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Ceramic Cartridges and RIAA Equalization, Plus: Sneak preview of Knowzy samples page
Knowzy
post Apr 26 2009, 20:32
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The upcoming page* showcasing the USB turntables samples I've been posting put a renewed focus on ceramic cartridges. This caused me to update the case against ceramic carts in the turntable guide.

I added a new section on RIAA equalization and would appreciate a review for technically accuracy. In particular, I would like you to pick apart this declaration:

QUOTE (USB Turntable Guide)
Ceramic cartridges don't require a pre-amplifier yet still approximate the RIAA curve. You might say that ceramic cartridges equalize the audio signal organically: They rely on their chemical composition to implement the RIAA curve.


Am I over simplifying? Are there capacitors or other components down the line that also affect the equalization of the signal or is it truly all in the cart itself?

As always, I appreciate your insights.

-Jeff

* Sneak preview. This is the only link on the Internet leading to that page.
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Axon
post May 1 2009, 08:20
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Without resorting to calculus... think of the difference between a ruler and a speedometer. Ceramic carts are rulers, magnetic carts are speedometers.

A consequence of the math involved is that the "rulers" are less sensitive to high frequencies than the "speedometers". Ergo, 6db/octave drop.
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