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Old 22nd October 2011, 04:45 PM   #1
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Lightbulb Math expression for parametric EQ project

Hi all,

I would like to build a clone of UREI 545 or 546 parametric EQ but with another bands. Therefore I looking for math expressions to modify the Q, and the frequencies. Maybe I can get help here.Thanks
Leslie
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Old 23rd October 2011, 10:36 AM   #2
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Maybe the schematic help:
Urei 545 Parametric Equalizer Schematic

546 not exactly same:
http://www.jblproservice.com/pdf/Vin...s/UREI-546.pdf

I would like to build 6-10 band parametric EQ instead of 4 band like original UREI.
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