Don't know the spendors sound so well, but the D200's are great amps, and paired with a good tube preamp, and I would lean in the more tubey sounding preamp, the match will be great.
I used the d200's with my mapletree preamp and the synergy was breathtaking, I came very close to pulling the trigger on a pair, but wanted to stick with a tube amp(s) .
I think you will be very happy. I had the pleasure of having the Modwright modded Sony cdplayer(full blown sig mod) in my system for about two weeks and was very impressed, I think the addition of tubes, especially in the source is very smart, at least for my ears!
Should be a nice combo, of course cables makes things a bit complicated, but if you have friends do what I do ...swap till you find what you like!
Enjoy they are great amps
mike