Which vinyl test record do you own that's flat out to 20kHz? I have yet to find one. I have three and all drop fairly sharply at around the 16-18kHz range.
Also, I preferred the sound of Tidal when I compared it to Qobuz earlier this year. Tidal had more treble extension to my ears and Qobuz had more bass and midrange warmth. We are talking about the margin of splitting hairs here though.
I don't doubt you are reading a 15kHz cutoff but I am pretty positive I am hearing over 15kHz with Roon/Tidal in my setup. Are you sure your streamed audio isn't being transcoded somewhere in your audio chain? Not sure what frequency response mp3 has because I never listen to them.
Also, I preferred the sound of Tidal when I compared it to Qobuz earlier this year. Tidal had more treble extension to my ears and Qobuz had more bass and midrange warmth. We are talking about the margin of splitting hairs here though.
I don't doubt you are reading a 15kHz cutoff but I am pretty positive I am hearing over 15kHz with Roon/Tidal in my setup. Are you sure your streamed audio isn't being transcoded somewhere in your audio chain? Not sure what frequency response mp3 has because I never listen to them.