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Stereo Cart to Mono Pre Amp
Stereo Cart to Mono Pre Amp
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Old 24th March 2007, 05:12 PM   #1
vasu is offline vasu  Finland
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Join Date: Feb 2006
Location: Tampere
Default Stereo Cart to Mono Pre Amp

My project: MC preamp only one channel (mono) , Moving Coil Input Transformer, tube preamp and passive riaa.
My cartridge is Audio-Technica AT-09 stereo MC. Phono cables together or what? Input impedance should be 1/2 ?
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Old 3rd April 2007, 11:11 AM   #2
AndrewT is offline AndrewT  Scotland
Join Date: Jul 2004
Location: Scottish Borders
I would try paralleling the cartridge pins and then feeding into half to full impedance value.

You may find that the impedance needs altering from the recommended anyway.
regards Andrew T.
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Old 3rd April 2007, 11:58 AM   #3
EC8010 is offline EC8010  United Kingdom
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I paralleled the cartridge outputs and used 24k for my mono record player. It seems fine.
The loudspeaker: The only commercial Hi-Fi item where a disproportionate part of the budget isn't spent on the box. And the one where it would make a difference...
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