I find your question interesting in that I listen to classical music exclusively on a modest system. I too found the sound of violins too harsh.
I made two changes; I switched to a tube preamp using some great NOS tubes that rolled off the highs a bit, but still sound very open (RCA Blackplates). Strings were finally sounding very natural, and it was now easier to tell which cds were poor recordings.
I next got rid of the Audioquest Type 4 and switched to some Cardas spkr cables which sound more forgiving. The type 4 are very detailed and you might look for a more laid-back cable. It worked for my situation.
I made two changes; I switched to a tube preamp using some great NOS tubes that rolled off the highs a bit, but still sound very open (RCA Blackplates). Strings were finally sounding very natural, and it was now easier to tell which cds were poor recordings.
I next got rid of the Audioquest Type 4 and switched to some Cardas spkr cables which sound more forgiving. The type 4 are very detailed and you might look for a more laid-back cable. It worked for my situation.