I am buying an swr 750 head, and from what I have read, SWR claims it to be 850 watts at 2.6 ohms. My question is, how does one acquire the 2.6 ohms? 2-4 ohm cabs would give you a flat 2 ohms correct? Is this their way of saying "try 2 ohms if you want, but if it blows....we technically said 2.6"? The reason I am asking, I am getting a Goliath Sr. 6x10 cabinet with the rig, and currently own a Henry the 8x8. I would like the ability to run both cabinets off the head, but don't want to hurt the amp. I am thinking running the Senior off of the 750 head, and then run the pre-amp out to a separate power amp to juice the Henry. Anybody have any suggestions? I know this sounds like a lot, but my band has the worlds loudest drummer, and the 2 loudest Marshalls ever built....at least it sounds like it to me! Thanks in advance!