Expert SleepersIvo Analog Low Pass Filter


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Expert Sleepers Ivo

Joining the ranks of killer Eurorack filters, the fully analog Ivo from Expert Sleepers is a resonant low pass filter with switchable filter responses. Offering both 2-pole12dB/Oct and 3-pole 18dB/Oct repsonses, Ivo has plenty of character on tap to spruce up your patches. With voltage control over Cutoff with attenuation, another dedicated Cutoff CV input set to ~1v/Oct, and a dedicated Feedback (resonance) control, the Ivo has everything you would expect from a filter in a compact, sleek panel. In the 2-pole setting, the module will self-oscillate, there's two input mixing—one audio input with an attenuator—discrete transistor OTAs, and Expert Sleepers's signature LED-ring jacks. Dial in your ideal sounds with the Ivo from Expert Sleepers.

Ivo Features

  • Analog resonant low pass filter
  • Switchable 2-pole, 12dB/Oct and 3-pole, 18dB/Oct response
  • Self-oscillation in 2-pole mode
  • 2 input mixer, 1 with attenuator
  • Voltage control over cutoff frequency and feedback (resonance)
  • Cutoff tracks at ~1v/Oct
  • Discrete transistor OTAs
  • Eurorack module
  • Width: 8hp
  • Depth: 37mm
  • Current draw: 22mA @ +12V, 18mA @ -12V
Product Demo Videos
Ivo - basic filter responses
The 'Ivo' VCF applied to a simple sawtooth wave, showing the different filter responses (2 or 3 pole), with and without feedback (resonance).
Expert Sleepers Ivo Analog Low Pass Filter Reviews