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 :
ATC SCM0.1/15SL Pro 15-inch SL Downward Firing Studio Subwoofer | Sweetwater
Samsung HW-Q990B Powered 11.1.4-channel sound bar and wireless subwoofer system with Wi-Fi, Apple AirPlay® 2, Dolby Atmos®, and DTS:X at Crutchfield
Acoustic Audio by Goldwood Home Theater Powered Subwoofer Black Down Firing Sub PSW10 - The Home Depot