I have never liked how any of my JBL's reproduce classical music, especially strings. However, all of my JBL' s tend to be the older studio monitor series: L100, 4315, 4411, 4430. They sound as they were designed to sound...through the studio window as opposed to concert hall in your living room.
I am a great believer that speakers designed for home acoustics sound better in the home, so perhaps JBL's designed for home use fair better in this regard. For classical stringed instruments I find speakers that disperse sound in a more omni directional field provide a fuller sound stage flattering to this type of music.
For that reason I prefer my Castle Winchester's over my JBL's for symphonic works.
They do not at all produce rock, popular music or anything with a rhythm section nearly as well as the JBL's.
But, I find the the Castle Winchester's sound good on natural acoustic instruments.
Curious if other Classical listeners feel the same way and if you prefer other designs or makes of speakers.
The Castles are basically a 2way design with a third driver pointing directly upward. Low end is derived from a variation of folded horn style tuning referred to as 'quarter plank' and fires out of a fair size mouth at the bottom rear of the speaker. This speaker has excellent 35Hz response--a bit of a waste for Classical with the exception of pipe organ.