Just went back from audition.
Tested with foam tips and no EQ at all.
Volume and song can see my pic as below.
The sounds quality is great, especially "Bass" impactful & solid bass > better than my Martian & AK 3+1.
Mids pretty good, can't expected that good, can hear very clear vocals.
Treble was bad with stock cable, totally not bright at all, seem very flat, no having fun too, if I can live with stock cable.
Once swap to SXC24 treble were alive, can easily bring up song more having fun & pretty recent like a expensive IEM out there.
My conclusion still prefering with EQs to bring up more recent to me, cause I can't live without "Treble" is flat to me.
Shells is better design, unexpected that fits is awesome, totally solved an issue like rotation with mmcx cable together.
If you ask me? Sure i will buy.
Rating for this it03 : 4.5/5 (-0.5 due to cable)