Monoprice CSW-8 8in 100 Watt Compact Subwoofer

Monoprice Premium Select Subwoofer - 8-Inch Woofer, 200 Watt, 4 Ohm Nominal Impedance, Auto On/Off, Black

Monoprice Ssw-8 Powered Slim 8 Inch Subwoofer - Black | 100 Watt, Low Profile, Powerful Amp, Low Pass

Atlas Sound SM8SUB70-B - Surface Mount 8X22 Subwoofer System - Black

Rockville SS8P 400W 8" Slim Under-Seat Active Subwoofer, High-Level Inputs, Cast Aluminum Enclosure, For Car/Truck Audio Systems

YAMAHA 8" 100W Powered Subwoofer - Black (NS-SW050BL)

Dayton Audio RSS315HFA-8 12" Reference HF Subwoofer 8 Ohm

CT Sounds TROPO-8-D2 8 Inch Car Subwoofer Dual 2 Ohm, 800 Watts Max