The Bifrost is a dac :P
I think I like the tonality of my CTH better than the V200 even though I have no hesitation in saying the V200 is the better amp. The warmth of the HD650 and V200 makes it not as ideal for certain songs but the CTH is brighter making it a better for all songs as the HD650 does sound boring sometimes with the V200. It may be time for me to finally acquire a collection of tubes for this amp..
It's kinda amusing that as I got ready to buy an HD800 in the FS none are being sold now so the HD650 will be here for a while.