Amazon.com: DS18 SLC-8S Subwoofer in Black - 8-Inch Speaker, 400W Max Power, 200W RMS Power, Aluminum 4 Layer Voice Coil, Black Steel Frame, SVC, 4 Ohm Impedance, Ferrite Magnet (1 Speaker) (SLC8S) : Electronics
Amazon.com: BOSS Audio Systems CXX12 Car Subwoofer - 1000 Watts Maximum Power, 12 Inch , Single 4 Ohm Voice Coil, Sold Individually,Black : Electronics
A bit about Subwoofers - Clearly Automated
MartinLogan Dynamo 1100X Hi-Res 12" 1000W Subwoofer Satin Black DYN1100XD - Best Buy
Giant Subwoofer Video - YouTube
World's biggest subwoofer - 34" 10,000 watts! In an Indian Fiat Punto - Team-BHP
Car Subwoofer Buying Guide: Find the Best Subwoofer for Your Car | Abt
FIRST 32 INCH SUBWOOFER I HAVE EVER SEEN! **CRAZY FLEX** - YouTube
Car Subwoofer Buying Guide: Find the Best Subwoofer for Your Car | Abt