GiullianSN
Headphoneus Supremus
That's actually a fair question and I am assuming you don't have anywhere near to try it yourself...Is the Code 23 really usable with IEMs as far as fit is concerned? Do the IEMs connected to it stay safely in the ears? May some models encounter problems in that respect?
Seldomly read something more concrete about the Code 23 ergonomics besides that it is heavy and stiff which it obviously is ... .
I am on the fence to buy my first EA but cannot decide between an Eros S with the upgrade 4.4 OFC plug, the Code 23 or even one of the 8w Ares or Cadmus...
From my personal experience (that may vary from others, I suggest having a look on @SteveK27 comprehensive review). If I already have fit problems with my IEM, Code23 will just make it more noticieable when moving around. But if I already have a good and secure fit, C23 won't make any difference on a relaxed use case. As I mentioned previously, I tend to use my C23 on the desk to avoid much movement around that may affect the fit.
Thinking out loud... a way to see this around you is to get a cable around your desk (USB maybe) that is stiffer than others and try to handle it around, you may see what we are saying about C23 being stiff and less malleable than other IEM cables and movements being more transferrable along the cable. (I had a good idea on how to show that, Will share a picture later )
On the other hand, its stiffness helps when adjusting it around the ear to your liking and comfort.