Polyverse Music Filtron

Filtron is a free variable filter VST plugin for Windows and OSX...



Filtron is a 12dB state variable filter that can smoothly transition between lowpass, bandpass, and highpass. It is capable of self-oscillation with resonance levels that can reach up to 11! Filtron also features a fat sounding internal saturation algorithm and a sizzly post overdrive with two modes to choose from: cold and hot.


  • 12db state variable filter
  • Transition smoothly between Lowpass, Bandpass, Highpass
  • Self-oscillating resonance
  • Fat Internal saturation
  • Post overdrive with Cold and Hot modes
  • Stereo Modulation via CV
  • Integrates with Gatekeeper
  • Optimized for audio rate modulation
  • State of the art zero delay filter design
  • Internally oversampled
  • 100% FREE

Filtron’s parameters can be modulated via sidechain by CV generators such as Gatekeeper. Each channel in a stereo pair is treated as a separate modulation source and can be split to stereo. Filtron is also optimized for audio rate modulation.

Filtron’s internal saturator has a warm soft sounding curve. The filter sounds different depending on the input level.

It also has a powerful overdrive on it’s output, with two modes: cold – a screaming overdrive for those TB-303 riffs and hot – a warm and fuzzy overdrive for the rest 😉

Experiment with Filtron in your effects chain today!

Supports VST2 / VST3 / AU / AAX plug-in formats

For Windows 64bit and OSX 10.9+ 64bit