Build Quality:
The build of the Ei.3 is also something I won’t be able to get into in too much detail. However, I can offer some insight here. Upon inspection, there are no bubbles to be seen on the shell. There are, however, a few smears on the inside of the shell that I’m guessing to be some sort of glue. I assume that the actual custom Ei.3 with be near flawless as there is a lot more space to put the drivers in. In addition, Piotr products have generally been beautiful to look at and very well built. Piotr also notes that he has since improved his skills at crafting acrylic IEMs, so it only gets better from here on.
I would also like to note that Piotr makes some fantastically comfortable IEMs. I’ve bugged Piotr before about considering making universals, but it seems that there are a few road blocks preventing that. Oh well… a man can dream though.