LDR volume controls....what's the latest buzz?

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Marbles

LDR volume controls....what's the latest buzz?
« on: 17 Oct 2011, 12:34 pm »
A year or two ago the LDR type volume control looked like it might take off and be the next greatest thing.  I haven't heard much about them for a long time.

Can anyone tell me the good and the bad with them?

Thanks

pardales

Re: LDR volume controls....what's the latest buzz?
« Reply #1 on: 17 Oct 2011, 01:03 pm »
Here is one thread to help begin describe the latest buzz:

http://www.audiocircle.com/index.php?topic=97379.0

Paul Hynes

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Re: LDR volume controls....what's the latest buzz?
« Reply #2 on: 17 Oct 2011, 01:08 pm »
Hi Marbles,

My system target is to generate a convincing illusion of a live performance from the music I listen to, given suitably well-recorded music of course. So far LDR volume control has given me the best illusion of a live performance of all the volume control methods I have tried.  This includes transformer volume control and even a bulk foil resistor ladder attenuator built on solid silver switches with Teflon wafer boards.

I hear no downsides musically and I have been using them for years in the simple L-pad arrangement with a fixed series resistor and a shunt LDR. I have also been using George Stantscheff’s Lightspeed volume control configuration with both series and shunt LDRs for several years and I developed an infra-red remote control system for use with the these LDR volume controllers.

The only real down side is matching LDRs for consistent control. This is a pain in the **** as they have such wide resistance tolerances.

Regards
Paul


Marbles

Re: LDR volume controls....what's the latest buzz?
« Reply #3 on: 17 Oct 2011, 01:14 pm »
Thanks Pardales, that looks like a great thread.

Thanks Paul, that's great info.