LG 5.1 Channel 500W Smart 3D Blu-ray Home Theater System (BH5140S) - Walmart.com
BIC America 500-Watt Black 0.1 Home Theater Speaker System in the Home Theater Speaker Systems department at Lowes.com
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
65 Series 10" 4Ω Dual Voice Coil Square Subwoofer | MTX Audio - Serious About Sound®