Ceramic Cartridges and RIAA Equalization

Ceramic Cartridges and RIAA Equalization, Plus: Sneak preview of Knowzy samples page

Knowzy View Member Profile	Apr 26 2009, 20:32 Post #1
Group: Members Posts: 128 Joined: 15-July 08 Member No.: 55856	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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Arnold B. Kruege... Arnold B. Krueger View Member Profile	Apr 28 2009, 11:29 Post #2
Group: Members Posts: 3212 Joined: 29-October 08 From: USA, 48236 Member No.: 61311	QUOTE (Knowzy @ Apr 26 2009, 15:32) 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? Ceramic cartrdiges are usually specified to work best with a specfic loading, which in some cases may include non-trivial RC networks. The easy part of making a cartridge that has a mechanical RIAA deemphasis curve seems to be the overall -6 dB/octave slope. The turnover or flat spot between roughly 500 and 2100 Hz is more difficult to create mechanically.

Posts in this topic

Knowzy Ceramic Cartridges and RIAA Equalization Apr 26 2009, 20:32

Arnold B. Krueger QUOTE (Knowzy @ Apr 26 2009, 15:32) The u... Apr 28 2009, 11:29

cliveb QUOTE (Knowzy @ Apr 26 2009, 20:32) In pa... Apr 28 2009, 14:35

Knowzy Thanks for the excellent responses. I get that ea... Apr 30 2009, 19:20

Arnold B. Krueger QUOTE (Knowzy @ Apr 30 2009, 14:20) Thank... Apr 30 2009, 21:38

Knowzy QUOTE (Arnold B. Krueger @ Apr 30 2009, 13... May 1 2009, 06:06

cliveb QUOTE (Knowzy @ May 1 2009, 06:06) I... May 1 2009, 09:40

Arnold B. Krueger QUOTE (Knowzy @ May 1 2009, 01:06) QUOTE ... May 1 2009, 11:57

Axon Without resorting to calculus... think of the diff... May 1 2009, 08:20

2Bdecided I'd put "Don't use a ceramic cartridg... May 1 2009, 12:27

Knowzy Thanks everyone helping me make sense of this. I t... May 2 2009, 03:38

Arnold B. Krueger QUOTE (Knowzy @ May 1 2009, 22:38) Thanks... May 2 2009, 11:19

Knowzy QUOTE (Arnold B. Krueger @ May 2 2009, 03... May 2 2009, 19:03

Arnold B. Krueger QUOTE (Knowzy @ May 2 2009, 14:03) Here i... May 3 2009, 11:50

Knowzy QUOTE (Arnold B. Krueger @ May 3 2009, 03... May 3 2009, 22:31

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