Ok, I got one question. I'm not sure if my ears are screwed - been playing a lot today but here goes:
Boot up the KPA with your favorite rig (let's call it rig1). Play this for a while. Change to a rig2 and immediately return to rig1. Rig1 now sounds thinner and seems to have more presence.
Turn the KPA off and back on and rig1 sounds fine again.
I dunno, is anyone else getting this or is my head screwed up today?
I will test this again tomorrow as it might be my imagination... plus I'm sleepy