Step Up/Down Transformers - Good or Bad?

Sorry for the bad post with typos , etc.
Joe

Glrtrgi, If you are going to live in the States for an extended period of time it might be worth having an electrician install a 240 volt line for your Euro amps.

USA homes already have 240 volt but typically limited to power electric cook range, clothes dryers and heater-furnace.

I've successfully used a pair of 240 volt runs in my stereo system for more than a decade with no issues.

I think Albert has the best solution. You should however remember that the power company uses various step down transformers before it gets to your house. Thus there should be no real problem.

It is an improvement rather than a problem from an incoming power quality perspective, as long as it is not undersized. Some of the audio power conditioners sold for significant $'s are not much more than a 1-1 transformer in a fancy enclosure (fwiw, installing a regulating transformer in front of sensitive electronic equipment is common practice in industry). Sola, and others, make a good regulating transformer at a reasonable price if you wish to get fancy. The 240v line solution works, but kids tend to stick things in outlets at some point in their life & the penalty for doing this can be much higher. Good luck!