Memphis Xtreme Audio subwoofers are designed to withstand water and the elements. These woofers are UV-treated to prevent damage from the sun's harmful rays. These marine-grade subwoofers ship with an included gunmetal gray grill with integrated RGB LED lighting to keep the party going when the sun goes down. This completely redesigned subwoofer is more durable and reliable than ever with improved acoustic performance over prior marine subwoofer offerings. Additional black or white grills are sold separately for a custom look on your machine. Grills: MXA10GW (white) MXA10GB.