Hi all, I've been travelling (and away from HeadFi) for several weeks, but I'm back temporarily and I just saw this thread. I apologize but I haven't read all 13 pages yet. Just wanted to say that I actually discovered this company a few months ago, ordered the triple driver model (the quads were still in developement back then), and received it a few weeks ago. The company is excellent to deal with; top notch service and communication. The product itself is quite nice as well. I got translucent black with the carbon fiber insert, and it looks stunning. I'll post a few pics but I apologize because they are from another upcoming review so I didn't focus on these particular IEMs.
I'll be reviewing them in detail when I get time, but my initial impressions are very good. When they arrived I had been using the 6 driver Unique Melody Miracle exclusively for 2 weeks, so of course these triple driver 1964's were a bit of a downgrade. But they are still very solid performers in all aspects. The sound signature reminds me of the Kenwood KH-K1000 (which is one of my favorite headphones at any price): generous in the bass region, healthy lush mids, slightly cool and smooth top end. Sort of a "jack of all trades, master of none" type of sound.
A short while after receiving them, I took off on vacation, then got really sick. I ended up with an ear infection that caused my right eardrum to rupture. Long, sad story short: I'm completely deaf in my right ear for a while, so I can't listen to anything until it clears up. I'll post my UM Miracle review in the next few days, followed by a review of the Anedio D1 DAC, then finally the 1964T customs, but I need my hearing back before I can finish that. So it could be a while but I will let you know.
Now for the pics, again sorry for the quality: