Stax srm-313 voltage change help

[qqiao]

I recently got a srm-313 with two pro bias, the voltage is japan 100v, does anybody has experience to convert it to 120v us standard? Thank you very much.

The amp is still on the way, I found the internal photo from here,

[qqiao]

I found this pic from the forum,  how can I do some adjusts for 120V? Thanks a lot.

[spritzer]

Wait until you have your unit in hand as there are so many different versions of the 313