Waketower Speakers - Matte Black - 500W [BM40AMPBT] Boss Audio
- Boss Audio 4" BM40AMPBT Amplified Waketower Speakers - Matte Black - 500W [BM40AMPBT] Boss Audio
- Boss Audio 4" BM40AMPBT Amplified Waketower Speakers - Matte Black - 500W [BM40AMPBT] Boss Audio

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> Source: [Besafe1st](https://besafe1st.com/products/6962356388019)
> Updated: 2026-06-01