Amazon.com: Pyle Car Subwoofer Audio Speaker - 8in Non-Pressed Paper Cone, Black Plastic Basket, Dual Voice Coil 4 Ohm Impedance, 800 Watt Power and Foam Surround for Vehicle Stereo Sound System -
Polk Audio HTS 12 in. Powered Subwoofer with Power Port Technology AM7516 - The Home Depot
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
Subwoofer for S-series Soundbar W510 | Samsung US
Alto TS 18S Subwoofer – Thomann United States
Elite 15" Subwoofer | Car Audio Equipment | American Bass