Thanks to Wes for the informative review of the Sennheiser HD800. Now if only I could afford them!
But the real interesting tidbit was Wes' tantalizing statement that the Boulder 865 integrated amp has a "super headphone driver stage." Wes, can you say any more about that? There's nothing out there that even mentions that the 865 has a headphone output (none of the reviews, not the Boulder website). And the photos leave me guessing where the jack is located (below the display?).
And most importantly, how did it stack up against the Headroom Max? I've got a Headroom Blockhead, but selling it might help finance the 865 with the Senn 800s... must stop these dangerous thoughts...