as the soundstage seems much much wider and music is much more relaxed
You can't get these effects in the digital domain.
If the digital data gets corrupted you can get clicks, pops, and dropouts but nothing that can effect the soundstage.
Usually digital corruption is gross and obvious... For example, a flipped-bit in your bank account is equally likely to cause a 1-cent error or a billion dollar error.
Lossy compression (MP3, etc.) can introduce artifacts that CAN be subtle and difficult to define but that's a different subject.
Soundstage is related to the recording, speakers, speaker placement, room acoustics, and the listener's brain.
Nobody knows what "relaxed" means. It's one of those words that means different things to different people.
You were listening "too hard" trying to hear a difference, and then explain it. You didn't do a proper blind, level-matched,
ABX test.
Also see
Audiophoolery for the characteristics that REALLY define sound quality, and the associated scientific/engineering terminology.
and I don`t get listening fatigue.
Psychology also depends more on the listener. Sometimes the appearance of the equipment affects how you feel. An expensive looking amplifier or a tube amplifier might make you more relaxed and less fatigued. And, maybe the music and loudness... Hip-hop and some pop music fatigues me, especially if it's loud or if it has that annoying one-note bass. A cheap subwoofer can give that one-note bass but it's better to discuss the poor bass than to describe the psychological effects.
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