This post is to all the mesa users that gave me great feedback about the M-Pulse series. I bought the M-Pulse 600 and the Powerhouse 1000 tonight, and holy hell, what a combo. To some of you this may not be the holy grail, but to me, this is quite a step up from the swr wm series... i'm pumped! thanks to all that gave the support. today is a good day.