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RE: Balanced phono cartridge

Posted by John Elison (A) on September 28, 2015 at 21:52:01

In Reply to: Balanced phono cartridge posted by Tidycat1 on September 28, 2015 at 20:02:08:

I believe if you use a phono stage with balanced differential inputs and you use balanced cables from the cartridge, you will achieve the same result as having a fully balanced cartridge with centered tapped coils. I don't think it's necessary to have three wires from each cartridge coil because there would be no current flowing in the ground wire. For example, suppose you are using a low-output moving coil cartridge designed to be terminated with 100-ohms and your differential input had a 50-ohm resistor on each leg with one end of each resistor tied to ground, I believe that would work just as well as a fully balanced phono cartridge.

On the other hand, it might not make any difference if the input to your phono stage is unbalanced. My system is fully balanced from the output of the phono stage to the input of the power amplifier and it works just fine. I can't imagine how performance could be improved with a balanced input on my phono stage. What do you think would be the advantage of a balanced input to the phono stage?

Best regards,
John Elison

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