Allright. I much appreciate your "helping hands" and your suggestions! Thank you! I will try these out also checking the beta5 and some different sims and give the other power amp i still have a try again... My goal is really not to match my Koch, but the likely depth and feel i get out of it in relation to the guitar cabinet. As i said and you are right, i really can`t exclude that it is really a apple to orange thing. I will take a further look into this ...My first advice is to turn Damping to zero. The Koch preamp is somewhat Marshally. It has a Marshall tone stack. The power amp, however, is more like a Vox. Turn Damping to zero and Hi Cut to zero. Turn MV way up to start as Vox power amps clip easily.
Using a model that has a negative feedback power amp is simply not going to the sound or feel the same as a model that has no negative feedback.
I still think this is more a case of apples-and-oranges than anything else. You are comparing a model that is very different to the actual amp and hence will have huge differences in frequency response, and I mean huge as in many dB. Our ears are more sensitive to frequency response than anything else. This is basic human physiology. Our ears are primarily FFT analyzers and understand frequency response more than any other auditory metric. I read all kinds of theories from guitar players on what they think they are hearing and yet what they really are hearing is simply a frequency response difference.
Yep, this is a problem and surely includes me. When i boosted (increase) the Lo- and Hi Res in the speaker tab i thought it goes into the right direction - in fact this result in also in a difference frequency response ... otherwise i thought, yes .. a bit, but there is something else missing going on, i really will triple check tomorrow and try your suggestions and some ideas coming the last hours to my mind ...I read all kinds of theories from guitar players on what they think they are hearing and yet what they really are hearing is simply a frequency response difference.
Perhaps it happen and i will find a few firmwares later my Studiotone in the Axe ... would be perhaps helpful to understand some things more or better ..
@YEK: Clinical? Harsh? ... Meh ....