Ok , lets forget, for the moment, analog v digital,cables, harmonics, power supplies etc etc
Every single manufacturer and supplier of these special ‘audiophile’ switches and every single ‘reviewer’ claims that these switches will "improve" the digital audio being passed through them.
Every single one
This is why I asked my original question, because I could not see how a switch working at level 2 or 3 can affect the encoded audio (or video, they also claim !) in level 7.
Are you saying that
they can or they can’t. It can NOT be both, and bear in mind that you keep repeating that the digital signal is not degraded by a switch
All I want is a ‘yes, they can’ or a ‘no, they can’t’ please. No dissertations on analog theory please