I recently got a pair and love them. I am very sensitive to brightness and upper-midrange shout,
and find that the 800s walk that fine line between buoyancy and abuse. The bass is fairly well defined and integrated with the rest of the sound,
and soundstaging and spaciousness are good too, without unnatural affects in this area. Vocals
are not edgy or grainy, either. I read reports that the 800s were shrill or tipped-up, and I avoided them for some time, but curiosity took hold and I bought them finally, and I am really happy. I am a former HD650 fan, and the family resemblance is there, but there is a much more open listening experience, with no stress, where I just want to listen to an entire disc (and stay up too late listening). I use a Ray Samuels B52 amp, and the nice tubeyness is a great match for the 800s.