Amazon.com: Polk Audio PSW505 12" Powered Subwoofer - Deep Bass Impact & Distortion-Free Sound, Up to 460 Watts, Easy Integration with Home Theater Systems, BLACK : Electronics
JBL C60PS/T - C60 PENDANT SUBWOOFER High impact, 150 Watt direct radiating pendant subwoofer with built-
Sonance i10 IMPACT SUBWOOFER Impact 10" 300W Powered Wireless Subwoofer (Each) Black 93357 - Best Buy
10" 300W Outdoor Subwoofer Forza-10 | Whole House Audio
Wharfedale Pro Impact-X218B Dual 18" Passive Subwoofer at Gear4music
Velodyne - Impact X - 10" Subwoofer
SUBWOOFER AMPLIFICATO IMPACT ACTIVE 10 | Xtremewebshop.com