I decided to have a 1 minute tweak...please forgive me.
Blew my mind!
Go to the Pure Blues Profile that comes in the Kemper...play it for a minute or two, it's a great Profile...use your Les Paul or similar guit..
Its the Matchless Chieftan amp with a Matchless cab and Telefunken CU29 mike.
Load up either of these rigs of mine.
Same amp/Profile, the Matchless Chieftan.
But, I changed the cab to the Engl 412Pro with a KSM313 and SM57 mikes.
Then I tweaked the cab parameters a little.
The tame Matchless Chieftan "Pure Blues" Profile/Rig turned into a 'fire breathing monster' with the Engl cab and different mic's.