Okk in India i found Atrio's at a small shop and i was so ultra stunned by the warmth/base/low level music that was the bomb.... But the trieal was done with a Pocket Amp on a 12V battery so i have no idea what the Atrio's sound without a AMP. "I dont want to use an P.AMP broke 2 already and i hate the added cells"
My old gold king was ER6i's which was wonderfull in my view... that is before i heard the Atrio's!!! THE BASS IN Atrio's IS TIGHTER,CLEARER,SHAPED and WELL PACED as compared to UE SUPER 5 E.Bass or ER6i.
This is what i use:-
Mostly Zen stone plus
For real listening SONY NW A806
IEM's i own:-
V-moda Bass Freq 'Mostly Used'
Bose IEM 'Very bad buy for me they slip out every now and ten no isolation no real bass line and had to get the thin wire repaired twice'
Sony EX85's 'One of my smarter buys but it lacks the bass factor thats why i mainly use the V-moda's'
Now as it stands i use the ZEN Stone plus most of all its small and it sounds as good as compared to my old IPOD VIDEO. But can it or even SONY NW A806 drive the Atrio M8/ Etymotic ER6i to their max OUTPUT!!!
Also i was thinking as the Impedance of ER6i is half of M8's they should be louder without an AMP?? rite