Good evening,
I'm struggling with a bad ground loop (I think).
When I've my Kemper plugged into my Focusrite 2i4 I can hear a noise, expecially with high gain profiles, which is directly linked to the movements of my mouse and even when my CPU is working more intensively.
I've tried to push the ground/lift button both in the Kemper and on my speaker (FRFR108) but it hadn't any effect.
I can hear that noise even with the headphones directly connected to the Kemper.
I've tried also to move the Kemper in a separate current outlet but it was useless.
The only way to stop this is to unplug the USB audio interface. So I think the issue is coming from the USB connection that it should be causing a ground loop.
But I'm quite confused, because I've kept the Kemper connected to the same motherboard to use RigManager and no noise can be heard.
So, should I have to change my audio interface because it is defective or should I have to investigate more (e.g. on the PSU of my PC, which is mid-range one)?
Has anyone win this battle with similar problems?
Many thanks!