i know you have much better and refined ears than me but I don’t hear any clear difference between any of the three clips. If there is a difference it is relatively subtle. However, in you example the difference was vert clear. I don’t doubt the difference is real in your example but I’m struggling to explain why it should be dramatic wheres it is barely perceptible on any profiles I tried. I wonder If there is something else in your settings that is having an impact as well as clean sens? Or whether there is something specific to that profile? Presumably you get the same effect with other profiles too though which is why I did the test with a factory content profile.
I haven’t had a chance to do any further tests yet but I wonder if Per’s observation could be explained by something other than clean sense. The Kemper does a lot of level matching in the background so maybe clean sense is affecting the signal at more than one point in the chain.