Yamaha 10-Inch 100-Watt-Max Powered Subwoofer Black NS-SW100BL - Best Buy
New Rockville RBG10S Bass Gig 10" 1200 Watt Active Powered PA Subwoofer DJ/Pro
BOSS Audio Systems CXX104DVC Chaos Extreme Series 10 Inch Car Audio Subwoofer - 1000 Watts Max, Dual 4 Ohm Voice Coil, Sold Individually, For Truck Boxes and Enclosures, Hook Up To Amplifier