Pardon the title, but I wasn't sure what else to call it.
I'm running a Morning Glory, Klone and aTS808 into the front of my Kemper and into an MBritt Matchless DC30 Ch2 profile, with wet effects in the Kemper's stereo loop return. The problem I was having, and getting a little frustrated by, is that the Klone (a SickAs Blackout) was adding a BUNCH of high frequency information that the amp and cab profile alone couldn't tame. Which is strange as the cab profile, in theory, should filter that out the same way the real cab does (can anyone explain why it doesn't?).
Anyway, as a result, I had to turn the treble knob on the Klone way down from how I'd run it in front of a real amp. Which bothered me as I sometimes run the Kemper and a real amp in stereo.
I added a Studio EQ after the amp. I set the low and high cut at 85hz and 9khz respectively and was able to return the Klone's tone controls to exactly how I would run them into my real DC30. I also added a small (.5 boost at 300hz and 5khz) with the same EQ.
Hope that helps anyone running OD's and distortions in front of the Kemper!