USB buzz when using opz with op1 and tx6

I’m trying to do the same setup as son wu. But when connected by usbc sending midi, I get this awful buzz. Anyone else experience this?
Also is there a fix? Loop isolator, or turning of charging on opz or tx6 doesn’t change it. And the op1 doesn’t show me anything when I go shift+com then pressing or turning the orange encoder. If I enter the opz midi menu the buzz stops, but then there is no sound.

1 Like

I ran into the same problem. I mostly solved it by running a ground loop isolator connected to the OP-Z and the OP-1.