“If two different hi-res streaming services, say Qobuz and Tidal, have the same track available, why would one sound different from the other, let alone better?
@russbutton
Possibly because the labels may provide different masters to each platform. This isn’t unique to streaming — the same thing happens with physical media too, where variations in mastering can lead to noticeable differences in sound quality.
In case of physical media like vinyl, you can usually trace the provenance of a recording. With streaming, though, we’re left guessing. They don’t disclose which master or source file we’re actually hearing. As @ghdprentice pointed out, Qobuz in general, have a better SQ. These differences are more apparent in well appointed audio systems.
Cheers!