Rockville W10K9D2 10" 3200w Car Audio Subwoofer Dual 2-Ohm Sub CEA Compliant
Everything Audio Network: Home Theater Speaker Review!Episode Triple 10 Powered Subwoofer:“Single-Active, 2X-Passive ComplementDeliver Major League Low-End Energy
Amazon.com: Rockville W10K9D4 10" 3200 Watt Car Audio Subwoofer + Sealed Sub Box Enclosure : Electronics
Amazon.com: PYLE PLW10BL 10-Inch 600 Watt Subwoofer, Red : Electronics