Thanks a lot for the pointer nicholars! Also being Senheisser a more widely available brand I may locate somewhere to try them!
consider the fidelio S2 (or S1) but I can vouch for the S2 hitting above it's price point. there is zero treble harshness, great bass and excellent clarity and speed.
The heir 4.ai has almost all that you want and is more refined than the S2 with more audible texture and fine details but lacks the bass impact you may want. in my experience, that is usually found in dynamic IEMs.
Thanks LCfiner! Maybe I could try them also, being Philips!