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SCM + (Shuffling Clock Multiplier Plus)

Available Immediately
Product number: CV4226

Expanded Clock Multiplier

  • +12V 52mA
    -12V 15mA
    +5V 0mA
    Width 12HP
    Depth 24mm


The SCM Plus is a clock multiplier with eight gate outputs and complex beat manipulation features. It combines the classic Shuffling Clock Multiplier (SCM) and SCM Breakout (SCMBO) into a single module using higher precision hardware than its predecessors.


  • Eight gate outputs, each multiplying up to x32
  • Five slipped/shuffled/skipped clock outputs and three steady clock outputs
  • Five knobs with CV jacks:
  • Rotate shifts multiply-by amount
  • Slip causes particular beats to land ahead in time
  • Shuffle selects which beats are affected by Slip
  • Skip omits certain beats in a pattern
  • Pulse Width controls width of output pulses
  • Resync trigger input resets the slip/shuffle/skip counters
  • 4x Fast button and gate jack increase multiply-by amount by a factor of four
  • Mute button and gate jack stop all outputs
  • Save Clock feature restores last saved tempo when powering up
  • Clock Bus jumper allows module to receive tempo from other modules over the power bus
  • Free Run jumper allows unit to operate without an external clock
  • LED dimmer trimpot allows for custom LED brightness



  • Clock Input
    • 2.5V threshold
    • 40kHz maximum
  • Clock Outputs
    • 12V gate outputs, rise/fall time approximately 1us
    • 40kHz maximum
    • Jitter (x1 output): max 30µs < 120BPM, max 5µs >= 120BPM
    • Latency (clock in to x1 output): 8µs worst-case, 3.5µs typical
  • CV Inputs:
    • Rotate, Slip: Knob attenuates jack signal. Full range: 0V to +3.3V
    • Shuffle, Skip, PW: Knob offsets jack signal. Full range: -5V to +5V
  • Gate Inputs:
    • 4x Fast, Mute: 2.5V threshold. Button toggles state.

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