omsonic – 4 Pole Cascaded OTA VCF (RNF) – Discontinued


A 4 pole eurorack VCF made using a classic cascaded OTA & JFET topology.

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This module is now DISCONTINUED !

omsonic RNF (Really Nice Filter) a Eurorack VCF

  • 4 pole cascaded OTA VCF using a classic OTA & JFET topology.
  • Comparable in sound to famous vintage Roland synths such as the SH-101, MC-202, System 100m, SH-2, SH-7 etc..
  • Pure sinewave output with stable 1V/oct tracking.
  • 4-pole Low Pass output, 2-pole Low Pass output and 2-pole Band Pass output .
  • 2 attenuated CV inputs and 2 attenuated audio inputs.
  • Built in the UK with quality parts.

Physical info –
25 mA +12V
27 mA -12V
0 mA 5V
31.5 mm Depth
12 HP

The omsonic RNF is on Modular Grid !

I do ship abroad but expect to pay extra for postage !

The unit will be sent in an anti static bag to prevent damage to its ICs.
Any questions please send me an Email !

Sound Demo  


Eurorack VCF omsonic RNF analogue filter

Additional information

Weight200 g