I looked at the manuals for those two amps... At 230/240 V, the rated fuse for the Iamp800 is 6A and the rated fuse for the Iamp600 is 3.15A. Since the current draw of the amp is less than those numbers, won't a 10A power conditioner work just fine?
Hmm, when I looked on the back of the Iamp600 it said 4a but then add on to this a pedalboard with a power supply that can draw 2.4a (it doesn't come close to that but it could), then 2 wireless units, soon to add a compressor etc it all adds up