It's all according how you define classical..........if you mean Opera, and Symphony - then it's properly modded K340 which easily define various sections/intruments in complicated passaged (also the distant perspective of a large concert hall or opera house) - IOW a no-mush zone

No-one does these things better. Alternatively, I also like X-Deep Darths built with 600 ohm dt770 drivers......a Beyer T1
may lurk in my future - time will tell.
But, you may mean such as string quartets and various other small venue recordings where RS-1/flats can perform very nicely and provide that more intimate perspective.........for Oratorio you might wish to scrimp and save for a pair of Joe Grado HP1000,
You want to think precisely about what deserves most of your listening time. Clearly, I tend to disagree with much that has appeared here.........but then it is likely I'm the only one classically trained/experienced.
Similarly, the same distinctions apply to speakers eg. less impactfull (dynamic) music will be presented beautifully by Magnepans and such, whereas I never heard Segovia better than my ancient Vandersteen 2C - but neither fairs that well with a "rambunctious" Symphony. Unfortunately the larger speakers I had on trial for Symphonic works seemed (physically) too large for the room where they would be located

(this was back in latter '70's and everything Vinyl for me).