need cartridge suggestion

Look for Dynavector KARAT series.
Excellent cartridges. Diamond cantilever!
17D2 mkII or something like this. 

I studied the heck out of MC, learned and selected signal strength and impedance along with a vintage SUT to continue to use my vintage tube MM phono input.

I would verify with Parasound befor buying, what is best signal strength and cartridge coil impedance for it's MC input.

You also have the option of using an external SUT and going into the Parasound's MM input if you find an MC not ideal for Parasound's MC input.

I love my first MC cartridge, I picked the Audio Technica AT33?PTG/2.

https://www.audio-technica.com/en-ca/cartridges/line-series/at33-series/at33ptg-2

seems recent price increase, now $900. on AT's site.

I bought mine on eBay, new $550 in usa, takes returns. this seller says last one

https://www.ebay.com/itm/Audio-Technica-AT33PTG2-Microlinear-Moving-Coil-Cartridge-Free-2-Day-Shippi...

New on eBay, from Japan, takes returns, $420.

https://www.ebay.com/itm/audio-technica-MC-stereo-cartridge-AT33PTG-2-Japan-NEW/203179345582?hash=it...

DV Karat is good, but 17D2 was superseded by 17D3 many years ago and now 17D3 is superseded by 17DX, which you can buy NOS with confidence. All three are fine cartridges at a reasonable price, except I guess the 17DX is bumped up in price.

I'd suggest the Ortofon Quintet Black, particularly since you almost only listen to classical music. It'll produce neutral detailed sound and falls within your budget. The Quintet Bronze (slightly less expensive) and Cadenza Red (a bit more expensive) probably won't match what you're looking for quite as much.

second recommendation on dyna's - they are excellent

shelter and benz too...

Checkout reviews of the Clearaudio Concept MC. 

The discontinued Audio Technics OC9 MkIII
I believe there are a few available from online dealers.
Exceptional value & excellent tracking with your Linn rig. Smooth midband for Quads.

Hana ML, $1200. There is a very thorough review here:

https://parttimeaudiophile.com/2020/05/31/hana-ml-phono-cartridge-review/

If you go $1500 for a cart you should consider ditching the Z and picking up the Stereophile product of the year first..