I wanted to share my experience with my new Kemper Kone in case it may help anyone else out with their purchase.
First thing I did was put it in a closed back cabinet with similar dimensions to the Kabinet and fire it up.
At lower volumes it was...okay, though there seemed to be a slight unpleasant distortion in the high end.
When I cranked it up that high end distortion became VERY evident and there was a low end rattle. So far... not so good
Then after playing for a while I heard a slight pop and silence ......
After a few expletives, I calmed down and started sniffing around, no blown speaker smell at all, this was promising,
I then realized the back of the cab had vibrated so much it popped out the speaker cable. Nice work Kemper Kone !!
The next day inspected the cab, the back was some sort of plastic which is now trashed, but everything else was baltic birch.
I glued in bracing at all corners, added a layer of poly fill covered it with a t-shirt, and replaced the back with 1/2" MDF which I also braced.
The result was a drastic improvement. it sounded and felt SOLID. However there was still some high end unpleasantness.
What I realized is that the cab presets are still active in the cab section even when the Kone is activated in the output section.
My preset was on a vintage 30 preset which in combination with the Kone was giving an artificial twinge to my tone.
I found a better cab preset (C IR Creamback M 112) and I'm a happy Kemper! This thing sounds great!!!
So if you guys are having problems with the Kone - make sure your cab is well built and SOLID (this made the biggest difference by far.)
Then check ur cab preset in the cab section.
This speaker sounds every bit as big as my EVM12L !
I will be doing a head to head comparison with my Ev Thiele cab soon, just for the heck of it, I'll let you guys know how the imprint compares.