About 12 years ago, I played rhythm guitar on a track Michael did lead and over dubs on. He used a first gen POD. Point being, anything is possible. He and Lukather are old friends- Good chance he's at least tried a KPA.
and, he is also a geek of gears like Steve = so he has probably tried already a Kemper !
... but I didn't see one on THIS video ? look at this ( same gig) video = http://www.youtube.com/watch?v=o1QQN9XdOQw
He is playing which seems a Fender with an extension cab , no ?
I would like he owns one and ... share some profiles of his Dumble ... and some other jewels !!!
( he is used to sell his equipments here = http://stores.ebay.com/lavintagegear/ ... take a look, sometimes it's ... amazing !!! )
Hb