I own HD800, beyer T1, LCD2v2, and of course the crazy HD600. I also audit the LCD3, grado p1000, g1000, pretty virgin LCD4 during Nov show. After around of buy and sell, I decided that HP is not for me. I just can't find one that play all sorts of music, high is clear and sweet, mid is right, bass have body, could portray ambient correctly. Lolz, people said I ask for too much, as I come from speaker base hifi.
Till I heard the HEK with Dave. My passion for HP comes back again. I am not saying HEK is without fault. I hope that the mid could be thicker, bass more body, the rest I am more than happy. If you think you want characteristic of HD800, LCD2, and T1, I believe HEK could be the one. And Dave drive HEK without problem at all. HEK could extract full potential of Dave is all I can say. For me I do consider pairing it with violectric 281 driving HEK in balance mode.
Bare in mid that my HEK only 8hr old and still running in stock setup. I strongly believe once I move to my main system its another story.