[vcf-midatlantic] OT - 120v to 240v step up recommendations

Hey folks I have a new Amiga PSU coming on from icomp that is 240V only. I'm looking for recommendations for a 120 to 240V step up transformer rated for at least 100W (so it doesnt have to work hard). Preferably silent. Etc. Also what should I avoid in this space ? P.S. This PSU is the "CA PSU" from icomp - and not an original commodore unit (as they are hard to find and old) nor one of the meanwell based units on ebay that have problems with accelerated amigas. I do have a cheap one and while it can do my slightly expanded 1200 it's hard fail on an expanded 500. Thanks !