just my experience with the ortofon OM series

Posted by Penguin (A) on June 18, 2012 at 19:52:24

In Reply to: RE: Thank you! posted by dconsmack on June 18, 2012 at 19:07:20:

best thing is to put the capacitive loading right on the 47K resistor of the preamp. if you want to get the value just right have it loaded approximately with ceramic caps in parallel with the 47K resistor and add a 100pf trim capacitor. Using a recording that you know well, you can inch up the trim cap. It is almost like adjusting vta, you will know when you got it right, things will be lean and distant when there is not enough load, and suddenly dull and closed up when you overcompensate...between the two the sound will be balanced and natural. The ortofon moving iron cartridges were the most capacitive load sensitive things i ever used...a long time ago i had a VMS 20 and also a VMS 30 and they both had to be precisely loaded. a little change in capacitive load changed the whole sound.

good luck
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Follow Ups Full Thread

Topic - Question about capacitance loading...eq-ing the sound of your cartridge? How does this work? - Mr Blue Sky 15:01:59 06/18/12 (20)

I suspect adding capacitance won't help - rebop 03:56:07 06/21/12 (2)

RE: I suspect adding capacitance won't help - Mr Blue Sky 16:40:12 06/21/12 (1)

RE: I suspect adding capacitance won't help - rebop 07:01:15 06/22/12 (0)

RE: Question about capacitance loading...eq-ing the sound of your cartridge? How does this work? - neobop 17:59:42 06/20/12 (0)

RE: Question about capacitance loading...eq-ing the sound of your cartridge? How does this work? - Bromo33333 13:25:53 06/20/12 (0)

RE: Question about capacitance loading...eq-ing the sound of your cartridge? How does this work? - dconsmack 16:24:33 06/18/12 (6)

Thank you! - Mr Blue Sky 17:07:05 06/18/12 (5)

RE: Thank you! - dconsmack 17:12:02 06/18/12 (4)

RE: Thank you! - Mr Blue Sky 17:26:41 06/18/12 (3)

RE: Thank you! - John Elison 01:20:04 06/20/12 (0)

RE: Thank you! - dconsmack 19:07:20 06/18/12 (1)

just my experience with the ortofon OM series - Penguin 06/18/1219:52:24 06/18/12 (0)

Don't forget the capacitace of the ICs between turntable and phono preamp. /nt\ - Opus 104 16:05:55 06/18/12 (1)

Good point. - Mr Blue Sky 17:01:36 06/18/12 (0)

You seem to have all the answers - Mystman 15:16:44 06/18/12 (5)

"Mystman" troll = hifitommy? - Mr Blue Sky 14:15:10 07/1/12 (1)

RE: "Mystman" troll = hifitommy?---NOPE - hifitommy 12:05:02 05/5/16 (0)

RE: You seem to have all the answers - Mr Blue Sky 15:51:29 06/18/12 (2)

He didn't register, ignore him - richardl 13:23:47 06/20/12 (1)

Thx for the tip! - Mr Blue Sky 17:40:06 06/20/12 (0)

Follow Ups

just my experience with the ortofon OM series - Penguin 06/18/1219:52:24 06/18/12 (0)

just my experience with the ortofon OM series

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