Hstokar, I would highly recommend you consider Magnapan's MG -3.6s that are great speakers in general but really shine on classical, jazz, and big band music. If you could find a used pair of MG-20's, they rarely show up used for sale, it would also be a great speaker for you.
Best speakers for Classical music under 10k used
I currently have an upgraded pair of Thiel 2.3's that I have been happy with but am now ready to upgrade. I plan on listening to the Thiel 7.2 and the Wilson Sophias. I was wondering what others I should seach out? For 'classical' music only - big orchestra to solo instrument