About handling (too long / too short cable, no cable winder, fit the headphones, noise transmission via cable, etc.) have already written enough other. But over the sound I've found too little details. Therefore, here is my personal experience: I have the headphones repeatedly exchanged with another in minute intervals (KOSS The Plug (old and new), Sony MDR - EX76LP and others). The more I compared, the more enthusiastic I became. Has been tested with modern music (rock) as well as classical music.
Sound: + Super bass, but still not bassy, never cover the mids / highs + Mids and highs also super, no clanging, no frequency too high / too low
+ Sounds as if you were sitting right in the studio or in the orchestra. All other headphones saw next made totally weak ...
Handling: + Sitting well in the ear - Transmission of sound through the cable (but would be better with an in-ear headphones for 80 or 200 ...?)