I'm on the fence about the A12t as well, to the point where I've had it customized and checked into my cart on the 64 Audio site... I can't afford them but oh well
But I also remember @Deezel177 mentioning a prototype EE model that was basically a Zeus with more bass... And now there's this mystery IEM he's teasing us with. Darn this hobby.
Anyone been able to hear the prototypes of A/U12t & Tia Trio and compare with the EE prototypes? Or anything else coming up? Aghhh I can't wait until CanJam NYC it's too far away! (I'm IEM-less at the moment... ordered the iBasso IT01 to hold me over until I make a decision)
EDIT: Also curious about FIBAE 3
Hopefully the two latest 64Audio demos will be available by the time I visit MS in a week-and-a-half; I too am intrigued by the A12t. The Proto-X is a really unique IEM, but based on its perforated design, you might want to look elsewhere if you're heavy on isolation. If you're not, then keep waiting, bud.

Man, I really don't understand what you want from me; you tease me for teasing future reviews and then you mention the FIBAE 3?!
.
.
.
*takes a sip of hot cocoa* Ahh... I can't wait for Christmas.