I understand (I think) why the capacitance should be as low as possible for a moving coil cartridge plugged directly into an active gain stage. The OP said he has his cartridge plugged into a step up transformer and the SUT into the MM input on his phono stage. Is it the case that the phono still sees a moving coil cartridge and that the SUT is "invisible" so to speak?
PF SETTING FOR MC CARTRIDGE WITH SUT
I have a low output MC cartridge, My Sonic Lab Ultra with 0.6 ohm internal impedance. I am using a My Sonic Lab Stage 302 SUT which is connected directly to my MM Phono stage. Could someone explain what "PF" setting I should be using in my phonostage? The range in 50-750 in increments of 50. I had read that a good rule of thumb is to take the cartridge impedance and multiply by 10 which would be between 50 and 100 pf? The recommended impedance load for this cartridge run through a MC phono pre is 200 ohms. Look forward to any advice.