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.
http://www.groveaudio.com/beta/pmreso_mu.html
This Module is currently available.
$219