Just to chime in about the mg7, i don't experience any driver flex with them, if i had to scale the driver flex between non vented dynamic drivers i own/owned, the xears td III would have some serious driver flex, like when the right earpiece gets inserted, sounds like a sheet of paper is being ripped, doesn't effect the sound in any negative way but the flex is definitely there, monster coppers has some mild flex, instead of paper being ripped, it sounds more like paper being crumpled, the atrios, none whatsoever for me.
There are no filters that i can see, none like the westones/phonak/triple fi 10 i handled, the atrios have a really long narrow stem so its even hard for me to see if they have one deep down, they also dont have any mesh at the top like the monster, xears and most other dynamic phones
durability is great so far, given that i had them since christmas, however, i did used to own the older version 2 atrios before, and the new ones do have a better cable, it feels stronger and better quality rubber, has a nicer touch to the hand, other than that, everything thing else seems completely the same, same plastic, design, strain relief, etc.
I use sony mp3 player ( some cheap one i got last year ) with them, the atrio does need more juice to power when compared to westone 2, monster coppers, triple fi, prolly like one or two more clicks on my volume settings
