Best speakers for Classical music under 10k used

I am a fairly new owner (approx. 1 1/2 months) of a pair of Dynaudio Confidence C2's. These speakers, given top-notch gear driving them, will put out incredibly natural sound with very good soundstaging and depth. I'm currently driving them with Atma-sphere MA2 Mk2.3 OTL monoblocks (home auditioning, and considering purchasing these beauties with a big thanks to Siddh). The sound is achingly beautiful. The Dynaudios are another speaker with great detail retrieval and low-level resolution, yet with these OTL's, can play as loud as I would want them to. The C2's I picked up were a demo pair for $9.5k and they can most likely be had for less used.

FWIW My father minored in the pipe prgan in college and compossed music aswell, he listens to nothing but Classical and he loves his Legay Focus 20/20.

Have you tried adding a REL sub to the Thiels : - )))
Art

I've heard a lot of live small-scale and large-scale orchestral/classical music, and when I return home from a performance I often head straight to my rig for a comparison. I own Spendor Classics, and I'm always amazed at how close they sound to the real thing. Since Spendor has expanded their line, more dealers are carrying them, but note the different voicing/cabinetry/bass loading of the new S series. To my ears, the Classics are still the best. Check out this line if possible.

Depending on your room size and other components involved in your system, you should check out eletrostats and planars for your listening purposes. If you will be doing most of your listening from a seated position in a small to medium sized room the Quads would be a great choice.
If you want something with more adjustability, check out some of the Wisdom Audio speakers. I ran the M-50's for a few years and totally enjoyed the classical recordings (CD and DVD-A) that I have. The soundstage(width and depth)and the detail blew away my Dad who is an avid classical music listener and loves the "live" performances at the Hollywood Bowl. These speakers do need to be bi-amped but will allow for room abnormalites with the "active brain". I recently upgraded my speakers to the Rush and the clarity as well as the bass is unbelievable!
Good luck in your quest!