Boss Audio 4" BM40AMPBT Amplified Waketower Speakers - Matte Black - 500W [BM40AMPBT] Brand_Shurhold Easy-to-read sonar shows exactly where

Easy-to-read sonar shows exactly where they are

Fastener: 3/8"

RMS Power - 20-watt RMS per channel (at 4 ohms)

GPS source selection

For highest electrical efficiency

Boss Audio 4" BM40AMPBT Amplified Waketower Speakers - Matte Black - 500W [BM40AMPBT] Brand_Shurhold Easy-to-read sonar shows exactly where4" 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"