Kr4,
As I stated, mine are the big 800's, not the N800.
The benefit of actively biamping with quad wiring of the 800's is not a subtle improvement! The active biamping, with the Krell KBX, was the biggest single impovement that I have ever made to my system.
Know before thy speak. :)
Richard
PS> I know of one guy that had his 800's set up as I do. Before selling them he bought the N800S. He compared the two in his own home and sold the N800S.