I received my mini yesterday. With my JH11 I can only hear hiss at full volume with no music playing. It seems to be the same not matter the gain level. The volume has to be all the way up. I will never listen to an IEM that high anyway.
On another note, I can't seem to get the thing to fire up over USB. Windows tells me the device won't start (code 10). I've tried re-installing but no luck. Any ideas?