It use to be that every receiver you bought had a little switch on the back to switch between 110 and 220V. Now a days, you can't find any. I am looking for a source to purchase a receiver for our vacation home in the Philippines, which is 220V. The selection in the Philippines is poor, and expensive. They mostly cater to 2 channel amps with no surround, Videoke is the craze.
If anybody knows of a good North American retailer that sells 220V receivers, please let me know.