KRK Systems KNS 6400 Headphones @ techPowerUp
 

KRK Systems is well on their way to becoming a big name in the headphone business. Today we will be taking a look at yet another interesting set of closed back headphones, namely the KNS 6400s which feature the same mechanical design as the KNS 8400.

http://www.techpowerup.com/reviews/K...tems/KNS_6400/