JL Audio M10W5SGWH

10 INCH MARINE SUBWOOFER (NEEDS ENCLOSURE) Product highlights: 10 4-ohm marine subwoofer injection-molded mica-filled polypropylene woofer with synthetic rubber surround Centrex polymer basket and grille, with stainless steel back plate gold-plated, marine-grade brass binding posts marine-grade synthetic fiber spider handles up to 250 watts RMS sensitivity: 86.7 dB top-mount depth: 5-78 sealed box volume: 0.875 cu.ft ported box volume: 1.25 cu.ft.