But he says that even in USB them sounds worse than bluetooth. And USB still uses the DSP. So this might not be the case.

I’m not offended and you might be right to think that, but I’ve never came across someone who on a blind test can know the difference between lossless and a good mp3, that’s it. Not a single one. Lot of talks but nobody did that. Ever. Prove me wrong and then I will be happy to look silly and I will continue my journey until I get there too.

I’m 26, 10 years into hifi, my hearing is regularly checked and it’s perfect, I have (and had) tons of hifi equipment, and everybody saying that he can hear a difference, is basically lying. That because I do (on specific songs or songs part), and the difference is so tiny is laughable. Also I’m sure actually nobody can’t do this test, and I have never seen someone doing so. Me neither of course. So everytime I see this kind of post I just make a laugh about it.