It shouldn't, unless the mix down was done for headphones. If it wasn't mixed for headphones, the problem is headphones exaggerate stereo separation. See: htt

It shouldn't, unless the mix down was done for headphones. If it wasn't mixed for headphones, the problem is headphones exaggerate stereo separation. See: http://www.cns.nyu.edu/~david/courses/perception/lecturenotes/localization/localization.html http://www.cns.nyu.edu/~david/courses/perception/lecturenote... The goal is to simulate playback on speakers. If it breaks music mastered for speakers, I'd consider that a bug.