Does this KxxS shares the same shell and finishing like the KPE? By any chance did you get a chance to listen to the Amadeus too?
The KxxS has a similar metal and shaped shell to the kanas pro. The only difference is the faceplate has 3 angled cuts with unpolished edges and the KxxS name is on the side of the faceplate. Also the nozzle is missing the notch at the end but that might just be for the pre-production unit.
I didn't see the Amadeus, unfortunately