PM Resonator

3 Channel Formant Filter

Grove Audio -
The PM Resonator is a recreation of the formant filter section of a Polymoog™ synthesizer in an 18HP modular panel for Eurorack (EU) format synths. 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 the three channels. The modes are low pass, band pass, band notch, and high pass.

http://www.groveaudio.com/synthstore/index.php?route=product/product&path=61_79&product_id=55