[quote name='Francis Pettifer' timestamp='1432158151' post='2778806']
The ah600 features 2 300 watt power amps in one case. Each amp will deliver 300watts rms into a 4 ohm load.. Under no circumstances should the 2 amplifier outputs be connected together. Each output is designed to drive an individual speaker enclosure. It is quite feasible for each output to easily drive 2 8 ohm cabinets wired in parallel, hence 4 ohms to each channel. Therefore you can drive up to 4! 8 ohm speakers in this way. If you activate the built in electronic crossover, the left hand Chanel drives the low frequency cabs, and the right hand channel drives the higher frequency cabs. Do this, and your on stage sound will be fantastic. I've owned one since 1993, and they are a totally brilliant amp, particularly if fronted by the gp12smx per amp.
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That's the 12 band head - the OP has the 7 band head which is a mono 600W head.