Voltage Conversion

I am looking for someone to help with voltage conversions from 110 to 220volt. Krell and Levinson in the US no longer factory convert. The 50hz diabolical sensing chips are the issue.
Are you looking for a voltage converter?
Or maybe you just need to reconfigure the power transformer IMO
Are you moving from the US to a 50Hz country? If you are, there are two options. Simply have the Krell/ML agent in the country you are going to convert from 110V/60Hz to whatever 50Hz voltage you need (I know, horrendously expensive!). Or alternatively, buy a power regenerator (PS Audio and others make them) that converts AC to DC and back to AC at whatever frequency you want.
Looking for an actual conversion. If these chips see 60hz they lock the unit up until a code is put in supposedly.