Electro Harmonix Knockout Attack Equalizer

The Knockout is a powerful two-filter combination that can make your Les
Paul sound like a Strat and your Strat sound like a Tele. Its
secret…the Knockout has a 7 pole filter for sculpting the low end of
your mids and a 6 pole filter to shape the top end of the mids. This
provides incredible tone shaping. Use after distortion to bring out the
heavy weight punch of the metal masters. The Knockout is also truly
amazing on Bass.

Original FSB thread and schematic available here.



… and a layout with added Input & Output caps. (Will remove the one above later)

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