I exported a mix down through my StudioLive 16.4.2 AI mixer, using 2 Track L & R as my output channel. It's a stereo mix, drum overheads are panned hard left and right, toms and cymbal close mics panned slightly left and right to taste. When I played back the mp3 files (had to email them so I needed them to be small files), they played back in mono. Tried importing the file as a separate track back into StudioOne and it showed up as and played back in stereo, so I'm not sure why it's in mono when I play the file back through iTunes. In fact, everything except what I play in StudioOne is playing in mono. Any clue why this is happening?