Display MorePretty sure that's the reason for the funny behaviour.
What amp are you trying to profile anyway, you never mentioned.
Also: "Had to turn up the return input adjust on the KPA about +12db if that means anything."
If you're doing that, your likely to get more gain in the signal, which is likely why it sounds buzzy like grunge.
Manual says the KPA will adjusted for the input signal difference during the profiling process anyway, I think the reason the manual suggests making the adjustments is simply to be able to better A/B between the KPA and the amp during/after the profiling process. As for the gate knob that may have played a factor but isn't the main issue. The congestion and lack of organic clarity/depth is a common theme with what I've heard out of my KPA so far. The clips I provided do a pretty good job explaining the difference, but keep in mind the KPA clip is AFTER I had to tweak some of the clarity & definition settings, etc. The virgin profile was even worse....