I connected my H9 to the back of the Kemper and set up an mono effects loop in the X slot and I'm getting a mid-range, nasally sound. Almost sounds like a fixed wah sound. I turn off the X slot, and it goes away, put it back on, and the coloration is back. I moved the effects loop from the X slot to the MOD slot, and it works perfectly. No coloration of tone.
What's the deal? Thank you guys!