Summary: So ill keep this short, and ill relate this to the norwegian market.
I have both Sennheiser HD650 & HD700, my experience with both is awesome, therefore I had huge expectations to these as in Norway the T70
is in the same price range as the Sennheisers. Even with High-end headphone amp I feel i miss something, I were running them at 250Ohm, and the clarity was
great though it sounded so "surgical".