Pittsburgh Modular Lifeforms Binary Filter Eurorack

Pittsburgh Modular Lifeforms Binary Filter Eurorack State Variable Filter Module

A deeper exploration of the Pittsburgh Filter sound, the Binary Filter is a voltage controlled, analog, state variable filter based on the filter of the Lifeforms SV-1. 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.

There Is No Sweet Spot
The Filter defines the Jekyll and Hyde sound of Pittsburgh Modular. On the one hand, it offers a warm, organic sweep through the full frequency range. The lowpass filter is gummy and relaxed while the highpass is clean and defined. On the other hand, switching into unstable mode turns the Binary Filter into a howling beast capable of chunky walls of overdrive and noise. The goal was to produce a filter that does not have a single sweet spot. We worked to make every turn of a knob or flip of a switch offer something new and musically engaging.

Binary Filter Controls
Frequency Knob Adjusts the center frequency of the filter.
Resonance Knob Adjusts the resonance (Q) of the filter.
frequency CV Knob Frequency control voltage attenuverter.
Resonance CV Knob Resonance (Q) control voltage attenuverter.
Stable | Unstable Mode Switch Switch between stable and unstable modes.
Frequency CV In Jack CV input used to modulate the filter frequency.
Resonance CV In Jack CV input used to modulate the filter resonance.

Input Jack Audio signal input.
Lowpass Output Jack Lowpass filter response output.
Bandpass Output Jack Bandpass filter response output.
Highpass Output Jack Highpass filter response output.

Module Specifications
Panel size: 8hp
Depth: 24mm
Power Usage: +12v 22mA, -12v 22mA. Does not require +5v. Reversed power polarity protection.