befaco-pony-vcf

Befaco Pony VCF

Compact ladder VCF plus VCA plus three-channel mixer

6 HP Eurorack module

Pony VCF is a compact 6HP Eurorack module combining a voltage-controlled low-pass filter, VCA, and three-channel mixer in a single unit. Built around the Sound Semiconductor SSI2144 FATKEYS chip using Dave Rossum's enhanced ladder topology, it delivers the elegant warmth of classic transistor filters without associated distortions. Frequency and Q temperature compensation, plus resonance-compensated output level, keep the sound balanced and musical across all settings.

Features

  • SSI2144 FATKEYS chip based on Dave Rossum's enhanced ladder topology
  • Voltage-controlled low-pass filter with frequency and Q temperature compensation
  • Output level compensated against resonance to maintain perceived volume at high Q
  • Three-channel audio mixer with individual fader attenuators
  • Integrated VCA at the end of the signal chain
  • Two filter CV inputs (CV1 with attenuator, CV2 direct)
  • Dedicated Resonance CV input
  • Dedicated Volume CV input for VCA control
  • CV1 MODE SWITCH: routes CV1 to VCA or applies fixed 10V for always-open VCA
  • Audio OUT normalled to IN3 for easy self-feedback patching
  • Peak meter with green signal-present LED and red saturation LED
  • 6HP compact footprint

Controls & Jacks (17)

  • Manual Cut-Off Control— Adjusts the cutoff frequency of the filter
  • CV1 Mode— Selects between different filter response modes
  • CV IN 1 Attenuator— Attenuates or inverts the mode CV modulation
  • Peak Meter (Green)— Visual feedback indicator
  • Peak Meter (Red)— Visual feedback indicator
  • Fader 1— Volume control for Audio IN 1
  • Fader 2— Volume control for Audio IN 2
  • Fader 3— Volume control for Audio IN 3 (also used for feedback normalling)
  • IN 1— Audio signal input to the filter
  • OUT— Filtered audio output
  • CV1— Control voltage input for modulating the cutoff frequency
  • RES CV— Control voltage input for modulating resonance
  • CV2— Control voltage input for modulating filter mode
  • VCA— Control voltage input for modulating the drive
  • IN 2— Additional filter output or modulation output
  • IN 3— Additional filter output or modulation output
  • Manual Resonance Control— Controls the resonance/emphasis at the cutoff frequency

How-To Guides

  • Classic Low-Pass Filter Sweep
  • Self-Oscillating Sine Lead
  • Envelope-Gated Filter and Amplitude
  • Three-Source Blend into Filter
  • Filter Self-Feedback Growl
  • LFO Filter Wobble
  • Dynamic Resonance Morphing
  • Two-CV Filter FM Texture
  • Drum Bus Low-Pass Filter
  • Generative Random Filter Drift

Explore the interactive Pony VCF panel on BleepDex — tap any control to learn what it does.

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