Erica Synths
Black LFO - 10HP

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Item: N13-4255

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Black LFO - 10HP


The Erica Synths ‘Black LFO’ is a broad function LFO-based module. Apart from various waveform selection, frequency divider/multiplier, tap-tempo and external frequency synchronization functions, it has a few features that set it apart from other LFOs. For instance, gate input for a key follow function and a built in VCA circuit that controls LFO amplitude in both auto and gated modes. This unique LFO module makes for a creative addition to any Eurorack System.

The Erica Synths Black Series features high-end modules with unique functionality. Only the highest quality components are used and all inputs and outputs are protected against undesired over-voltage. When designing the Black Series, Erica Synths did not economize on the module width, they put design and usability first. Big knobs are assigned to functions that make differences in sound. The Erica Synths Black Series are a range of modules that together make an entire synthesizer! 


  • LFO-Based Broad Function Utility Module
  • Frequency Control – Sets desired LFO Frequency
  • LFO LED Indication – Indicates LFO Output State
  • LFO Waveform Select Control – Selects Desired LFO Waveform of 7 available
  • Tap-Tempo Button – set LFO Frequency
  • Tap-Tempo LED Indication – Indicates Tap Rate
  • Divide Control – Divide or Multiply LFO Frequency by Value set by this knob
  • Built-In VCA that controls LFO Signal Amplitude (VCA Auto-Loops if no Gate is applied)
  • Hold/Attack Control – Sets value for VCA, Up ramp for Auto-Loop (For standard LFO operation set this knob fully CCW)
  • Decay Control – Sets desired Decay Time (For standard LFO operation set this knob fully CW)
  • Hold/Attack Select Switch – If Hold Mode is selected, LFO Signal is 0 for time set by the knob (0-2”) and then rapidly reaches 5V
  • External Sync Input – Apply External Clock Signal here to synchronize LFO Frequency to the External Clock
  • Gate Input – For Built-In Key Follow Function – patch Gate here and LFO will start only when Gate is high; when Internal VCA is used, the LFO Signal Amplitude will follow ASR or HSR envelope
  • CV Input – Apply LFO Frequency CV here and alter LFO Frequency
  • LFO Output

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  • Eurorack Module
  • 10 HP Width
  • 25mm Depth
  • Current Draw: 25mA @ +12V, 13mA @ -12V

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