Pittsburgh Modular - Filter


The Filter by Pittsburgh Modular is a multimode filter with state variable topology which gives a smooth natural and warm sound. The filter doesn't have a sweet spot but sounds good over the whole frequency range. A special oscillator mode allows the filter to be used as an oscillator as well.



State Variable multimode filter with four simultaneous filter characteristics: lowpass, bandpass, highpass and notch. The latter can be blended from lowpass over notch to high pass with the L-H control. The cutoff frequency and the resonance (or: Q) have according controls and CV inputs with attenuators.

Two switches expand the filter with very special functions. The upper switch controls the gain mode: in the "Q" setting the resonance works as usual but in "1" setting the resonance turns into a VCA! The lower switch selects the mode: in "F" position the filter won´t self-oscillate, in "Q" position though it will produce a stable sine wave and act as an oscillator and the resonance becomes a waveshaper! At extreme Q settings the input signal will be distorted, from warm fuzz to heavy distortions.


Audio: 1x input, each one output for lowpass (LP), blendable notch (L-H), high pass (HP) and band pass (BP).

CV inputs for cutoff (FCV) and resonance (QCV)


3U Eurorack module, 12HP wide, 35mm deep
power consumption: 31mA

0.178 kg
Article Number
External Videos

This item is discontinued or sold out and no longer available, please feel free to look for comparable new stuff in the following categories.