3-in-1 Subtractive Voice Module

A VCO, VCF and VCA voice module inspired by the golden age of Japanese analog.

VCO
* Discrete Voltage Controlled Oscillator with temperature compensated exponential converter
* 1 V/octave tracking over 8+ octaves
* Sync input with weak and strong oscillator sync modes
* 1 V/octave CV input + two attenuated exponential CV inputs for pitch/frequency modulation
* Five position octave range switch
* Selectable waveform output: Pulse, Ramp, Triangle, or Sine
* Pulse Width Modulation CV input

VCF
* Cascaded OTA design inspired by classic Roland topologies with selectable 12 or 24 dB response
* self-oscillating with 1 V/octave tracking (3-4 octaves, normalized to VCO KYBD CV input)
* VCO output and sub-oscillator normalized to two log attenuated inputs
* Two frequency CV inputs, one unipolar and one bipolar
* Voltage controlled resonance

VCA
* Traditional single OTA design
* Three log attenuated audio inputs with IN 1 normalized to VCF output
* Two CV inputs with selectable exponential or linear response

• 55 mA +12V
• 45 mA -12V
• 0 mA 5V
• 30 mm Depth

This Module is currently available.