I, too, have found issues with recordings. On one CD, there was a distinct low frequency 'thump'. I originally thought it to be a manufacturing defect on the CD, but when playing the same album via Qobuz, I heard the exact same 'thump' at the same time on the recording.
So, I think a distinct possibility is that the original recording may have a flaw.
Perhaps if you can try a streaming app and see if the same issue occurs, then you might have your answer.
Bob
So, I think a distinct possibility is that the original recording may have a flaw.
Perhaps if you can try a streaming app and see if the same issue occurs, then you might have your answer.
Bob