The EHU600 is limited to 600W. Find the maximum draw of what you want to plug into that and double it. 600W is small for an amp. unless it's a flea watt.
I think BigShutterBug is referring to these:
http://www.geocities.ws/jonrisch/catch2.htm
http://www.signaltransformer.com/content/power-supply-step-updown-power-isolation-transformer
And this is an enclosure that can fit up to the 2KVA model.
http://www.hammondmfg.com/dwg14d.htm
I think BigShutterBug is referring to these:
http://www.geocities.ws/jonrisch/catch2.htm
http://www.signaltransformer.com/content/power-supply-step-updown-power-isolation-transformer
And this is an enclosure that can fit up to the 2KVA model.
http://www.hammondmfg.com/dwg14d.htm