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Filter

FilterFreak 2

Soundtoys

Where to get itAvailable from Soundtoyssoundtoys.com

FilterFreak 2 is a dual-filter resonant filter plugin that combines two independent, customizable filters (lowpass, bandpass, highpass, or notch) that can be run in parallel or serial configuration. It brings classic analog filter hardware character—from Mutron III envelope followers to Morley Wah-Wah effects to Sherman FilterBank-style resonant sweeps—with extensive modulation options including LFO, Rhythm Mode with custom patterns, Envelope following, ADSR, Random/Sample-and-Hold, and Step triggering.

Written from the manual and checked against it. How we check

Key Features

01Two independent filters in parallel or serial mode
02Four filter shapes: LPF (Lowpass), BPF (Bandpass), HPF (Highpass), BRF (Band Reject/Notch)
03Pole settings: 2, 4, 6, or 8 poles (12, 24, 36, or 48 dB/octave slopes)
04Six modulation modes: LFO (0–100 Hz), Rhythm with custom pattern editor and swing/shuffle groove, Envelope follower with threshold and gain, ADSR, Random/Sample-and-Hold, and Step triggering
05Seven Analog Style algorithms: Clean, Fat, Squash, Dirt, Crunch, Shred, Pump
06Frequency modulation range: ±10 octaves; LFO Rate 0–100 Hz; customizable LFO shapes with Shape Editor
07Linked control option for Frequency, Resonance, and Gain across both filters
08Stereo L/R offset and L/R mode (Normal or Flipped) for dual-channel mono-to-stereo effects

Things to Try

  • 01Set one filter to Lowpass and the other to Highpass, then link Frequency controls and use Rhythm Mode with a 1/4 note rate to create a sweeping notch effect that tracks with your song tempo
  • 02In Serial mode, combine a Bandpass filter with Resonance at mid-level on Filter 1 and a Highpass on Filter 2, then increase Poles to 8 on Filter 2 for a steep, dramatic filter interaction
  • 03Use Step Mode on a drum track with Trigger set to a percussion transient threshold, then set the two filters to different modulation directions (Freq Mod 1 positive, Freq Mod 2 negative) to create a swirling vocal 'Wah' sound
Formats
VSTVST3AUAAX
Official Website↗User Manual↗

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FilterFreak 2 by Soundtoys | Plugin Library