I'm listening through my home theater system, and through the front speakers, the music sounds fine. However, through the rear, it is actually annyoing how poor the sound quality is. I'm telling you, I'm pretty picky when it comes to music. These itunes files are definitely NOT a 320k bitrate, which is CD quality.
Most Ipod users wouldn't be able to hear this...even front primary speakers probably couldn't pick this up. However, the rears produce a full, irritating sound with itunes files.