Kicker L7S84 8" 900 Watt Solobaric L7S Car Audio Subwoofer Solo-baric 44L7S8-4

See below for more details. Max Rec Amplifier Power: 900 Watts Peak / 450 Watts RMS. ft.(9.4 liters). ft. (21.2 liters). ft. (18.6 liters). ft. (28.3 liters). SoloKon™ 360-Degree Back Bracing. Impedance: 4 Ohm DVC.

eBay