IEMusic
Headphoneus Supremus
Wow, interesting differences in the frequency response curves between the UIEM and CIEM.
https://crinacle.com/2020/09/09/unique-melody-mest-custom-unboxing/
https://crinacle.com/2020/09/09/unique-melody-mest-custom-unboxing/
Maybe the CIEM would be perfect for you.This is concerning, seeing as I have really small and shallow ears, and I am far from a treble head.