Bio-film Investigation Part2:
OK, got another 2x EP05 from same seller. One set sounds exactly the same as the first EP05, so I open it up which damage the voice-coil wires.
Other one sounds abit louder/wider spacefield/some shimmering/sibilants in the treble regions with same base bass body (lighter volume due stronger treble volume)= 'better' for more openess, I don't open this one till I found one sounds the same.
So the good sound 'bio-film' diapfragm seems to be their Beryllium dome with Clear PET surround drivers from their topline EP09!, no wonder it sounds fast/detail-resolution/metallic with the Cymbals/hi-hats/rides/crash sounds.
Heavyduty Soundtest for your speakers/headphones/media: if it doesn't sound clear/lifelike then your gears are not capable, no problems with EP05:
Pics EP05:

Different backplate holes, bigger holes from model JC10, the back of the Faceplaces have different paterns than the JC10.
Beryllium dome with clear PET surrounds drivers.




Thats for now.