It has been proven over and over again that quick switching is the best method to compare equipment. You can’t rely on your audio memory at all for comparisons.
And no I am not deaf either.
I don’t want to challenge anyone here.
I just wanted to know if those sonic differences were found in double blind tests.
Those ‚sighted tests‘ are just extremely unreliable and two perfectly measuring dacs (like the holo may and D90 for example) should sound identical.
But as we all know, real audiophiles don’t want to know about science and things like bias or placebo 