Loonytunz, thanks for your thoughts, which are very relevant (not meaning to exclude PBB and Artg in any way); your experience is exactly what I am seeking.
Just wondering, why not sell the 60 & 200 and get the 75se?
My impressions of the 500 have been very good. Lots of air, very palpable image, rock solid image in the middle of the speakers. A huge upgrade over my previous DNA-1, which I also loved. However, after listening my friend's tricked out Dynaco ST-70 in my system I was very impressed with the extra palpability. This was most noticable when I took his tubes out, and put my ss back. Sounded ... uh ... dang ... can't find the words ... well, ... not as real.
2 more VK-60's offered today .... hmmmm. Is 60w big enough?
Decisions, decisions...
Thanks