If you want good, customizable sound, then the S9 is a good buy. May not be the best MP3 player out there but definitely one of the best, especially when it comes to sound reproduction. User interface is way behind the iPods and iTouch. Video is also exceptional with the AMOLED display. It is also a powerful portable player that can easily drive higher impedance phones. If sound is your priority then the S9 would be a good buy

Great IEM for it's price. Produces a very detailed, transparent sound. Not for the basshead but personally I think the bass is just adequate, not too overwhelming. I just love these phones