The Conti is not my first choice for IEM's, but it's definitely listenable with my UE11's. You do have to be prepared to work at the very low end of the volume pot, but I am pleasantly suprised that the pot is easy to operate at this low end and there is little to no channel imbalance.
If IEM's are your primary headphones and this is going to be your only portable amp, I wouldn't consider the Continental ideal. However, if you are traveling and want to use your IEM's while on the move and then have your Conti to drive some full sized cans when you get where you are going, it's caable.
I'll have to give the D7000's a try and see if they indeed sound off, I haven't tried that combination yet.