Kicker 10C104 Comp 10" 600 Watt 4 Ohm Car Subwoofers (Pair) 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