Have these popped up anywhere yet?

Trying to gauge what these might sound like.  I understand that these are open, so apples and oranges.  But how do they compare to A900x?  

I have a huge monster head, and my only requirement is that the clamp isn't bad and I have room for the top of my head are these headphones for me?

I have had the JVC FX850s for about 3 weeks now and I have been really enjoying them.  Out of curiosity what other IEMS with a similar price range sound just as good compliment these?

Hello,   Maybe you guys can help.  I am a competitive FPS gamer and I am looking for a pair of gaming headphones or headset.  My main issue is that I have an enormous head and very few headphones fit comfortably, especially for extended gaming sessions.      My requirements are...