3 Channel Formant Filter

The PM Resonator is a recreation of the formant filter section of a Polymoog™ synthesizer in a standard 5U double-width modular panel. Each of the three filter channels has a control for frequency, signal gain, and emphasis or resonance.

A rotary switch selects the type of filter mode for each of the three channels. The modes are low pass, band pass, band notch, and high pass.


  • 25 mA +15V
  • 25 mA -15V
  • 0 mA 5V
  • 65 mm deep
  • Ø 4.25 (4 Votes) Average Rating

This Module is currently available.

$229 Price in €
2 HP Filter
submitted Oct 25th 2012, 21:18 by Squiggletronics | last Change Nov 5th 2019, 01:33 by JohnLRice