I just found another new problem with the Kemper Stage. I've just tried out the main output and the monitor output for the first time and there's an unbelievable amount of noise floor. So much background hiss...even when I set the main or monitor output to off in the output settings. FOH and my FRFR cab will not like this haha.
The headphone output is dead silent with no background noise at all so it's not something external affecting the whole unit.
It's not a ground loop thing as the ground loop options did nothing but also I plugged it in to the same power plug circuit as my Golden Age Project Pre73 to test things... I cranked the gain and output of the pre 73 and still didn't get as high a noise floor. So it's definitely not external factors or dimmer circuits affecting things. It's an issue with the outputs on the Kemper Stage I think? I had white noise from the headphone output on Kemper Stage when the Kemper is off and Kemper Support said they knew of the bug.... Do they know of the bug with the main and monitor outs too?