System80 810 Eurorack Synth Voice Module

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System80 810 Eurorack Synth Voice Module
£409.00

Availability: Out of stock

Eurorack Voice Module

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The System80 810 is a 30 HP Eurorack module consisting of a standard subtractive analog synthesizer voice: Voltage Controlled Oscillator (VCO), Voltage Controlled Filter (VCF), and Voltage Controlled Amplifier (VCA). While not strictly a clone, the design of each sub-module is inspired by the golden age of Japanese analog, featuring elements of the System 700, System 100m, and the Jupiter-8. Add some modulation and an envelope generator to create a complete patchable analog voice with a distinctively vintage character.

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

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