Filter Modules

Pittsburgh Filter

The Filter is a voltage controlled, analog, state variable filter. The state variable topology was chosen because it allowed us to produce a very smooth and natural sounding filter, in addition to offering several other modes of operation, each with a unique sound and energy all their own.

Pittsburgh LPG

A new take on the lopass gate. Our intention was not to clone but to reengineer and expand on the original idea. Our module includes an amazing new self-oscillating resonance circuit and a quieter vactrol based VCA circuit with true unity gain. All the work we did on the filter and VCA come together with the lopass gate mode. The buttery warmth of the filter teams with the best attributes of the vactrol based VCA to create an impressive take on a classic.