Summary: I love these headphones, and for 80$ on Amazon I don't see why someone wouldn't want these. They are great sounding, and the folding design is great. They fit very tight, so it can become a bit uncomfortable at times. But the great design (and look) of these definatly make up for this!
Summary: K518 is no doubt a legend - killer sound and decent isolation for a portable cans, together with the most badass clamping force ever.
K67 is one full class above in sound, and maybe two in comfort. Funny though, the K618/619 siblings exerts a MUCH stronger clamping force on the skull than the K67, despite the seemingly similar design.
Bass: As deep as you can hear, and as deep as you can feel as well.
Pros: VERY deep bass, much improved comfort over K518, clear sparkly but not harsh highs, lush and moderately detailed mids with good definition
Cons: Still a bit uncomfortable for the long haul, Soundstage compressed at times
Summary: Son unos cascos con una buena calidad precio. Insonorizan mucho del ruido exterior y se escuchan geniales. Vienen con dos conectores Jack, uno grande (mesas de mezcla) y otro pequeño (para iPhone, móviles, MP3 o una salida de audio como la que puede tener una tele o un PC).