FRFR mode as in Kemper Kone ON, Imprints OFF? Yes I have played into a 2x12 EVH...sold the 5150 to get the Kemper of course
I had a Marshall 1960 4x12 before that but didn't own the kemper yet. I think I'm just coming to the conclusion the Kone itself is probably just fine and maybe a great idea to throw those in a 2x12 or 4x12, but a 1x12 just can't give me a enough for heavy rock, metal, or high gain playing where that low-end thump is needed.
You just need more Kones. 😎