NVX 10" 500 watt RMS 1000 watt Peak Professional Grade VS-Series Dual 4-ohm Car Subwoofer [VSW104V2] 10" VS-Series Dual 4-ohm Car Subwoofer Power Handling: 500 watts RMS - 700 watts Peak Aluminum Shorting Ring to prevent rises in inductance Non Pressed Paper cone High Roll Custom Blended Foam surround