Thanks for the tip on the Quarts. A few weeks ago I found one pair of the Quart 805s for $129 so I pulled the trigger. I must say they didn't impress out of the box but after a few hours they've relaxed significantly. Well worth the money and built like a tank. They're hard to find but are a good choice for <$200.
I'm using a modded Quickie driven by another preamp. I have the parts to make a White cathode follower 5687. Of course, Crack is the next BH step.
Alan Hiebert