Using the same dynamic driver technology as the K702 65th Anniversary Edition, these open-back headphones have been tweaked to deliver an extended frequency response and a wide, locationally specific soundstage that puts you closer to the source than most cans.  The highs were boosted by an innovative flat-wire voice coil, the mids were brought up to better balance the range, and the lows were jacked up by 3 dB for fully immersive sound imaging.  To make sure that the channels are synced up and balanced, each transducer is individually tested and paired to a transducer with the closest possible sound signature.  To see just how well the channels match, look at the below graph featuring an overlay of each driver's frequency response.