My ThunderBlock subwoofer using an insane 1,500-watt 15" woofer! This pic is during assembly. … | Subwoofer box design, Car audio installation, Car audio subwoofers
Subwoofer & Amp Crazy
Let's Get Ready to Ruummbbblllleee...Subwoofer Powerhouse Velodyne is Back - Strata-gee.com
CRAZY insane Subwoofer Box Idea (w/ Pictures) - GM Forum - Buick, Cadillac, Olds, GMC & Pontiac chat