Cartridge recommendation for classical listening


I have a wonderful sounding Grado Reference Sonata cartridge which I love.  The only problem is, for many years, I have had a hum problem which I have investigated extensively but never found a solution for.  I know Grados can have this defect, and the extensively modified Rega P3 turntable I use can contribute to the problem
So,  I’m ready to give up and go with another brand of cartridge.
I listen almost exclusively to Classical music.  Can anyone suggest a cartridge under $1000 that sounds good for classical?
128x128rvpiano
Dear @rvpiano : Due that you really like that Grado cartridge what you have to do is to follow the atmasphere advise . Read again his post and the advise coming from he I know will works and you will be really satisfied with.

R.
I’d try the Hana line of cartridges, very sophisticated sound and excellent tracking ability. An economic and excellent solution would be the audio technica AT-F7 with a step up transformer.
I too would nominate the Hana. Try the Hana SH. The sound is faithful to its name Hana, gorgeous. Needless to say, the Shibata tip is better than the elliptical (EH) when it comes to tracking and detail extraction, which are essential to good classical music playback. 
A Hana LS (low-output Shibata) with a SUT would indeed be a formidable combination! 
Hana sounds good but it ’s dynamics are too low for symphonic music.
The Rega Exact 2 I use is a solid body and is made totally in England  by Rega and Rega alone .Very high  quality.