Polk Audio HTS 10 10" Subwoofer with Power Port Technology Open Box — Safe and Sound HQ
Dayton Audio MK602X 5.1 Home Theater Bundle with 10" Subwoofer
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Home Theater 2.1 Audio System Wireless 10 Inch 180W at 4ohm Active Subwoofer with WiFi, Bluetooth, USB and Aux Inputs and 2X150W Stereo Speaker Outputs - China Active Subwoofer and WiFi Subwoofer