A friend dropped these for a listen. They came in a custom, tasteful and practical case with foam cut to the shape of the cans. Inside is a 1/4" adapter, a "Limited Warranty Statement" (3 year), and a letter which I did not dare open since I don't own these cans.
Looking into the Kennerton's website, there is a brief about the technology behind these phones (http://www.kennerton.com/magister.htm
). Basically a 42 mm mylar driver coated with titanium. The cup internals seem to be shaped to perform some sort of anechoic duties. They are made with >2040 year old bog oak wood. Cushions are made of lamb skin. In person they look legit. Indeed, some lambs and tree parts seemed to have ended up in these cans. The construction of these coconuts is top notch.
The cable is detachable and fat. Not very maneuverable, but definitively feels pretty sturdy. I would recommend a different mechanism to secure the detachable cable (to avoid it from getting loose).
Given construction, these are on the heavier side of things. But not bad. Most planars in general are heavier going by memory. One thing about these cans is that they are face hugging tight. That may or may not be a problem for some. There is ample ear space inside the coconuts.
Sound wise these are IMO pretty resolving in the bass area, but not that much in the mids to treble area relative to the HD600s. This may be an unfair comparison given the HD600 are open cans. Relative to other closed cans (say M50s or CAL!) these may be a little more resolving overall. I would say these are neither bass nor treble monsters and the mids are decent. Listening to Daft Punk "Get Lucky" for the hundredth time was not offensive. Bass indeed sounded detailed, but plankton might have been sacrificed (EDIT: in other frequency ranges and relative to reference level open cans).
Overall these are not bad sounding, but not necessarily spectacular. They are about $900, and IMO one is paying for the craftsmanship which seems impeccable. These also did not seem to require tons of power to drive.
Comparo with CAL!
Comparo with Ultrasone 880