Nah, I had my friend's HD800 for 2 weeks straight on the same DAC/Amp so I know exactly how the HD800 would sound. Plus, I still have a fixed reference point which is my HE500. So far, this HD800 is interestingly different. Anyway, I will try to get my friend's unit again and verify the variation, blindly of course.
Different in the bad way or good way?