I must congratulate all the respondants, and especially Mike above, for a well-focused review.
It's been a while since I have listened to the Avalons, but I found little fault with them other than a polite representation of the lowest two octaves. Spectral and similar high-current amps are recommended to bring out their best, which should not disuade you as long as you have plans to change (not really upgrade) your electronics -as long as you do that you will not look back.
The only speaker I have heard anyone trading up to from Avalons were Rockports (the Antares, at $40K). If the latter is in your price range, and you need contact info for Andy Payor in Maine, let me know. This is a "final" step for many happy audiophiles who want to step off the continual upgrade path, and something I hope to pursue in the future. Andy is a true pioneer and one of the genuinely authentic artists we have in audio.
I have dreamed about Wilson's work for many moons, and the latest iteration of the Watt/Puppy 7 should be auditioned since David is probably coming into his prime in adding the magical characteristic of "naturalness" that [listeners whom I respect stated] the Sophias have in spades. I have not listened to the W/P 7 (I will at the HiFi show at the Hilton next month), but by initial accounts this appears to be an entirely different animal than the W/P 6. As for pricing, the W/P 7 will list for $24K (up from $20K), but the Sophias will remain at the $12-13K range.
Alas, I have not heard the Alons nor the Amatis.
I would also suggest listening to the Talon Khorus X ($16K) at a trustworthy dealer. I own the little brother of the Khorus, the Raven ($7K), and find the lack of any emphasis of the audio spectrum refreshing. The micro/macrodynamics are stunning, and bass reproduction (even at low volumes) amazing. Jazz and vocals sound real, and there is no compression even at high volumes so that you can approximate the levels of live performances without any consciousness of strain or fatigue (in my wife's words, "it doesn't sound loud, it sounds like music").
The current Khorus (X) is an entirely different creature than the one which initially garnered great reviews - the enclosures are much more solid, the finishes are beautiful (high W.A.F.), and it remains easy to drive (yes, tubes are not only allowed but sound great; I am saving for the Tenor amps). The only Achilles heel to this design is the patience to allow for proper break-in (now performed at least in part at the factory). I attribute this to the pair of custom 10" combo midrange/woofer cones which are positioned back-to-back (only the front cone is visible). These assemblies are massive but in combination with the crossover network allow pistonic motion at speeds and midrange quality equalling the best electrostats (I still own an old pair of Martin-Logan CLSes).
Any audition you make MUST be based on well broken-in speakers otherwise you will not hear the potential of this (or any other) design. Give the Talon designer Tierry Budge or Mike Farnsworth (their prez) a call at (801) 619-9000; I have found both of them to be honest and informative.
I wish you the best of luck in your plans. I am envious of your room; any system you choose will have the space to breathe which will allow you to hear them at their best.
Arooj
NYC