Description

Blending analog filtering with digital recall and control, the Erica Synths Graphic Resonant FB offers a powerful approach to spectral shaping in Eurorack. Equipped with ten discrete bandpass filters, the FB gives users hands-on control over each band’s boost and cut settings, either manually or via voltage control. With built-in memory for 128 presets and clock synchronization, it’s designed for modular artists who need detailed sound shaping and advanced modulation. Sound designers can use the FB to sculpt harmonic content with precision, or even play the unit as an instrument using unique resonance feedback configurations. The FB’s skiff-friendly design, 20HP format, manual controls and voltage-controlled resonance make it a standout tool for studio or live modular setups.

Erica Synths Graphic Resonant FB 10-Band Filterbank
Features
  • Ten analog bands sculpt detailed textures for modular sound shaping
  • Manual and CV boost or cut enables real-time spectral control
  • Save and recall up to 128 filter and resonance presets
  • Configurable resonance feedback loops create custom filter responses
  • Clock input synchronizes filter changes to external gear
  • Multimode operation transforms the module into a dynamic filter or analyzer
  • Dynamic spectral compressor mode tames or enhances frequency bands
  • Discrete and morphing patterns enable fluid or abrupt sound transitions
  • Main even and odd outputs offer expanded routing possibilities
  • 1.3” module depth fits comfortably in skiff-friendly cases
Specs
General
  • Product type: Eurorack graphic resonant filterbank module
  • Model: Graphic Resonant FB
Filterbank
  • Filter type: Analog ten-band filterbank
  • Band count: 10 bandpass filters
  • Band frequencies: 29Hz, 61Hz, 115Hz, 218Hz, 411Hz, 777Hz, 1.5kHz, 2.8kHz, 5.2kHz and 11kHz ±10%
  • Band control: Manual and voltage-controlled boost and cut per band
Resonance and Modes
  • Resonance control: Manual and voltage-controlled resonance
  • Feedback: Configurable resonance feedback loops
  • Filter modes: Multimode filter mode
  • Analyzer mode: Spectral analyzer mode
  • Dynamic EQ mode: Dynamic spectral compressor mode
Presets and Control
  • Preset memory: 128 presets
  • Pattern control: Discrete and morphing pattern change
  • CV inputs: Configurable CV inputs
  • Clock input: Clock input for synchronization
Audio
  • Audio signal amplitude: 10V peak to peak
  • Main outputs: Main, even and odd outputs
Expansion
  • Expander support: Compatible with Graphic Resonant Filterbank Expander for band level control
Power
  • Power consumption with expander: +12V 138mA to 145mA and -12V 50mA
  • Power supply: Eurorack case and power supply required
Dimensions
  • Width: 20HP
  • Depth: 1.3"

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