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Bastl Instruments

Dark Matter

Dark Matter

Regular price $465.00 CAD
Regular price Sale price $465.00 CAD
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Dark Matter is a high energy sound processor and signal generator that unleashes the crazy raw power of audio feedback into your eurorack system.

It’s inspired by “no input” mixer feedback techniques that explore the complex natural behaviors of amplifier circuits pushed beyond their limits. Dark Matter brings this behavior to the modular synth, adds voltage control to everything, plus tons of patching options and a big ol’ bag of tricks for making feedback a truly playable effect.


  • Input VCA with gain and soft clipping
  • Hyper drive switch for extra punch
  • 2 band equalizer
  • Voltage controlled bass and treble boost/overdrive
  • Envelopes generated by INPUT signal
  • Outputs 0-5V. Normalized to FBK CV and X-FADE CV inputs
  • Low and High decay time switch
  • Input pre or post DRIVE switch
  • Envelope monitor LED
  • Voltage controlled feedback
  • High frequency “warning” LED
  • External feedback loop section
  • FBK OUT and FBK IN jacks
  • Output phase switch
  • FBK VCA in/out switch
  • Voltage controlled crossfade between input and feedback
  • Input pre/post-drive crossfade switch
  • DYNAMICS envelope normalized to mix CV input


13 HP
24 mm
+12V: < 75mA
-12V: <75 mA
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