I am in my recording studio where I play through my studio monitors. I will not use headphones just to hear the Kemper neither do I want to hook up the studio monitors to the Kemper as they are hooked up to a monitor controller.
As mentionned in my initial post, software monitoring is activated in Logic as it is the only way to hear the Kemper at this point.
But when doing so when opening Rig Manager, the signal distorts and crackles which makes editing in Rig Manager impossible.
So I guess the USB option and the way it is designed is not for me then.
Too many (for me) unconvenient changes necessary.
Never had any similar issues before when I was using SPDIF/Coax connection with the Kemper. Will therefore go back to SPDIF and add the additional cabling.