@hilde45 I've been in this game long enough to understand and believe the logic of specifications and theroreticals, especially in regard to streaming. And this is gone into in much greater depth over at audiophilestyle.com forum. The arguments go back and forth, but I can only say I often observe open minded obectivists try a tried and true streaming upgrade, hear the improvement and come over to the 'dark' side. Not sure I've seen a single instance of subjectivist moving to objectivist camp.
Not a surprise that any particular component that works for one individual doesn't for another, doesn't prove component ineffective. This especially true in streaming setups which are almost universally unique.
I've seen so many opposing technical explanations for why any particular streaming component should or shouldn't work, and I've seen these disagreements go deep in the weeds far past my level of expertise. In general terms all these arguments come to a draw for me, so I go to my perception or senses to determine for myself which direction to take. My take is I'm not trying to please a measuring bot or someone who professes to be the objectivist king, I'm into audio to please myself, provide music listening pleasure only for myself. I don't care if someone believe me delusional, and tells me not to believe my senses. What a terrible place to live, always doubting one's own senses, especially when it comes to something as benign as pleasuring oneself with audio system sound quality! One can understand and be mindful that our senses can be faulty, but that's for far more important things than evaluating sound quality of audio systems! I don't understand how some people get any pleasure from audio what with always worrying about some other's judgement of their choices! I say trust your senses, the worst that can happen is you waste some money, at least you won't suffer from inadequacy!