I currently play competitive fps games and use a Titanium HD with AD700's. I was curious to pick up a pair of Q701's as I've heard they are also very good directional, imaging, sound stage headphones. Would using the Titanium HD dac and getting a E9 for the amp power the Q701 effectively? Would the AD700 also be okay running through the E9? Is there a better setup in the same price range for what I'm trying to do?