Capacitance Question

Djn04 -- Load capacitance is usually not too critical, even for a mm, and often a moderate mismatch can be synergistic with the rest of the system.

The differences would be in the extreme upper treble. You may find this Hagerman Technology page to be of interest (although keep in mind that the calculators it provides are approximate, and are based on some simplifying but imprecise assumptions).

According to the cartridge database at vinylengine.com, your cartridge has an inductance of 420mH. Combining that with a load capacitance of 100pf in the Hagerman calculator results in a resonant peak at 24.6kHz, outside of the audible spectrum. Combining it with a load capacitance of 177pf moves the resonant peak to 18.5kHz. At 277pf the peak moves to 14.8kHz.

I don't know about you, but I doubt that I can hear any of those frequencies to the point where I would be able to tell the difference. :)

Best regards,
-- Al

Hi Dan,

Actually that's not correct. They're in parallel, not in series, so they simply add together.

Cable capacitance is "in shunt" between the signal conductor and the shield or other return conductor, and the phono stage input capacitance is across/between/in shunt with the signal and return connections on the input jack.

Best regards,
-- Al