This is my first post.

ClieOS, Great works!!  You are very lucky to have all that IEMs Ihope you can review some more IEMs. My recommendation is Nuforce NE-7m, which to my ears, it is cery good, from low bass to high with no harsh sibilance detected.  But it will perfect if it has some more warmness and bigger soundstage. But it's performance is very good for  price  USD49 + USD11 (delivery) (Amazon).

I am not an audiophile anymore ,  but good  sound is always GOOD. I think today's IEMs can produce a very good sound quality (SQ) and comparable to high end headphones.

My current listening setup:
Laptop  (Any audio format) -USB-> Nuforce Icon Mobile USB-DAC --> Nuforce NE-7m IEM (standard medium sized silicone tip).

TQ.