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Quad Pingable LFO - 12HP

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Item: N13-1671

Availability: In stock

Quad Pingable LFO - 12HP

4MS Quad Pingable LFO

4MS’s Quad Pingable LFO module is a quad tap-tempo LFO with dedicated reset and variable skew. The module is an efficient and compact modulation source for both large and small systems. Each of the LFO’s frequencies is determined by the time in-between pulses; the LFOs themselves produce a variety of useful waveshapes, and can easily modulate and trigger one another to create complex and evolving signals.

Quad Pingable LFO Features

Four independent LFOs:

  • Ping input jack
  • Tap tempo button
  • On/Mute button (latching)
  • Skew CV jack and knob
  • Reset jack
  • LFO output
  • LED indicates output level
  • Timing of each LFO is set by a clock (ping), either external or internal (tap tempo)
  • Ping button flashes to the incoming ping signal or internal tap clock
  • Mute/On button mutes the output, lights up when "On"
  • Skew CV gives continuous transition from ramp-up, to triangle, to ramp-down without changing overall length of curve
  • Knob provides offset for signal on the jack, or manual control if nothing is plugged into the jack
  • Minimum Skew setting gives "plucky" curve (psuedo-expo fall)
  • Full Skew CV range is 10V, so one LFO channel can be used to modulate another channel's Skew
  • Outputs can be polar or bi-polar: Jumper selects 0 to +10V (e.g. for driving a VCA), or -5V to +5V (e.g. for modulating parameters)
  • Reset jack re-starts LFO immediately
  • Reset changes the starting point of the LFO with respect to ping clock
  • Allows for easy quadrature outputs
  • Pressing the On/Mute button can optionally send a reset pulse (jumper must be installed)
  • Comparators on ping and reset jacks allow for any waveshape to be used for inputs
  • With an optional ribbon cable, ping jacks can be normalized to QCD clock outputs


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  • Eurorack Module
  • 12 HP Wide
  • 1.5 inches deep

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