Well, I agree that I don’t think you buy a speaker for a genre of music, as a good speaker will play all well…..but….
Another vote for Vandersteen. I play a lot of classical both orchestral and quartets, and love the tone and timbre Vandersteen’s provide, especially with quartets….listening to a quartet as I type this.
I have Vandersteen Model 1’s, Model 2 Sigs, and now Treo. The Treo are a step above, especially for classical/quartets. I would highly recommend the Treo, Quatro or above.