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Shelter 901: Optimal Impedance

Hello,

I'm a neophyte with MC cartridges. I've recently acquired a Shelter 901 MC cartridge and I'm a little confused about the correct impedance to use. The manual says 100 ohms, but vinylengine.com states that user reports suggested 470 ohms. Perhaps this is a typo and they mean 47K ohms?
Might someone be able to advise me.

Thanks,

Mike
mcole01
sarcher30
596 posts
 
The optimal impedance will be different in different systems.

It is best to determine what impedance sounds best to you in your system. Just try all the options on your phono stage and decide for yourself.

No damage will be done by experimenting with impedance on your phono stage.

Sean
mcole01 OP
2 posts
 
Thanks Sean. Am I correct that no capacitance should be used? It doesn't reference any setting in the instructions.
daverz
487 posts
 
Sarcher is right, it's system dependent.

I would just try all the available settings. I found that for my cart, the midrange popped into focus at a certain setting, and it was quite a bit higher than the value everyone else was using.

If you have to supply your own resistors, I'd try maybe 3 resistor values, like 1000, 500, 100 Ohms.

MC carts *shouldn't* be sensitive to capacitance, but you might want to try different capacitive loading anyway, or tonearm cables with lower capacitance.
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