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3-in-1 Subtractive Voice Module.
The System80 810 MK2 is a 30 HP Eurorack module consisting of a high quality subtractive analog synthesizer voice: Voltage Controlled Oscillator (VCO), Voltage Controlled Filter (VCF), and Voltage Controlled Amplifier (VCA). More than just a clone, the design of each sub-module is inspired by the golden age of Japanese analog. Add some modulation and an envelope generator to create a complete patchable analog voice with a distinctly vintage character.
VCO
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Discrete Voltage Controlled Oscillator with temperature compensated exponential converter
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1 V/octave tracking over 7-8 octaves
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Sync input with weak and strong oscillator sync modes
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1 V/octave CV input + two attenuated exponential CV inputs for pitch/frequency modulation
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Six position octave range switch
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Selectable waveform output: Pulse, Ramp, Triangle, or Sine
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Pulse Width Modulation CV input
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Sub-oscillator
VCF
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Cascaded OTA design inspired by classic topologies with selectable 12 or 24 dB response
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self-oscillating with 1 V/octave tracking (3-4 octaves, normalized to VCO KYBD CV input)
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VCO output and sub-oscillator normalized to two log attenuated inputs
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Two frequency CV inputs, one unipolar and one bipolar
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Voltage controlled resonance
VCA
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Traditional single OTA design
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Three log attenuated audio inputs with IN 1 normalized to VCF output
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Two CV inputs with selectable exponential or linear response
Updates to the MK2 version:
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Solid-state octave switching
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Memory recall of waveform selection
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Steel back cover
This product has been unboxed and opened. It is in near-mint condition and show virtually no signs of use. It comes with all the original accessories and packing. This is a final sale but includes the manufacturer’s full warranty.