Well, yesterday my friend bought the Koss porta-pro @ 80$ from Plaza Singapura. I got the chance to try it. It was good but i was not awestruck - a feeling that I was expecting from a headphone which is considered much better then a stock earphone.
I am using the earphone that came with my samsung K3 (samsung EP-360). I could notice the difference but was not impressed. Any better ideas?