Don't listen to all the haters, their shiz doesnt knock...EDIT: Ohh yea, and by the way....before you haters start mouthing, I got my SLAB from wall-mart....that ish doesnt bang it XPLODES. Yea..I run sony... Schoche -SP box with 4 inch PVC downfiring into pasenger wheel well. 5-6 inch streamers...