Eurorack Reference / modules /mutable-instruments/peaks audit site v0.1 — milestone 3
mutable-instruments/peaks

Peaks

Mutable Instruments

Two-channel, general-purpose trigger processor: translates incoming triggers or gates into envelopes, synchronized periodic modulations (LFO and tap-LFO), or drum signals.403

Capabilities 4

Drum Synthesizerdrum-synth
403
Envelope Generatorenvelope-generator
Two-channel ADSR envelope generator; quartic attack, exponential decay/release, 0.2ms to 8s segment durations.403
LFOlfo
Two-channel LFO with 5 waveforms, waveform variations, 0.03–160 Hz, and tap-tempo sync mode.403
Step Sequencerstep-sequencer
4-step minisequencer in twin/expert mode (2-step in split mode), accessible via alternate function mode.403

Jacks 4 — 2 in / 2 out

NameSignalVoltageDescription
Inputs (2)
TRIG 1trigger—Channel 1 trigger/gate input. Trigger threshold is 0.7V.403
TRIG 2trigger—Channel 2 trigger/gate input. Trigger threshold is 0.7V.403
Outputs (2)
OUT 1mixed0V to 8V403
OUT 2mixed0V to 8V403

Parameters 14

NameTypeRangeBehavior
Attackknob0.2ms – 8000ms403
Decayknob0.2ms – 8000ms403
FUNCTIONbutton—Cycles through the 4 main functions (ENV, LFO, TAP, DRUM). Hold for one second to access 4 alternative functions.403
Frequencyknob0.03Hz – 160Hz403
Knob 1knob—403
Knob 2knob—403
Knob 3knob—403
Knob 4knob—403
Phase on restartknob—403
Releaseknob0.2ms – 8000ms403
SPLITbutton—Toggles between twin (LED off) and split (LED on) modes. Hold for one second to enter expert mode; in expert mode, toggles between channel 1 and 2, hold again to return to normal.403
Sustainknob—403
Waveformknob—Selects from 5 waveforms: sine, linear slope, square, steps, random.403
Waveform variationknob—Modifies waveform shape per selected waveform: wavefolder for sine; ascending/triangle/descending balance for slope; pulse-width for square; number of steps and interpolation method for steps/random.403

Firmware history 2 versions

VersionReleasedNotes
20152015Hardware revision v3: Thonkiconn jacks, round-top LEDs, RunRun illuminated push-buttons, calibration now performed in software (no back trimmers).403
20142014First batch made in France (v0.2): green PCB (originally black).403

References 2

  1. [403]
    Peaks Manual (full)manual
    source 403 canonical ↗ archived ↗
    ● verified 2026-05-15
  2. [404]
    Mutable Instruments Peaks product pageproduct_page
    source 404 canonical ↗ archived ↗
    ● verified 2026-05-15