World's best subwoofer value, Best-sounding, loudest bass for the buck;Super-rigid, injection-molded cone with 360-degree back bracing - High-temp coil wire - Vented pole piece for heat dissipation;Strong steel basket with coil-cooling perimeter venting - Ribbed surround for strength at high excursion;Durable Spiralead tinsel leads - Tough, yellow double-stitching on surround - Handy spring-loaded terminals;KICKER provides the best bass for the buck with the KICKER Comp Subwoofer