Amazon.com: GEOYEAO Sound Bars for TV with Subwoofer, 3D / DSP/Bluetooth/HDMI-ARC Home Speakers, Bass Treble Adjustable, 2 in 1 Sound System Horizontal & Vertical Placement Surround Sound TV Speaker, 2.1 Channel :
SR-C30A Compact Sound Bar & Wireless Subwoofer - Yamaha USA
Monoprice 8 Inch 60-Watt Powered Subwoofer - Black - Walmart.com
Acoustic Audio by Goldwood Home Theater Powered 12 in. Subwoofer Black Down Firing Sub PSW12 - The Home Depot