ETHERNET CABLES

@soix  I have tried “audiophile” Ethernet cables, I have tried UpTone’s Etherregen, and I have not heard any difference. Normally for my system I have Cat6A in the wall, and Cat6A from the wall to my NAD M50.2, but due to a renovation project, I am actually using wireless right now. 
 

the point here is that there is no theoretical possible improvement, there is no measurable improvement, and yet some people hear a difference, but others doesn’t. To me, this then clearly lies with listener, not the cable or switch. And if people want to spend thousands on dollars on Ethernet “improvement”, that’s up to them, it is a hobby, do what you like and makes you happy, but don’t argue that it is a night and day difference for everyone, reduces noise, and that it cleans up the stream from Qobuz or some other platform, because it doesn’t.

ethernet cables are unlike any other cable, digital or otherwise, in your system. 

@nonoise I don’t know to laugh out loud or cry at your level of ignorance, but first, I am not trying to offend anyone.

Second, what happened with your analogy with cable tv vs Blu-ray? Facts didn’t line up with your world view?

cables do make a difference, to a point, however, for Ethernet, a base cable provides adequate performance for all the protocols above, and there are many, to function properly. And that is what matters. The whole stack of protocols include numerous error detection and correction mechanisms, Ethernet specifically is balanced and includes common mode noise rejection. I get it, when you don’t understand any of it, it is easy to just throw money at it, and then tell yourself it made a difference. 
 

I have of course tried it, and products like Etherregen, and there is no theoretical or practical difference in sound.

Agree with the comments regarding the Etherregen.  I have it and did not notice any improvement in sound quality (it's fed into a Sonore UltraRendu).

@cleeds :

Measurementalists enjoy no immunity to confirmation bias;

I disagree. Since the human and emotional factor is removed from the equation & decision making process (i.e. listening experience), then there is nothing to worry about. You would just look at the measurements, and go by what they say. Computers. What you hear does not matter, as what you hear is really what you want to hear anyways. It’s all in your mind. Just go by measurements. And you don’t have to do them yourself, use those available in the science internet. By removing the emotional aspect on your decision on audio, you have also eliminated the confirmation bias as well.

This makes the whole process of buying audio equipment and building very easy and time efficient. No need to spend years and decades to figure out what you like and enjoy (again, you hear what you want to hear, hearing means nothing). No need to spend money on tickets to audio shows, no need to visit audio stores. No need to waste time meeting audio friends and going to their house. None of that useless time consuming stuff. You just spend a few days reading stuff on science audio sites, and boom! you have yourself a system. With no confirmation bias whatsoever. No need to question how it sounds: because it measures great, it definitely sounds the best. Again, no confirmation bias, and not relying on such unreliable / archaic tools like your ears. And you save a lot of money, as the best measuring gear (therefore, best sounding) is typically very cheap.

I put a link of fiber optic cable between my router and my music server. $70 investment. Ok, I also added a pair of $85 linear power supplies to power the FMC’s. I figured no sense adding noise back in with cheap wall warts. It made a significant improvement in the sound of streaming music. Is it a figment of my imagination? My cousin did the same thing on his system and was shocked by the improvement it made.

I would hope that people would get past the, "it’s just 1’s and 0’s" and come up with an understanding as to why it works. Then more progress can be made. But no progress will happen until we all move past the denial stage.

My internet still comes in on a cable- 500 mbs.  My cousin has fiber coming up to his house.