Make Noise
STO Oscillator - 8HP

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Item: N13-4642

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STO Oscillator - 8HP


The STO is Make Noise's classic VCO. It is similar to a single channel of the DPO, but with a few adjustments. It has three outputs, a dedicated Sine output, a square wave Suboctave output, and a waveshaped output, which morphs from a soft triangle to something in between a Triangle and Square wave. There are both Linear and Exponential FM inputs, as well as a Sync input. The Waveshaping circuit is also voltage controllable, providing timbral shifts without any filter. It tracks musically using the 1V/Oct input over 5 octaves. The Suboctave output is kept separate when the Sync input is used, so the suboctave has its own Sync input, S-Gate. For those wanting the sound of Make Noise without the price of a DPO, the STO is the perfect solution. 


  • Compact Voltage Controlled Oscillator
  • Triangle Core with outputs for SINE, SUB and Variable SHAPE
  • Unique Variable SHAPE circuit ripples Even and Odd harmonics for subtle timbral shifts
  • Linear FM input with Depth control
  • EXPOnential input for deep FM, SYNC sweeps or Transposition of sequences
  • SUB-Oscillator yields max bass
  • S-Gate input for gating or sync of SUB-Osc. independent of other outputs
  • Hard SYNC circuit which combined with Linear FM and Variable SHAPE yields harmonically rich sounds
  • Pairs well with the MMG or Optomix

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  • Eurorack Module
  • 8 HP Width
  • 30mm Depth
  • Current Draw: 40mA @ +12V, 30mA @ -12V

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