I have only ONE gripe about the Kemper:
I'm going DEAF.
I love it so much, and I keep jacking up the volume! I measured the decibels and it's easy to play in the 100 range.
When I turned down an EVH patch to sub 85 levels (where you don't get hearing damage supposedly) the master volume was on 2.7!!
That's NO fun!
Seriously though, Kemper should put a notation in the manual to warn people. Maybe have a way to show decibels so you can get feedback on what's safe or not.