Eurorack Reference / modules /alm-busy-circuits/quaid-gigaslope audit site v0.1 — milestone 3
alm-busy-circuits/quaid-gigaslope

Quaid Gigaslope

ALM Busy Circuits

Four-channel multi-mode modulator with each channel outputting a variable staged slope that can act as a complex envelope, flexible LFO, or step sequence. Each slope can contain up to 13 stages with per-stage level, time, and curve controls, per-slope quantiser with 19 scales, and selectable output ranges.387

Capabilities 4

Envelope Generatorenvelope-generator
Each of the 4 channels can act as a multi-stage envelope generator (Env mode) with up to 13 stages, sustain, and assignable CV modulation.387
LFOlfo
Each of the 4 channels can operate as a free-running LFO (Loop mode) with up to 13 stages defining complex waveforms.387
Quantiserquantiser
Per-slope quantiser with 19 different scales including Chromatic, Major, Minor, modes, pentatonic, and more. Can be assigned to a CV input.387
Step Sequencerstep-sequencer
Each of the 4 channels can act as a step sequencer (Step mode) with up to 13 stages, per-step level and time, and a built-in quantiser with 19 scales.387

Jacks 13 — 8 in / 5 out

NameSignalVoltageDescription
Inputs (8)
CV1cv387
CV2cv387
CV3cv387
CV4cv387
In1gate≥1VTrigger/gate input for slope 1. Normalled to In2, In3, In4 if those are unpatched. Starts Env mode, advances Step mode, or resets Loop mode.387
In2gate387
In3gate387
In4gate387
Outputs (5)
EOC/EOS trigger outputtrigger≤5V387
Out1cvCV output for slope 1. Voltage depends on the set output range (+/-): 0-5V unipolar, ±5V bipolar, or 0-2.5V half-range.387
Out2cv387
Out3cv387
Out4cv387

Parameters 13

NameTypeRangeBehavior
CurveknobSets the shape of the voltage curve from logarithmic (fully CCW) to linear (12 o'clock) to exponential (fully CW).387
EOCbuttonEnables/disables a 200ms trigger output every time one of the selected slope's stages ends. If multiple slopes have EOC on, the output triggers when any stage of any enabled slope ends.387
EOSbuttonEnables/disables a 200ms trigger every time the last stage of the selected slope ends. If multiple slopes have EOS on, the output triggers when the last stage of any enabled slope ends.387
EndbuttonHold End and use ← → to set the last active stage of the currently selected slope.387
LevelfaderSets the maximum output CV the stage will reach. The actual voltage depends on the output range (+/-) set for the slope. Can be assigned to a CV input.387
Output Range (+/-)buttonPressing toggles between Unipolar 0-5V (LED lit) and Bipolar ±5V (LED off). Press and hold sets half-range Unipolar 0-2.5V (LED flashing).387
QuantiserbuttonCycles through 19 available musical scales. LEDs show which notes the CV will snap to. Holding Quantiser and pressing Reset returns to no quantisation.387
ResetbuttonImmediately resets the sequence to the first stage in Env and Loop modes, or resets on the next received trigger in Step mode.387
SlopebuttonChanges the currently selected slope (indicated by associated LED). Each slope has independent mode, quantiser, output range, sustain stage, EOC and EOS settings.387
StartbuttonHold Start and use ← → to set the first active stage of the currently selected slope.387
SustainbuttonHold Sustain and use ← → to select a stage that will hold its output CV level for as long as the trigger/gate input remains above 1V. Only applies to Env mode.387
TimeknobSets the length of time the stage will take to reach its set level. Turning clockwise increases time. Can be assigned to a CV input.387
TypebuttonCycles through 3 available types (modes) for the currently selected slope: Env (one-shot envelope), Loop (free-running LFO), or Step (sequencer).387

Firmware history 1 version

VersionReleasedNotes
1002026-02-02387

References 2

  1. [387]
    ALM047 'Quaid Gigaslope' Operation Manualmanual
    verified 2026-05-15
  2. [388]
    ALM Busy Circuits Quaid Gigaslope product pageproduct_page
    verified 2026-05-15