The System80 810 is a 30 HP Eurorack module consisting of a standard subtractive analogue 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 analogue, featuring elements of the System 700, System 100m, and the Jupiter-8. Add some modulation and an envelope generator to create a complete patchable analogue 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, normalised to VCO KYBD CV input) VCO output and sub-oscillator normalised 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 normalised to VCF output Two CV inputs with selectable exponential or linear response Width: 30 HP Power: 60 mA +12V, 50 mA −12V Video: https://youtu.be/XgENzkrM-0IProduct Specs Item Number: 18951 Make: System80 Model: 810 MK2 Condition: Brand New Finish: Black Categories: keyboards-and-synths ⇒ eurorack Function: Filter Mixer Oscillator Synth Voice VCA Made In: Canada MPN: S80-810MK2 Modular Grid: Eurorack ⓘ + Dimensions*: 30 HP 30 mm deep Power*: 60 mA +12V 50 mA -12V 0 mA 5V * User contributed details