Good post. This yangThat happened the moment people started to claim magical thinking over some mystery physics we don't understand while engineering amp circuits that they claim can't be modelled today by more sophisticated and more complex computers and even more sophisticated algorithms. Apparently the superhuman of hearing among us are now down to talking about software bugs or recording in ridiculous sample rates as the major differences between profilers and the real deal.
I'd actually still love to watch just one single youtube video of the golden hearing person who apparently exists and can tell the difference between real deal or profiler in double blind tests. The one who sends back their profiler because it just don't sound the same.
I'm calling people out on this one as I learn more each time they get called out like they have been for the past decade.
I think it would be a hoot to take the most entrenched anti-profiler person around who says their rig can't be duplicated and then do it and run 20 comparisons to eliminate random chance guessing correctly and watch their faces after getting the results.
It's fascinating that you're arguing tonal differences between modeling and tubes, yet when you call out the differences in tone between a 5153 and a Plexi, you point to the power tubes as the difference maker. In reality, the pre-amp section of those amps are where the greatest difference is. 6L6 vs EL34 is quite subtle and is really only distinguishable at high volumes. You come accross as knowledgeable on the modeler side for sure, but my guess is you're quite inexperienced when it comes to tube amps. Yes or No? Maybe you've never experienced what the response of a tube amp feels like? I don't know.How about this. Play like EvH if you think owning a Plexi over a Kemper is such an important point of demarcation for dynamic response, crispness and attack. Walk the talk. Even EvH didn't use a Plexi for his modern shows. He used an EvH 5150III. Tonally a very different amp with 6L6s in it.
Chances are you won't be as good as EvH nor sound like him with your rig but there are people running profilers who can do it.
So Kemper can't do harmonic feedback?
The "sound" of the modelers is certainly there. The feeling, through a 4x12 with volume? Nope. Playing through headphones at night while my kid sleeps? Hell ya. Recording? Absolutely. Moving my pant legs, getting feedback and feeling the amp naturally squish/sag due to the tubes running hot? Nope. Just isn't the same.
Throw up a YT vid and most if not anybody at all will truly know the difference. Get in a room with a guitar and cab I think most would feel a difference.