pittsburgh-modular/crow-3

Crow 3

Pittsburgh Modular

Capabilities 3

Multimode Filtermultimode-filter
LP, BP, and HP responses can be independently enabled and combined via two panel switches.418
State-Variable Filterstate-variable-filter
Modified 12dB/oct state variable filter topology.418
Vcfvcf
418

Jacks 2

NameSignalVoltageDescription
Inputs (2)
Freq Incv—CV input used to modulate the filter cutoff frequency.418
Inputaudio—Audio signal input to the overdrive and filter circuit.418

Parameters 6

NameTypeRangeBehavior
Bandpass Switchswitch—Up position enables the bandpass filter response; down position disables it.418
Drive Attenuatorknob—Controls the pre-filter overdrive gain level.418
Drive Switchswitch—Enables or disables the overdrive circuit (custom diode clipper with 75x gain) that precedes the filter.418
Frequency Knobknob—Adjusts the center frequency of the state variable filter.418
Highpass/Lowpass Switchswitch—Three-position switch: up enables highpass response, middle disables both highpass and lowpass responses, down enables lowpass response.418
Resonance Knobknob—Adjusts the resonance (Q) of the filter. The Crow 3 does not self-oscillate.418

Firmware history 0 versions

No firmware history recorded.

References 2

  1. [418]
    Pittsburgh Modular Crow 3 Pamphletmanual
    source 418 canonical ↗ archived ↗
    ● verified 2026-05-16
  2. [419]
    Pittsburgh Modular store pageproduct_page
    source 419 canonical ↗ archived ↗
    ⚠ verified 2026-05-16 · manufacturer changed since last verified