Infinity Reference 860w 8-Inch 1,000-Watt High-Performance Subwoofer (Single Voice Coil) 8-inch single voice coil subwoofer with 1000 Watts peak power handling High-efficiency polypropylene woofer cone with large-roll rubber surrounds ensure efficient, clean bass Vented polepieces provides additional cooling to increase power handling Modest mounting depth allows for use in most ported, sealed and bandpass sub enclosures One-year warranty