this proposed testing protocol is not valid for several reasons including the simple fact that it is not double-blindWho said it was going to be double blind?
I say "relatively simple" because of course you would need a proper ABX comparator and you would need to level-match the two signals to within a tight toleranceWhy would you think there are going to be level differences at either the DAC or Amp output via change in Ethernet cabling? You don’t understand how this works.
There there are two protocols here depending what is being tested. One is double blind but not strictly AB/X since it is self administered. Another is Single Blind since the person at the network switch would know what cable is in situ. The order would be randomly selected.
any proposed alternative testing protocol would itself have to be established as scientifically valid which this proposed protocol would probably not be considered because it is so suspect on so many points
the obvious truth of his hypothesis strongly suggest that he suffers extreme bias in this instance and should be disqualified from formulating the test but could perhaps participate in the testing as an observer or contributor.The obvious truth is hypothesis are meant to be reviewed by others and either reproduced or debunked. Anyone could be shown how to plug and unplug Ethernet cabling. Or I can do it and it can be recorded and monitored. No biggie either way.
I’ve stated under what conditions I would accept being incorrect in my suppositions. Including a cable that is 2600% longer and 9100% cheaper per foot than a 12 foot boutique cable. All on a $250 system that others said produced well recorded DAC => ADC.
My proposed method is also open to pointed and technically sound critique.
You are welcome to bring experts into the discussion if you wish and can.