Krell Kav 300iL IC parts

Hi !
I have a Krell 300iL the voltage is 115v/60Hz the problem is my place the voltage is 220v/50Hz and i want to change the voltage , and my place did not have Krell dealer and i need this IC parts 300iL V1.06 60/50HZ to change it by my seft . have any body know this IC parts where i can buy ? I wiil post picture if need . /thanks . Please help .