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

Take your marine audio to the next level with the Boss Audio 4" BM40AMPBT Amplified Waketower Speakers in Matte Black. Engineered for boats, UTVs, and wake towers, these compact 4-inch speakers deliver bold, clear sound with rugged marine-grade build quality. A full-range Class D amplifier is built in, delivering up to 500W of max power (250W RMS) for loud, energized performance on the water.

Designed to fit wake towers from 1" to 2" in diameter, these speakers are ready for fast, secure installation on your rig. They feature a 4-ohm impedance, water-resistant IMPP cone, and a 1" tweeter to provide a balanced sound profile with punchy bass and clear highs. The matte black finish adds a sleek, low-profile look that blends with most boat or UTV interiors.

Key features

• Full-Range Class D Amplifier integrated for efficient, powerful sound
• Fits 1" to 2" wake tower pipes for versatile mounting
• IPX5-rated for protection against water and spray
• Polypropylene woofer cone with rubber surround for durable bass
• 1" tweeter for crisp high-frequency detail
• 4-ohm impedance, 94dB sensitivity, 45Hz–20kHz frequency response
• Max Power: 500W; RMS: 250W
• Matte Black finish with compact 5.54" W x 7.17" L x 7.43" H size

What’s in the box

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

Why choose Boss Audio BM40AMPBT?

With marine-grade reliability, a built-in amplifier, and easy remote control, these waketower speakers deliver immersive sound for water-based adventures. Whether you’re cruising, wakeboarding, or exploring, enjoy robust audio that cuts through wind and spray while maintaining a clean, stylish look.

Prop 65 Warning: This product can expose you to chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.