Eurorack Reference / modules /intellijel/morgasmatron audit site v0.1 — milestone 3
intellijel/morgasmatron

Morgasmatron

Intellijel

Capabilities 3

Dual Multimode Filterdual-multimode-filter
578
Ring Modulatorring-modulator
Ring modulation achieved by phase-inverting Filter B and feeding an audio signal into XFADE CV with filters in DRY mode and XFADE at noon.578
Voltage-Controlled Oscillatorvco
Both filters self-oscillate at maximum Q, producing pitched sine waves tracking 1V/oct inputs; usable as dual sine wave oscillators.578

Jacks 14 — 11 in / 3 out

NameSignalVoltageDescription
Inputs (11)
1V/OCT Acv—Dedicated 1V/OCT CV input for Filter A cutoff pitch tracking. Normalled to Filter B's 1V/OCT input when Filter B's jack is unplugged.578
1V/OCT Bcv—Dedicated 1V/OCT CV input for Filter B cutoff pitch tracking. Receives Filter A's 1V/OCT signal via normalling when nothing is plugged in.578
FM1 Acv—First CV input for Filter A cutoff. Unipolar attenuator; tracks 1V/Oct when fully clockwise.578
FM1 Bcv—First CV input for Filter B cutoff. Unipolar attenuator.578
FM2 Acv—Second scalable CV input for Filter A cutoff. Normalled to Filter B's FM2 input when Filter B's FM2 jack is unplugged. Level and polarity controlled by FM2 attenuverter knob.578
FM2 Bcv—Second scalable CV input for Filter B cutoff. Receives Filter A's FM2 signal via normalling when nothing is plugged in.578
IN Aaudio—Audio input to Filter A.578
IN Baudio—Audio input to Filter B.578
Q CV Acv—CV input for controlling Filter A resonance (Q).578
Q CV Bcv—CV input for controlling Filter B resonance (Q).578
XFADE CVcv—CV input for controlling XFADE blend. Passes through XFADE Attenuverter and sums with XFADE knob position. When audio-rate signals are patched here with phase-inverted Filter B, creates ring modulation.578
Outputs (3)
MIX OUTaudio—Outputs a blend of Filter A and Filter B determined by the XFADE knob and XFADE CV input.578
OUT Aaudio—Audio output of Filter A.578
OUT Baudio—Audio output of Filter B.578

Parameters 21

NameTypeRangeBehavior
A CUTOFFknob—Sets the cutoff frequency of Filter A. Combined with FM1 and FM2 CV inputs.578
A FM1knob—Controls the amount of attenuation for Filter A's FM1 input. Tracks 1V/Oct when fully clockwise but a dedicated 1V/OCT input is also available.578
A FM2knob—Attenuverter for Filter A's FM2 input. Maximum positive effect fully clockwise; maximum inverted effect fully counter-clockwise; no effect at 12 o'clock.578
A INknob—Sets the drive/amplification of Filter A's input signal. Unity gain at 12 o'clock with a typical 10Vp-p Eurorack signal. Past 12 o'clock induces soft clipping.578
A MODEknob—Cycles between the six filter modes for Filter A: LP2, LP1, BP1, HP1, HP2, BR1.578
A Qknob—Sets the resonance of Filter A. Combined with the Q CV input. At maximum, causes self-oscillation producing a pitched sine wave.578
A Q-DRIVEknob—Adds additional drive to Filter A's resonance path to prevent resonance being drowned out at higher amplitudes. Provides a warming growl at mid Q values. When the filter self-oscillates, increasing Q-DRIVE soft-clips the sine wave, adding harmonic content. Has no effect when Q is turned down.578
B CUTOFFknob—Sets the cutoff frequency of Filter B. Combined with FM1 and FM2 CV inputs.578
B FM1knob—Controls the amount of attenuation for Filter B's FM1 input.578
B FM2knob—Attenuverter for Filter B's FM2 input. Maximum positive effect fully clockwise; maximum inverted effect fully counter-clockwise; no effect at 12 o'clock.578
B INknob—Sets the drive/amplification of Filter B's input signal. Unity gain at 12 o'clock with a typical 10Vp-p Eurorack signal. Past 12 o'clock induces soft clipping.578
B MODEknob—Cycles between the six filter modes for Filter B: LP2, LP1, BP1, HP1, HP2, BR1.578
B Qknob—Sets the resonance of Filter B. Combined with the Q CV input. At maximum, causes self-oscillation producing a pitched sine wave.578
B Q-DRIVEknob—Adds additional drive to Filter B's resonance path to prevent resonance being drowned out at higher amplitudes. Provides a warming growl at mid Q values. Has no effect when Q is turned down.578
DRY Aswitch—When switched to Dry (up), bypasses Filter A so its output is identical to its input. Used with XFADE to set a wet/dry mix.578
DRY Bswitch—When switched to Dry (up), bypasses Filter B so its output is identical to its input. Used with XFADE to set a wet/dry mix.578
OVERDRIVEswitch—Overdrive distortion modelled after the Proco Rat guitar pedal.578
PHASE INVERTswitch—Inverts the phase of Filter B's signal fed to the XFADE/MIX output. Used for ring modulation (with XFADE at noon and DRY switches active) or creating subtly different timbres when combining the two filters.578
SERIES/PARALLELswitch—Routes signal flow between the two filters. In Series (up), Filter A output feeds into Filter B input. In Parallel (down), both filters process independently. Determines how the two filters are combined at the MIX output.578
XFADEknob—Sets the balance between Filter A and Filter B at the MIX output. At 12 o'clock both filters are equally present. Clockwise favors Filter B; counter-clockwise favors Filter A. When Filter B is phase-inverted and XFADE is at noon, the filters cancel to silence — routing an audio signal into XFADE CV creates ring modulation.578
XFADE ATTENUVERTERknob—Reduces and/or inverts how much the XFADE CV input modulates the XFADE. At 12 o'clock, XFADE CV has no effect. Clockwise skews toward more Filter B; counter-clockwise skews toward more Filter A.578

Firmware history 0 versions

No firmware history recorded.

References 2

  1. [578]
    Intellijel Morgasmatron Manual (2021.08.03)manual
    source 578 canonical ↗ archived ↗
    ● verified 2026-05-21
  2. [579]
    Intellijel Morgasmatron product pageproduct_page
    source 579 canonical ↗ archived ↗
    ⚠ verified 2026-05-21 · manufacturer changed since last verified