My point about electrical measures is simple : they are INFORMATION we must take as information, often very useful ...
Amir give us much more information about the design of a component , then we can only thanks him for his " knowledge" ...
My other point is : Information is not knowledge...
In audio as in any field the difference between information and knowledge is simple and explicitly given by the great mathematician of this century : Alexander Grothendieck : " an information may add something to us but did not change us, knowledge change us "... ( in his book " the Key of dreams") 😊
In audio, acoustic knowledge and basic psycho-acoustic experiments change us IMMEDIATELY, because they make us TOUCH and FEEL what is timbre for example or dynamic or transients or immersivenes, sound sources apparent localizations, or the listener envelopment and the sound source ratio etc , by experiments varying acoustic conditions in our room.
These experiences not only add something as a mere information, as information about the design of a component can do, but when put in place in some order transform our hearing being completely and without coming back , we begin to be conscious of new aspect of us in relation to the sound and to the soundfield that we could not even imagine before it ...
This why i said that we must learn how to listen, it is not given by purchasing 20 amplifiers or 30 headphones...It is information we gain by purchasing brand names not knowledge... We can buy information not knowledge... We can buy a book but we cannot buy the understanding experience of the book...
This is why Acoustic is the heart of audio... Not electronic design by itself alone...Anyway revolution in electronic design also often comes from psycho-acoustic principles, facts or discoveries : Smyth realizer or Dr. Choueri BACCH filters among many others... I remember atmasphere explaing here 1 year ago very interestingly how his psycho-acoustic knowledge inspired him for the better design of his tube amplifiers for example...
« Sorry for your theory but my wife’s information is already knowledge»--Groucho Marx 🤓