my avatar is what is being ran off of one. im sure you know of kandiman. we did not document the install but he built the enclosure for the 2 15" fi q's. He was involved in damn near every part of the install. he is the man. wiring, enclosure, dampening material, gutting and reinstalling interior, installing both batteries and modifying the stock battery rack for the new one. he helped me tremendously. I have them just how the avatar shows. forward firing vented at 34 hz i believe. dont remember the exact cubes. its amazing. very accurate, tight, and ruthless considering how good it all sounds. im also running 5 1/4 inch hertz hi energy components in my kick panels up front. off of a jlaudio e4300 bridged. i would have to say that the audisons are absolutely amazing for sq. the other one is gonna go on one 15" kove armaggedon rebuilt by psi. hopefully i can run all 2k on it. lol!!!