Amazon.com: Monoprice - 135847 Ssw-12 Powered Slim Subwoofer - 12 Inch - Black with Ported Design, 150 Watts, Lowprofile Includes On-Wall Mounting Brackets : Everything Else
Theater Solutions by Goldwood 250 Watt 8" Slim Home Theater Subwoofer(For Parts) 813282015606 | eBay
Saiyin Sound bar, Sound Bars for TV with Subwoofer, Soundbar Ultra Slim 24 Inch, 2.1 Channel TV Speakers Surround Sound System Optical//COXIAL/Bluetooth/AUX, Wall Mountable - Newegg.com