Just a short review to add my experience of the HD 800.
There are times when I am simply startled at the aliveness of the music. There will be silence after a musical passage or between pieces, and when the music starts up again, it's like when someone walks into a room and you don't hear them and then they start talking to you.
The sound is so real, so natural so alive, for that moment it is as if the ensemble were next to me.
I did jetteson the stock cord and replaced it with a Cardas single ended for better results.
I am very happy I got them.