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Eurorack Modules

Available to buy exclusively from Thonk

Prok drum modules are a series of 4HP drum synthesis and morphing modules, consisting of a Bassdrum, Snare, Hi-Hat and Hand Clap.

These Soundcloud demos below are all untreated recordings direct from the modules. No external FX, processing, reverb, distortion or filtering has been added. This is what the modules sound like out of the box with trigger sequencing and external CV modulation.

All drums are synthesised digitally, there are no samples!

Thonk Synth DIY · Prok Modular Drums - Demos - BD, SN, HH, CP

Bass Drum

The Bassdrum synthesis engine can take you anywhere from the simple 808 / 909 one oscillator bassdrum sound, to screaming hardcore kicks that combinine four oscillators, two waveshapers and a noise source. You want solid, it does solid. You want banging distorted harmonics you get them too. Use the X and Y controls to find your sweet spot or create ever evolving drums by morphing between patches.

Controls

  • X - Morph X
  • Y - Morph Y
  • Button Press - Trigger Sound
  • Button Hold - Change Quad

CV Inputs

New in V6 Firmware. X and Y CV inputs can be changed via the Drum Central app.

X CV can control either X Morph or Tuning

Y CV can control either Y Morph or Decay

  • X - Morph X
  • Y - Morph Y
  • Trigger - Trigger Sound

Snare Drum

Snappy stuff. Splashy things. Sounds a bit like the 808 and 909 but BETTER and does more than both combined. 2 oscillators and a specially crafted shift register based noise source. The 909 has one but this one is based on the famous SID chip. It also features variable sample rate so you can reach that sweet airy high noise as well as those low down digital dirty noise grains.

Controls

  • X - Morph X
  • Y - Morph Y
  • Button Press - Trigger Sound
  • Button Hold - Change Quad

CV Inputs

New in V6 Firmware. X and Y CV inputs can be changed via the Drum Central app.

X CV can control either X Morph or Tuning

Y CV can control either Y Morph or Decay

  • X - Morph X
  • Y - Morph Y
  • Trigger - Trigger Sound

Clap

Take 3 noise sources - White, Pink and DIGI, mix them, waveshape them, run them through filters and special clap envelopes. Add a touch more filtering and some reverb. C C C CLAP. etc. There’s a huge variety of clap sounds available, from crispy X0X and Linn style to the tight RZ-1.

Controls

  • X - Morph X
  • Y - Morph Y
  • Button Press - Trigger Sound
  • Button Hold - Change Quad

CV Inputs

New in V6 Firmware. X and Y CV inputs can be changed via the Drum Central app.

X CV can control either X Morph or Tuning

Y CV can control either Y Morph or Decay

  • X - Morph X
  • Y - Morph Y
  • Trigger - Trigger Sound

Hi Hat

Clicky sounds, metallic sounds. 6 square wave oscillators and a SID style noise generator are routed through a web of filters, envelopes and waveshapers. It can also make chords and drones or can be used as a weird noise source.

Controls

  • X - Morph X
  • Y - Morph Y
  • Button Press - Trigger Sound
  • Button Hold - Change Quad

CV Inputs

New in V6 Firmware. X and Y CV inputs can be changed via the Drum Central app.

X CV can control either X Morph or Tuning

Y CV can control either Y Morph or Decay

  • X - Morph X
  • Y - Morph Y
  • Trigger - Trigger Sound

Klonk

General percussion synthesizer module. From rim to tom to all manner of weird and wonderful percussion sounds. Only available as a firmware update via the Prok Drum Central application

Controls

  • X - Morph X
  • Y - Morph Y
  • Button Press - Trigger Sound
  • Button Hold - Change Quad

CV Inputs

New in V6 Firmware. X and Y CV inputs can be changed via the Drum Central app.

X CV can control either X Morph or Tuning

Y CV can control either Y Morph or Decay

  • X - Morph X
  • Y - Morph Y
  • Trigger - Trigger Sound