http://www.sony.de/electronics/kopfband-kopfhoerer/mdr-z7
The z7 has a 70mm aluminum coated diaphragm

Some dude on hf keeps saying "it's not the king, the king is coming later" which is some Sony flagship coming afterwards.


For iems, http://www.sonystyle.com.cn/products/headphone/xba_z5.htm
the xba-z5 has a 16mm aluminum coated diaphragm with a full range armature and a new magnesium coated armature as a tweeter. The armatures have been re-designed for lower distortion, it looks like. New cable, too. It's like a fully re-done xba-h3. The housing is smaller, too, which is great. As an iem person, I'm pretty interested, although hybrids seem to have fallen a little short of their promise. Maybe this will be the one that really shows us how good they can sound.

There's also a new Sony DAP, as well as a new iem hybrid with a smaller dynamic driver (which makes a lot of sense, given that the 16mm has led to pretty damn big housings).