Moving to France

Contact your manufacturer for precise info for each device. (minorl is correct.)
Many power supplies have transformer primaries which can be switched from parallel to series by moving a few wires, and changing the fuse and IEC power wire (they hesitate to reveal this to reduce grey market imports).Have a great time in France and the food is wonderful! (Escargot is only an appetizer). Learn the language.

I lived 3 years in mid-France with an Oracle Delphi. I ran all the front end components off a smaller transformer wired through a US power strip using the US power cords. Be sure to buy a $6 test plug to verify you have plugged in the transformer into the 220v to get the right response on the 115V tester, and mark it so it is plugged in correctly to the 220 v outlet each time. I bought industrial transformers from my company's "matierels usees". I used a bigger transformer for my amp, but I encourage you again to contact the manufacturers to see if a local tech can modify the primary transformer connections.