I have had this MP3 player for about 6 months now and love it. It has a very good equalizer, bass boost and also has an intuitive menu. This is my second Sony MP3 player as I find the Apple iPods over-rated. I listen mostly to classical music and love the clean high frequencies. I rip WAV files at 1441Kbps using Windows Media Player for maximum sound quality.
I have seen other user reviews of Sony MP3 players and everyone seems to agree that they have among the best audio quality and are better than iPods.