ok i have a 18'' Fi Bl (dual 2 ohm) i want to run it at 1 ohm and it can handle up to 1800rms with the options I got.....My question is should i go with the Memphis 16-MCD1000 or the brand new arc audio amp that puts out 1000Rms at 1 ohm.....(it is avalible today i think) (BRAND NEW)..... the...