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I agree with your preference John...

But I don't think that's a surprise to anyone who knows me.

I do have an engineering type question. Since the higher inductance of a traditional MM/MI cartridge combines with the capacitance and resistance of the phono preamp and forms a low pass filter, does this filter have effects on frequencies below the effective frequency of the filter?

Since this effective frequency using a traditional MM/MI cartridge is at the upper limit of human hearing, I am asking whether this low pass filter has any effects on harmonics of the effective frequency (in this case within the audible spectrum). My question comes from my limited understanding of tone controls in preamps.

Preamp designs started dropping tone controls from their designs due to the negative effects that those filters had on frequencies that were multiples of the effective frequency designed into the tone control. Since the MM/MI cartridge forms a low pass filter, I am thinking there isn't a free ride there either.

If my limited understanding is correct and the MM/MI cartridge forms a low pass filter around 20kHz and that filter has effects on multiples of that effective frequency then we have a negative side effect. Perhaps phase issues or other things we disposed of tone controls for...

Let me know if I am off base here John.

Thanks,
Ed


Life is analog...digital is just samples thereof

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