I'm kinda set on running a Q1-2200d at .5ohm, because I currently have a zxs1500 tht I want to run at 2ohm. Also I figure I can get 2500w, which wud power 2 HDS315's perfect since thy are rated 1200wrms. I have 2 Diehard Platinum 65's with a stock 130a alt. I will upgrade alt prior to Q1-2200d purchase, may add another batt. Now what problems can I expect from a .5ohm load???? I know it'l run hotter, but I will mount the amps behind my seats in an SUV, plenty of breathing room....