CanJam at RMAF 2015: Pioneer SE Master 1 Flagship Headphones
I heard tell of these about 8 months ago, but evidently they've been available on the international market for a couple of years according to Rolf Hawkins, who was representing Pioneer at the show. He said Pioneer has been receiving good feedback on the headphones when they were shown in the USA at a few other shows, and now they've decided to make them available in the domestic market.
The SE Master 1 (~$2500) is a full-sized, around the ear, open design with the notable characteristic of using a ceramic aluminum composite driver central dome in the diaphragm.
Another unusual feature is a removable tensioning band to adjust the caliper pressure on the head. The headphone comes with two interchangeable tensioning bands. Some really interesting additional technical information is available on this page.
I had only a quick listen at the show and thought they were good enough to request a further sample for measurements and a focussed listening session. For more info you can check out this Head-Fi thread.