Guys... wait till You hear it without back covers... sounds pretty amazing to me
Needs little higher volume though...
Actually doesn`t need higher volume... had quiet recording playing.
And take it with grain of salt... I haven`t made comparison to ED9 yet, or any.
But it really does sound great without backplates.
Edit: Ok, I put plates back on... I hope I`m not hallucinating or something... but without backplates it really is better
Everything seems clearer and more natural. Like I told already - somekind of "hollowness" is lifted... everything sounds so effortless and... oh... I can see open-back covers coming
Actually without backplates (through DX50+SU 1.3.3+cap mod) this is reminding me my best setup I have - modified Aune T1 + Siemens E88CC goldpin tube.
Ok, I`m going to stop and try again tomorrow with rested ears and mind... but if I reach to same conclusion tomorrow then I have found my budget IEM-bliss I was looking for