I took delivery of a MBP 15 yesterday and immediately noticed an issue with the speakers. There is a definite bias toward the right speaker while listening to music. It seems louder than the left, and is apparent after playing dozens of songs. The strange thing is that when I open the Sound preferences and move the slider to the left, then to the right, it seems as though everything is equal. But with the slider back to center, the ear definitely goes toward the right speaker which seems louder. Has anyone else experienced this? Very odd! Other than that I love this rev bump. Except for the trackpad, which I hate...always seems to want to group select items.