My current set up is 2 12" alpine type r's ( 4 ohms ) hooked up to a Jl 500/1.... lately ive been " where'd all the bass go, did i get used to these sub's output ?" the bass boost is turn 3/4 the way up and the clarity is very good, but i need more spl outta my system....is it time to upgrade??? if so i was thinking Jl 1000/1 along with 2 12" Ed O's...but how would the Jl 1000/1 be on my electrical system opposed to the Jl 500/1 currently own which has no strain on the electrical system? I currently own a 94 bmw 325...please help a bass craver!!!