Stereo Parametric Equalizer


This project is based off of the Sontec MEP250A 5 band parametric EQ. I've provided all the resources needed to build one yourself below. I also sell fully hand built ones over at

Original Sontec MEP250A from Vintageking

I've adapted it to use Blore-Edwards PZ style 23 step rotary switches but other switches or regular pots could be used as well.

Blore Edwards Switch with resistors


I used the following references and resources when designing and tweaking this project:



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