HD800 takes it IMO. Dynamic drivers just attack better. The orthos don't move air the same way the HD800 does. I've tried this with HE-5LE (better than 500 in some ways), 500, and LCD-2. I will reiterate that it is not wise to sell HE-500's to buy HD800. These are both headphones you need to have side by side to really lock down how they sound and what makes them different.