Been a while listening back to IEM...
just a HMMM exp pairing with DX300...
Tonality is warm sig overall, with mid bass puncy. Detail Rumble, Vocal recess, with treble consider roll off.
Technicality, Not a wide soundstage presentation, more on Height and Depth. No overlay, excellent separation, with Black background.
on Volume 36, mid Gain, Digital filter no.5, not easy to drive for IEM... to compare, SOLARIS OG, only Volume 7. My 320 Ohm Earbud, will be around 40 ish...
assuming I get the same loudness based on my own ear.
Again IMO...