Amazon.com: Monolith THX Certified 8in 150-watt Powered Subwoofer, Deep and Powerful Bass, Compact Design, Quick and Easy to Setup, for Home Theater or Gaming Systems : Electronics
Amazon.com: Monolith M-10 V2 10in THX Certified Select 500 Watt Powered Subwoofer - Piano Black Finish | Massive Output, Low Distortion, for Studio and Home Theater Systems : Electronics