New phono stage from SOTA

@mijostyn  : You are trying to win and this is not the issue.

I never post  or talk about 200khz, so what's all about.

Re-read and then post again or leave that way but please don't try to win, it's not the main subject:

""" Given the existence of musical-instrument energy above 20 kilohertz, it is natural to ask whether the energy matters to human perception or music recording. The common view is that energy above 20 kHz does not matter, but AES preprint 3207 by Oohashi et al. claims that reproduced sound above 26 kHz "induces activation of alpha-EEG (electroencephalogram) rhythms that persist in the absence of high frequency stimulation, and can affect perception of sound quality." [4] Oohashi and his colleagues recorded gamelan to a bandwidth of 60 kHz, and played back the recording to listeners through a speaker system with an extra tweeter for the range above 26 kHz.   """

R.

@mijostyn  : What we can sense and what we need to know how measure, where measure, tools, etc. etc is extremely complex in a human being body where the brain knowledge by scientist/neurologist is only 27% and this 27% not inclusive in " deep " fashion . Your ears maybe can detect 18khz however you listen a way higher frequencies and even the brain sinthetized following harmonics by its incencious memory experiences during your life.

So not you or me or any one else could say: this is inaudible. Well you listen 24khz that is inaudible conciensous for you.

https://www.britannica.com/science/human-sensory-reception

https://www.britannica.com/science/human-sensory-reception/Nerve-function

We all have to learn, I'm learning from this thread about because I have to make some searh on that issue.

Who win? everybody, not me or you but everybody.

R.

Dear @dogberry  :  " is hopeful, at best ".

Well in the link posted  ( the first one. ) those gentlemans came from CalTech, MIT and AES, so are not ametaurs but gentlemans with high knowledge levels and try to explain as better they can:

" From the fact that changes in subjects' EEGs "persist in the absence of high frequency stimulation," Oohashi and his colleagues infer that in audio comparisons, a substantial silent period is required between successive samples to avoid the second evaluation's being corrupted by "hangover" of reaction to the first. The preprint gives photos of EEG results for only three of sixteen subjects. I hope that more will be published ".

At the end is that exist lower than we can think knowledge levels by scientist of the overall human being TRUE " operation " whole body and specially this high frequency main subject because who cares about when it's enough that " somebody " says: " inaudible " and that's it. Rigth?

R.

@rauliruegas 

winning or losing has nothing to do with it Raul. This is a conversation trying to determine the way things work on a rational basis. We are forced into making assumptions about certain things. That humans can sense sound by mechanisms other than the normal auditory pathways is not in doubt. That it affects the way we listen is obvious. Some crazy fools like me surround themselves in subwoofers powered by huge amplifiers just so we can have that effect. Given the variability of human traits and associated issues like a hearing deficit. We vary in our ability to do this and at what frequency. Certainly the visceral sensation of music adds to our enjoyment. There is audible, by whatever means and inaudible. It is hard to know what you are missing.

@mijostyn  : Absolutely I agree and that's all about. Good!

R.