questions on zyx airy 1000

Hello from France, i have a lenco l75 on a big plinth with high end bearing... OL conqueror mkII and levinson mlc-1 cartridge retipping by VDH)
I am thinking of buying a zyx airy 1000 as i have heard good thinks about it and it works well with my arm.I listen mainly classical music, lyric,choir...My main concern is with multi mics recording of the seventies.I have 38 boxes of the 45 of bach cantatas by Harnoncourt (telefunken),and i heard them with a stradivari cartridge on a high end system.On the soloists it was wonderfull but on the choral with people singing alone,together,then separatly...It was awfull ;it was far better at home (but not for the soloists). With the stradivari you can't follow the choral.
So my question is how the zyx is going to sound on chorals,and have you others ideas for a cartridge.