Hi,
A number of people who are more qualified than me have offered some excellent suggestions. Setup/compatability of the cartridge in particular. I too have experienced the noise problems you mention with classical music, even with my former excellent vinyl setup. Believe it or not, the biggest improvement I made in terms of noise reduction was getting a better phono preamp, in my case the phono stage of my VAC Avatar. It made a huge difference in reduction of noise compared w/ the phono stages of some mid-priced tube preamps I had before (CJ, Anthem, Counterpoint). Not that you have to go to tubes, but I suspect that a higher quality phono stage would make a significant improvement, assuming it is worth the $$ to you.
TLH
A number of people who are more qualified than me have offered some excellent suggestions. Setup/compatability of the cartridge in particular. I too have experienced the noise problems you mention with classical music, even with my former excellent vinyl setup. Believe it or not, the biggest improvement I made in terms of noise reduction was getting a better phono preamp, in my case the phono stage of my VAC Avatar. It made a huge difference in reduction of noise compared w/ the phono stages of some mid-priced tube preamps I had before (CJ, Anthem, Counterpoint). Not that you have to go to tubes, but I suspect that a higher quality phono stage would make a significant improvement, assuming it is worth the $$ to you.
TLH