Anyone, are there examples where a cable maker, amp maker, etc.. has posted on the internet or anywhere else, all of the testing that was involved while designing their equipment?
Yes. Plenty of them, obviously not all. I am starting to think your web browser only “points” you to a certain website. For some reason. Or your Google machine is broken / defective 😂. Which is pretty normal. Most people only read stuff that aligns with what they believe in, and ignore reading everything else.
Specifications and reviews from What HIFI, Stereophile, etc.. are given but the reviews are primarily done by listening.
Hmmmmm…. Every single Stereophile review has a very detailed section on measurements only. From J. Atkinson. Again, see above, the point I previously made