For me, when an instrument like guitar is panned to the extreme of one side on the 820, like in Nora Jones Painter Song, the lowest octave notes are not lined up with the rest of the instrument. I don’t have this issue on the Stax SR-009, Susvara, Noble Encore CIEMs or Utopia. As a guitarist it’s noticable to me from decades of playing acoustic guitar with friends. It detracts from the realism of the instrument for me. It could be the FR curves of my 820, as the other FR that was posted was slightly different in the bass region and that person wasn’t having the issue.