It's time for you to experience your favorite music in the rich, vibrant sound quality it was intended to be heard. The Jensen MXA6BA 6" Amplified Marine Subwoofer has been specifically designed to meet the needs of any mobile enthusiast who demands their equipment be uncompromising in durability as well as quality. In addition, the MXA6BA amplified subwoofer has new Reflector Bass Technology that utilizes one active speaker and one passive speaker with no vent necessary. 200-watt max power handling. 12V DC. Water-resistant housing (IPx5). Mounts vertically or horizontally. The Jensen MXA6BA gives you easy access to gain control and frequency response. 16"W x 8-1/2"L x 3-3/4"D.