shielded vs unshielded XLR input jack - when should I use 1 over the other?

as above. The jacks will be used to connect a fully-differential/balanced preamp to an amp.

I searched the net but can't find the answer. Thank you.


2022-10-13 13_02_39-01 NEUTRIK Section XLR Connectors PG EN 202202-V23_opt.pdf.png
2022-10-13 13_02_58-01 NEUTRIK Section XLR Connectors PG EN 202202-V23_opt.pdf.png
 
If it's line level and relatively low impedance -- say 10k or below -- not likely the shielding will provide any benefit.

Also, the portion of the connector that is shielded is a pretty small region. My guess - likely it was a suggestion from the Sales Department that 'we could sell these better if we offered a shielded version.'