I just ordered a used GK MB212. I have a few questions, for any current users...and I know there is a new version which is why I'm asking...more or less to compare and contrast the new and previous versions. 1. It's 500 watts. I'm assuming the 212 cab is a 4ohm load, right? So, I'll be able to run all 500 watts in the combo? 2. Is there a connect out to the new MBP cabs? I'm assuming that's one of the big differences between the previous version and the new version? I also run a GK 700RBii w/ a Big Bertha cab. This is to make rehearsal a lot easier and maybe even some gigs. I may run it all together when the time is right (sending out parallel signals from my fly rig).