I noticed you have a Vacuum state dpa-300. Very interseting design. Would really like to here what it's like. Amps that I have used with my Avantgarde Trios are: Wavac md300, Yamamoto A-08s, Atma-sphere M60, Cary 805C, and my current Viva Aurora 845 monos are by far my favorite. Just recently I aquired a Mactone MA-300b. I noticed you have some of these same amps in your system, How does the Vacuum state compare. Nice system, I've never had a chance to hear any big Tannoys yet.