I initially thought the 1st riffs were the KPA, but changed my mind listening to the later examples. So basically I have no idea what's what.! Any guess from me would be just that - a 50/50 guess so I'm not going to bother Both sounded good!
I think this is a great example of the Kempers strength in live sound. A live band mix being presented to an audience through a PA makes any minor differences of profile vs stage mic'd amp so much harder to distinguish. Just my opinion of course.
Thanks for posting