Moving to France

To the OP: yes, a toroidal step-down transformer is just the ticket. I suggest sizing it at about half again the total 'wattage' of your components. Plitron used to sell good ones, but they have become pretty hard to deal with - you could try.

Drink a Grand Cru for me!

France is lovely:-) step down for sure unless ya ain’t coming back

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.

You don't mention how long you're planning to live there, since you want to keep your components I assume it's a temporary move. Step down transformer would be the easiest route. If you're taking a turntable it might not run correct as the 50hz would make the motor turn slightly slower. There are frequency converters but they're pricey.

No no Miller carbon. He said France, not Seattle.