With the exception of the somewhat misunderstood/rare HD630VB, this plugs a hole in the Sennheiser range that's been missing - a no-compromises, audiophile full-sized close-back set of cans. I simply cannot wait to try these alongside my ZMF Eikons; and also alongside the HD800s to compare the similarities (and differences). One can assume soundstage/air may suffer slightly, and bass impact may increase due to reflections, but very keen to find out how Axle and team have managed to deal with reflections via dampening, as well as that cleverly contoured concave gorilla glass.
Oh, and they look amazing. They may have just stolen the "Darth Vader's cans" mantle from the Beyerdynamic DT1770!