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Koma Elektronik SVF-201 Filter Module

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Koma Elektronik announced the release of SVF-201, a state variable filter for the eurorack modular synthesizer format.

The SVF-201's filter circuit is built up with optical parts (vactrols).


Inputs and Outputs

The SVF-201 comes with CV inputs with attenuators for Cutoff, Resonance and Select/Mix Out, where the last one allows the user to sweep between the three different filter characteristics. The module also has adjustable gain up to +6dB, which gives the user to opportunity send a (slightly) overdriven signal into the circuit which results in MS20-like filter sweeps.


The unit comprises four audio outputs that can be used independently of each other at the same time, a High Pass, Band Pass, Low Pass and the unique CV’able Mix Out. The Mix Out out lets you sweep continuously through the other three outputs by means of a knob and control voltage.


Build and layout

Behind the Cutoff knob there are 2 small LEDs fitted that give a glow. The SVF-201 uses parallel mounted PCBs so it can be used in skiffs as well as in big cases, the total depth is less than 40 mm. 




- Size: 3U, 12HP (60,60mm)

- Interface: 2mm white powder coated aluminum front plate + silkscreen printing


- 4 audio outputs:

  • Low Pass
  • Band Pass
  • High Pass
  • Mix Out

- Audio input with attenuator / adjustable gain

- 3 CV inputs:

  • CV input for Cutoff with attenuator
  • CV input for Resonance with attenuator
  • CV input for Mix Out with attenuator 
    (The Mix Out attenuator acts as a normalized CV source if nothing is patched into the Select CV input)

- Large 30mm, full aluminum knob for Cutoff with white backlight (a jumper on the PCB lets you turn it off)

- Large 20mm, full aluminum knob for Resonance


Pricing & Availability:

The SVF-201 is now available at selected Koma dealers and from the company's webstore at

MRSP: 259 EUR (Incl. EU VAT) | 230 EUR (Excl. EU VAT)

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