Math expressions for parametric equalizer

[Leslie Perjes]

Hi, I would like to “clone” UREI545 and 546 based parametric equalizer for homemade project, but I would like to know math expressions to count out the parts of EQ module for any bands. Here is my blogpost about the idea:

 

http://custompcb.blogspot.com/2011/10/parametric-eq-project-modular-urei545.html

 

Please help if you know how to create custom bands with this method.

 

Thanks

Leslie

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