Emu XL-7 & MP-7 User's Group

>  From what we can read on this very list or on various forums over the
> internet, it seems there's a batch of Command Stations that shipped with
> a fragile PSU.
> 

My question is to know if these failures happens when the XX7 are used
in 110V power. Do all the failures that happened happened in countries
where the power is 220V ? Any US user who had similar problem ?
Also the problem seems not related to the china/usa different
manufactures, since reports of made in USA command stations are numerous.
Maybe if we know that 110v is better, we simply have to buy a 220-110v
adaptator.
My 2 cents...