Amazon.com: PIONEER TS-WX130EA Pre-Amplified Active Subwoofer, 160 W : Electronics
Amazon.com: BESTISAN Powered Subwoofer, 6.5" Active Home Audio Subwoofer in Compact Design,LFE & Stereo Line Inputs & Audio Output, Built-in Amplifier for Home Theater/Receiver/TV/Speakers, Black, SW65D : Everything Else
Yamaha 8-Inch 100-Watt-Max Powered Subwoofer Black NS-SW050BL - Best Buy
S6 Powered Subwoofer — Audioengine
STEALTH AS-8 | Wet Sounds 8" Active Marine Sub Enclosure - Wet Sounds
VPAS10V2 - 10" Vega Powered Active Subwoofer - Cerwin Vega