This is my third H6 - the first, in brown color, was reviewed prior to my having a measurement tool and was traded off. The second, the special edition in agave green, was reviewed at the beginning of my measurement experience and was traded off. This third H6, in black, got a good measurement shakedown this time and I expect to keep it permanently.
http://www.hifiheadphones.co.uk/forum/showthread.php?t=4241
http://www.hifiheadphones.co.uk/forum/showthread.php?t=4241
