Eurorack Reference
A citation-anchored reference for Eurorack synthesizer modules. Every spec, jack, parameter, and capability links to the source document that supports it. Manufacturer documents are archived; changes are surfaced.
- Modules
- 19
- Sources archived
- 39
- Last ingestion
- 2026-05-02
Modules
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A-110-1 Standard VCO
— Doepfer
10 HP
Voltage-controlled oscillator with approximately ten octave frequency range, producing four simultaneous waveforms: square, sawtooth, triangle, and sine.
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A-118 Noise / Random
— Doepfer
8 HP
Noise and random voltage generator producing white noise, colored noise, and random voltage.
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Just Friends
— Whimsical Raps (Mannequins)
14 HP
Six correlated slope generators with shared parameters. Configurable as AR/ASR/ARSR envelopes, quadrature and tempo-synced LFOs, polyrhythmic clocks, PWM gates, VCOs, staircase waveform generator, slew limiter, overtone/undertone VCOs, additive synthesis harmonic oscillator, subharmonics generator, internal FM synthesizer, noise generator, and more.
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Kastle (v1.5)
— Bastl Instruments
Kastle v1.5 is a mini modular synthesizer with a headphone output, 2 in/out ports for interfacing other gear, running on 3 AA batteries or USB power. It features a complex oscillator with 6 synthesis modes, a voltage-controllable LFO, and a stepped waveform generator inspired by the Rungler circuit.
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Loquelic Iteritas
— Noise Engineering
10 HP
Digital VCO with interpretations of three classic synthesis algorithms (VOSIM, summation synthesis, and phase modulation), with four tone controls and two pitch controls.
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MCO (mkII)
— ALM Busy Circuits
6 HP
Compact digital multi-voice VCO and voice module inspired by 90s/00s digital synths, offering 8 different fully featured synth voice engines in 6HP, with assignable CV inputs, built-in envelopes and LFOs, 4-voice chord support, dual audio outputs, and USB-C for firmware updates and wavetable upload.
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MFX
— ALM Busy Circuits
6 HP
Compact 6HP Eurorack stereo digital audio multi effects processor offering 17 different full featured effects programs plus a number of metering utilities.
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Maths
— Make Noise
20 HP
Analog computer designed for musical purposes. Generates linear, logarithmic, or exponential triggered or continuous functions; integrates, amplifies, attenuates, and inverts signals; adds, subtracts, and ORs up to 4 signals; generates analog signals from digital information and vice versa.
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Pamela's NEW Workout
— ALM Busy Circuits
8 HP
Compact programmable clocked modulation source providing 8 highly editable outputs producing various control voltage signals correlated and synced to a BPM based master clock.
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Plaits
— Mutable Instruments
Macro-oscillator with 16 synthesis models (two banks of 8), internal LPG and envelope, V/Oct tracking, and model selection CV. Each model exposes HARMONICS, TIMBRE, and MORPH controls with an AUX output carrying a variant or by-product signal.
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Rample
— Squarp Instruments
14 HP
4-voice sample player and audio processor with per-voice effects, CV/MIDI control, multi-layer support, and microSD card storage.
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René
— Make Noise
34 HP
Three-channel, three-dimensional Cartesian sequencer with memory for up to 64 complete STATEs. Features X/Red, Y/Green, and C/Orange (Cartesian) channels, each with CV and Gate outputs, independent program pages, and a Z-axis for state selection.
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Rhythmi
— Omnitone
12 HP
Rhythmi is a Eurorack drum sequencer that allows you to dial in your groove, and explore it by evolving the pattern and modulating the energy. It allows for rhythmic inspiration and creativity without the burden of step programming.
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Rings
— Mutable Instruments
14 HP
Rings is a resonator that transforms an external, unpitched excitation audio signal into a full-bodied pitched sound, using modal, sympathetic string, or inharmonic string synthesis techniques.
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Sealegs
— Intellijel
20 HP
Stereo character delay with reverb modeling three delay circuit types: tape, bucket brigade, and digital. Features per-model color controls, built-in modulator with 7 morphing waveshapes plus Wow & Flutter and envelope follower, highpass and lowpass filters in the feedback loop, built-in hiss and crackle noise, freeze functionality, and a spacious reverb with configurable insert position.
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Spherical Wavetable Navigator
— 4ms
26 HP
Six-channel spherical wavetable synthesizer with six VCOs, six LFOs/envelopes, stereo audio outputs, 12 built-in spherical wavetables plus up to 108 user-created wavetables, scale quantization, and 108 preset slots.
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Swells
— Intellijel
20 HP
Multi-model stereo reverb with 9 reverb models and built-in SWELL Generator envelope follower.
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Three Sisters
— Whimsical Raps (Mannequins)
10 HP
Three interrelated filters (LOW, CENTRE, HIGH) with linked cutoff frequency control via FREQ and SPAN, switchable between crossover and formant modes, with individual and global inputs/outputs.
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Ziggurat
— Acid Rain Technology
14 HP
4-channel performance quantizer that turns any combination of CV and gate signals into pitch voltages, with per-channel note mask, offset, root, range, slew, and chain sequencing.