I received my Trace Elliot AH600/7 head today. The seller stated that the AH600 can handle a 2ohm load. There are two speaker outputs on the back, below EACH of the speaker jacks it says "minimum impedance 4 ohms", once for each jack. I take it this means I can only go as low as one 4 ohm cab per output, equaling 2 ohms of combined impedance. Or I could use one 8 ohm cab per output....Yes? The seller of this amp stated that he frequently drove a 2 ohm load (claiming 1200w@2ohms) On the back of the amp it says "600 watts RMS" and 1200 watts Peak. Thus my scepticism. Something else, when I requested a manual from Trace Elliot for this amp, all the customer service rep sent me was a PDF for the GP7SM Preamp, which IS the preamp used on my AH600, but NO info on the power amp section, hence my concerns regarding impedance as stated above. In addition, on the GP7SM manual, it states that "this preamp is used in the following amps and combos. The AH600SM is listed, but nowhere on my amp is it referred to as an AH600SM. "AH600/7" is printed on the back of the amp, and "GP7 SM" is printed on the front. So should I refer to this amp as a AH600/7 or AH600SM? I just don't understand the inconsistency. If anyone has ANY information at all about the AH600/7 or AH600SM, or if you think you can shed some light on my oxygen-deprived brain, Please respond.