Mutant BD9 Bass Drum - 13HP

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Item: N13-5709

Mutant BD9 Bass Drum - 13HP


The next module in the Mutant Drums series is the Mutant BD9. It is not just another clone or model of the 808, nor is it a continuation of the other Hexinverter Mutant Bassdrum. It is designed to explore uncharted bassdrum territory, complete with a sub-oscillator for added bass and beefiness. The primary VCO provides classic 909-style sinusoidal bassdrum sounds, but can also switch to Squarewaves. The pitch decay control allows one to adjust the duration and amount of the pitch modulation, very important for making drumhead-like pitch modulation. A click generator helps decide the attack intensity from heavy punch to relaxed thumps. The general timbre can vary according to the Drive control, which ranges from warm analog bassdrums to speaker-shattering overdriven kicks. The suboscillator addition is a rare and bold addition to this bassdrum module, which provides some extra bass for the phattest of kicks. 


  • Primary VCO has Sine and Squarewave outputs
  • Pitch of VCO spans several octaves
  • Pitch Decay adjusts duration and amount of pitch modulation
  • Amplitude Decay adjusts envelope of bass drum
  • Click Generator decides attack intensity 
  • Drive control for timbral density
  • Square sub oscillator available 
  • Sub oscillator waveshape decided with jumpers on PCB
  • Sub oscillator can be 0, -1, or -2 octaves down

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  • Eurorack Module
  • Width: 13HP
  • Depth: 30mm
  • Current Draw: 50mA@+/-12V

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