Amazon.com: DS18 NXL10SUB Outdoor Marine Audio Subwoofer with RGB - 600 Watt MAX 300 Watt RMS 10-Inch White Waterproof Bass Loud Speaker For ATV/UTV Stereo Sound System, Under Helm or Box Case
Pyle PLMRSBA10 100W 10" Low-Profile Active Amplified Marine Subwoofer - Gray for sale online | eBay