So one of my KT88's in my Cary went Nova today. So while I am waiting (semi-patiently) for a new set to arrive I have drafted my venerable Denon AVR-5800 into 2 channel use. 200 watts (at 2 channel) or pure direct power. The HD800's sound alright with it. The Vandersteen 2Ce Signature II's love the huge 200 Watts push.
It is a beast...Great sound though. I love tubes better, but they do wear out over time.