Bluave M10s42 10" Series High Power 600w Marine Subwoofer 4-ohm With 10" Universal Marine Sub Box Enclosure For Cars, Trucks, Powersports, Utvs, Go... : Target
Amazon.com: PyleUsa 6.5” Slim Marine Subwoofer -150W 4 Ohm Waterproof Car Component Speaker System,Low Profile PP Cone w/Rubber Edge, 20 Oz Magnet 1" Voice Coil, for Custom Audio Boat Truck Mobile Vehicle (