Hello,
I built my Crack + speedball last year and i never had problems up until today i noticed buzzing in the right channel.
When i turn the volume all the way up it goes away completely.
It is not affected by the onput device either, if i unplug my dac it still persists, and it also stays when i short both RCA Cables Together.
If it goes away when i turn the Volume up, the potentiometer must be the cause or could it still be something else?