I had discussed this with Bob Clarke, the distributor for Transfiguration before they stopped production and he felt that the Transfiguration carts were smooth enough on top that the loading became more of a tone control. The preamp we were discussing had loading from 100 to 470 and he said he even ran his at 47k. He initially suggested the 470 setting, but said it would work fine at 100. Just go with your sonic preference. We didn’t discuss any values below 100. Disclaimer- we were specifically discussing the Orpheus, which is low impedance, although not as low as yours.
Transfiguration Phoenix S cartridge - impedance loading recommendation?
This cartridge has a low internal impedance of 1-2 Ohms, and the manufacturer recommends an impedance loading of >7 Ohms.
My phono stage (Accuphase AD 2900) has MC impedance settings of 10, 30, 100, and 300 Ohms.
I have tried it at 10, 30, and 100 Ohms and they all sound ok. I am running it at 10 Ohms for now.
What settings have you found to be best?