Dear Christoph, I am currently not profiling amplifiers and I don't have any specific in mind. Thank you very much for your help offer. What I meant is propably what you describe -power amp + preamp distortion.
As I was using profiles mostly created by Gregory, We have talked about the disadvantages of KPA many times, such as the inability to profile several levels of clipping like a preamp + poweramp. The last example of an amplifier I remember is the Victory Kraken. In settings with a higher Master Volume, the profiles did not come out too well and did not reflect the characteristic Grit of the overdrive of the output tubes.
Such a sound is useful at times. I also tried several times with plugins. I already know that this is a KPA limitation and it does not necessarily bother me anymore.
I learned to use therectifier FX and new overdrives which allows me to change the character of clipping.
Thanks a lot for these new effects.Perhaps Rabea used this knowledge it in his video in favor of QC. Anyway, all I wanted to say is that if QC can profile such multi-stage distortion, it is a plus for QC. It doesn't change anything for me as a KPA user. My KPA still sound great and nothing ont to steal it from me 
I don't feel bad about it, nor am I going to be too emotional about it, like some of the users here ;).