C4RBN is 100% analog.

C4RBN (pronounced "Carbon") is a 4/2-Pole State Variable Filter with input saturation, output wavefolding, and more.  It features a wide range of character from nice and clean filter sounds to screaming, squelchy, acidic mayhem.  C4RBN builds on WMD’s history with state-variable filters adding interface refinements and improved warm environment stability for live performance and beyond. A novel input saturation circuit plus the output wavefolder from WMD’s classic SYNCHRODYNE filter pair together to push the timbral flexibility to the next level. C4RBN is the building block to life in your eurorack.Highlights3 independent 2 pole outputs for High Pass, Low Pass, and Bandpass Inverting Attenuator (attenuverter) for FM allows for positive and negative CV control over the cutoff frequencyIndependent 4 Pole output with switchable frequency responseInput Saturation with 3 switchable levels and CV input for additional fine controlPING circuit generates a fast decay envelope emulating the response of a vactrolOutput wavefolder for extra bite and screaming character Resonance with self oscillationTemperature compensated 1V/Oct tracking.Performance focused control scheme allows for on-the-fly changes of filter types with intentionSpecs:Size: 4hpPCB height: 112mmDepth: 38mm (with cables)Power: +92mA, -82mAAudio Input: 100k ohm impedance20Vpp rangeV/Oct Input: 82k ohm impedanceTemperature CompensatedCV Inputs: >100k ohm impedanceFilter Outputs: 1k ohm impedance20Vpp range C4RBN is the replacement for the WMD/SSF MMF