Well, this nw-ms90d only has 2 band equalizer: bass and treble, so the sound may not be as rich as later md players (which have 6band equalizer and virtual phonic sound. However, in term of sound quality, it is very good by itself. Paired up with a pair of mdr-ex85sl headphone (which i have) and you got yourself a superb mp3 player. I have an mz-n10 and an mz-e10, and in term of sound quality, the nw-ms90d is on par with these md players, no exaggeration. Stuge: thanks for the suggestion! i'll head over there right now. Good luck with your quest for a new mz-dh10p