I'm hoping this combo JL stuff, will impress me for the money. I have always come across used stuff in the past. Trying to get it right this time. I'm used to two hollywood 12's in a mustang box, powered by a bazooka amp. it would sometimes make yours vibrate if you concentrated on it. hopefully this will accomplish more than that. and my neighbors are pissing me off with theirs, I would like to return the favor. thanks, chris