Look up your cartridge data, here: https://www.vinylengine.com/cartridge_database.php, Your tonearm’s specs, here: https://www.vinylengine.com/tonearm_database.php?make=Grace&mdl=707&sort=2&ascdesc=ASC&search=search&eflo=&efhi=&mdlo=&mdhi=&ohlo=&ohhi=&amlo=&amhi=&cw= and get your answers, here: https://www.vinylengine.com/cartridge_resonance_evaluator.php Good website to save, for future reference.
Just picked up three new cartridges to play on a KD 500 with Grace 707 with a Shure M75ED.
Empire 999 VE/X, Ortofon FF15XE, and an AT LS 400. My questions are any of these compatible with my tonearm regarding compliance?.Also will any have the potential to be better than the Shure? It is a PITA to mount and align catridges in the 707. I also have a Pioneer PL12D which I could play with. Thanks in advance.