I know Im going to get bashed for giving some "actual" advice, and its probably falling on deaf ears, but.....*zips up flame suit*

I had 2 Power Acoustik FUBR (not the FUBAR model) 10's in a sealed box, in the sealed off trunk of my Cadillac Eldorado, on 1 Power Acoustik A1800DB amp. It put down a 140.xx at Toby's on the termlab and I was having issues with my headunit cutting out randomly. I think the same setup in a ported enclosure in a hatch or truck cab could do better. They are "inexspensive" subs, that perform well. Definitly not a SQ sub, but they get loud and the 10's are "fairly" clean sounding. The 15" FUBR that I heard was dirty as hell.