Well for example if you switch from the XX2(2)(Itself a lovely cartridge) to the XV1 the difference is NOT subtle..
It's as if you switched on bigger and better speakers.
Bigger sound, massively expanded soundstage, smoother, fuller and still all the delecacy and detail of the XX2.2. XV1 is a beaut. Haven't heard the XV1s though!
Syst. XV1/507/Delphi/DM12/Anteres/DM58/Stratos/CLS2z