Fair Blind Test??

YouTube uses lossy audio, so this is a pretty useless test. Some of the data is being discarded before you can hear it.

Besides YouTube's lossy audio, God only knows what microphone was used for recording the sound. For all we know, a cell phone was used.  Amazing how they use fancy equipment costing thousands upon thousands and then show it off with 128 kbps audio using an unknown microphone. But, the equipment does look nice....

DAC vs. phono what's the point after all?

Welcome to the audio world.  I once had an event where the manufacturer demonstrated several recordings.  They all progressed so you could hear how the manufacturing process was on sound quality.  Everyone agreed but one person who said, I liked the one before.  Well if goes to show, well, I am not sure what it goes to show!

Happy Listening.

You cannot judge Anything on you tube 

a true blind test you need a Flac file, like QObuz or tidal , or totally loss less no mpegs 

from electronics to every cable needs to be exact, even 1 different power cord 

can distort the test.  We have used switch boxes made by bryston 

this is very accurate where our tech friends put on a scope to measure  ,and That is what is needed for true accuracy .