Did you test out of the box MDR-E888? Then you probably did not know, that they will sound 100% better after about one month of listening (kind of warming up process). I don't know what was Sony doing while making them but these buds are almost the best on the market for their price. When I have...

I am not sure about ZUNE's HD sound quality, but I can assre you that X1050 falls short in terms of sound output against older Sony model S73x series. I am totally disappointed by Sony this time.