Hi, all the people who love sound of good earphones like me but I will dissapoint you. Those earbuds are good enough just when you have got eq on your ipod/iphone turned in hip-hop(recommended)/R&B/deep/treble reducer. Why? This is only problem of those earphones. They are strongly shape in trebles(feels very painful ). Specifically at the frequencies from 4-5 KHz so in the music at the higer drums or at sibilance of singer or everything else. Thats why I dont recomment it for genres as Rock, Metal, and other electric guitared genres. But they do have also good character in a cleanliness of the sound especially at sharply defined details. And what a bass? Of course they are good but not very good or best but good in a bass because the bass element is here smaller than it can be. And finally what a treble? Here I can say that from a frequencies above 5Khz they are really good. Build quality? Sorry but it isnt very good because my earphones, especially right blown out after 3 months(and I really dont hear music loud,its just mechanical defect).
But in fact they arent bad... They are better than some Koss in same price but Sony as trademark isnt good at quality of sound of earphones or headphones. There are many better manufacturers like Sennheiser,Philips(some models),Klipsch,AKG(some models),Jays(there is problem with build quality) and other.