Amazon.com: EBTOOLS Passive Subwoofer, 150W High Power Passive Subwoofer, Home Audio Subwoofers, with 40mm Machine Base, for Home Theater Stereo System, 6.5 Inch, Black : Electronics
Axton ATW16 16.5 CM / 6.5″ Subwoofer 2 x 2 Ohm 150 Watt Kickbass Woofer | eBay
MG-840A 150W Wired Subwoofer - Black : Amazon.in: Electronics
Best Buy: REL T-3 150-Watt Powered Subwoofer Black T3BLA
MB8 - 8" 150 WATT 4 OHM MID-BASS SPEAKER by Massive Audio® - SSA® Online Store