Hey guys I have 2 10.1d infinitys, I really do like the sounds of 12's better, I'm useing a ARC 1000.2t to power them. I'm thinking about... MB Quart PWE'S thats there "premium" sub, but aparently it only handles 600max 500rms could be abit much, then theres a/d/s r12s's they take 500rms, Boston Acoustics G212-44 or JL 12w3v2's. Next up a single subs... IDMAX 12, or a single RE SE 12, what do you guys think, what should I get, 140db would be nice, but SQ is my main concern, the kappas are great on the low end, but drop off alot on higher frequencys, I want something with really smooth frequency responce to 80hz or so, thanks for your help!!