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The Filter from Pittsburgh Modular is a classic voltage-controlled, analog, state-variable filter. The module offers a smooth and natural sound with several modes of operation, each with a unique sound and energy. The filter offers multiple responses simultaneously including low-pass, high-pass, band-pass, and variable, which shifts between low-pass, notch, and high-pass.
The variable topology was chosen as it offers something new and musically engaging at any turn of a knob or flip of a switch. The filter provides a warm, organic sweep through the full frequency range. The low-pass is gummy and relaxed, while the high-pass is clean and defined. Switching to oscillator mode (OSC) results in a howling beast of chunky distortion. The Filter module is 12hp wide, 1.4" / 35.0mm deep, and requires 31mA of power. The module ships with a ribbon cable.
Q Pot: Adjusts the resonance (Q) of the filter
FREQ Pot: Adjusts the frequency of the filter
L-H Pot: Sweeps between low-pass, notch, and high-pass filters
QCV Pot and Jack: Resonance (Q) control voltage input and attenuverter
FCV Pot and Jack: Frequency control voltage input and attenuverter
1-Q Switch: Switch between Gain of 1 (VCA Mode) and Gain of Q (Standard Mode)
F-O Switch: Switch between Filter and Oscillator Modes
LOW Jack: Low-pass Output
L-H Jack: Output based off of the L-H Pot
HI Jack: High-pass Output
In the Box
Pittsburgh Filter - Classic Multi-Mode Analog Filter - Eurorack Module
Limited 1-Year Warranty
Table of Contents
Frequency control knob
Resonance control knob
Frequency CV control knob
Resonance CV control knob
Variable filter-control knob
Frequency CV In: 1/8" / 3.5 mm
Resonance CV In: 1/8" / 3.5 mm
In: 1/8" / 3.5 mm
Low-pass Filter Out: 1/8" / 3.5 mm
Variable Filter Out: 1/8" / 3.5 mm
High-Pass Filter Out: 1/8" / 3.5 mm
Band-Pass Filter Out: 1/8" / 3.5 mm