Hi Marc, I try to give you the answers you need...
They say the Kemper Kabinet can imprint speakers, how is that done?
The speaker imprint is a specific "equalizer mask" applied by the profiler itself when you use the kemper Kone.
Kemper team has developed a specific "eq" response that - starting from the tecnical characteristics of the Kone - perfectly match the "imprint" model you choose to use.
is it integrated in the Kemper Kabinet? or is it done by the Profiler?
Kemper Kabinet has got Kemper Kone inside, so you can Use imprints with kemepr Kabinet (the algorithm is integrated into the profiler SW)
what about the simulated/profiled cabinets in the rig-profiles? can I use them properly only with a PA-speaker? or?
Yes they are intended to be used via PA Speakers, so, when you play live you can comnnect directly to the mixer and give the audience the mic'ed output sound. You can find a lot of studio profiles shooted with different type of mic, in order to choose your preferred sound according to your taste.
What is the diffrence between active an passive Kemper Kabinet? does it have a own integrated power amp? or just extra power supply? and why?
At the moment Kabinet is only Passive and you need a powered Kemper to run it. If you own a Stage or a Non-powered Head or Rack you can add a third party power amp in order to power the cabinet
Bye,,
Andrea