Assuming "Ania Pro" is your cartridge, and that the recommendation is to load it at 100 ohms, and assuming "RP1" is a phono stage formerly set at 300 ohms input impedance and now set to 100 ohms input impedance, most likely it will make no significant difference. But because you made a change, you will be inclined to hear a difference. If a cartridge is suitably loaded at 100 ohms, it will work nearly exactly the same at 300 ohms. Manufacturers almost always state the recommended load impedance for a cartridge as a given number of ohms, or greater.
Resistive Loading RP-1 and Ania Pro
I just went back and reviewed the setting for my aforementioned pre & cart. Rega's web site says Ania Pro load impedance is 100 ohm. I looked at my dip switches on my RP1 and they were configured at 300 ohm. Besides having to turn the volume up what I perceived as abnormally high I thought it sounded fine. Getting ready to have a listen tonight but what should I expect to change?
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