I have two Kones in an Avatar open 2 x12. Curious how much difference an actual Kemper cab with Kone would sound? Take the extra speaker out of the equation. Does the closed back, specialty designed cab change or "sweeten" the tone?
Would love to try one but hate to burn almost $500. USD on the hardware (and not receive much benefit - value).
Haven't tried an open back cab.
I did buy a Kone and got a local builder to clone my Kabinet which came out great.
It occurs to me that if you did buy a Kabinet and didn't like it you could probably flip it for almost no loss. It really is good IMHO.