I was just updating some music with iTunes Match and wanted to compare the old file with the new file. After the file was deleted I listened to it in preview in the trash can to compared to new file in iTunes. To my dismay, the old file sounded better... MUCH better. I then did some experimenting including deleting the newly matched file and playing that using Preview and amazingly it also sounded MUCH better than how it sounded when played through iTunes. I went and made sure that I am not using Sound Check or Enhancer and my EQ is set to off so unless there is some other config setting, iTunes should not be modifying the sound. I also played around with the EQ settings and actually the Rock setting made it sound the closest to how it sounds through Preview, but still not as good. I did find this on the net so I am not the only one hearing this: http://www.mac-forums.com/forums/mu...preview-has-better-sound-than-itunes-osx.html but unfortunately there was no answer to the problem in that post. Is this a widely know issue, can someone else try this themselves and see if they get the same results. Frankly, after hearing how good my music sounded through Preview I hate listening through iTunes now.