The Eurorack modular synth format is one of the most exciting areas of music technology. Pioneered by Doepfer, there are now hundreds of brands offering compatible modules of all varieties. You can combine your choice of the best oscillators, filters and much more in order to create a unique, bespoke synth setup which perfectly suits your needs.
Eurorack modules offer the biggest range of options you can imagine, from basic analogue modules which replicate the sound of classic vintage synths, through to digital modules which allow you to explore completely new approaches to making music.
Whether you’re a beginner or a more experienced modular head, you can take your pick of the best modules from leading brands including Mutable Instruments and ALM Busy Circuits.
Our range also includes accessories, cases, patch cables and much more, allowing you to build and customise your perfect modular synth setup.
Adds 14 dedicated outputs and a Ring Mod to the already powerful Atlantix module.
The Atlx expander provides 16 additional jacks to the Atlantix, including: dedicated waveform outputs for A and B oscillators, filter outputs, and a ring modulator. Atlx adds many new possibilities for self-patching, advanced routing and connections to other modules.
Filter Outs
Lowpass
Highpass
Bandpass
Phazor
Ring Mod
X In
Y In
RING Out
Oscillators A/B Outs
Sine
Triangle
Saw
Square (w/ PWM on A)
Sub Square (A only)
Notes: AUTOPILOT 1U is an innovative tuner module. Tune your oscillators fast, just apply the AUTOPILOT 1U in between the pitch CV and apply the reference waveform. Previously available as a dual autotuner AUTOPILOT in 3U version (4hp) and now as a single autotuner 1U Intellijel format version (6hp).
440 A-note or 261.62 Hz C-note scales: selected mode saved on next power up
Tune your oscillators instantly, just apply the Autopilot in between the pitch CV and apply the reference wave
Play the reference note from your sequencer or CV keyboard. Now a single tap on the button tunes your oscillator to the closest A/C note.
Notes: The uFM is an oscillator module, that is focused on FM synthesis.
It's basically a two-operator FM synthesis, but with extended functionality: The operator waveforms can be either sine waves (classic FM), or four other different combinations of non-sinewave waveforms, that produce a much broader palette of sounds beyond the classic sinewave based FM synthesis.
The MOD DPT knob controls the modulation depth; in combination with a button press also the multiplier of the modulating operator can be defined.
Both parameters can be controlled also by CV and also via IMDI by MIDI controllers. The pitch can be controlled via 1V/octave CV or also via IMDI e.g. from a DAW
(For IMDI, see IMDI HEART for more info).
Additional to the normal audio output a suboctave output with a squarewave is provided, and a third output with the mix of the primary oscillator signal and the suboctave.
Quite a lot for such a tiny module, right?
Please note: These micro module needs a carrier, like the uBASE module. The cannot be mounted directly into an AE case.
Notes: Discover the new dimension of your sound design with the ultra-compact 2HP wide ADSR Envelope Generator in Eurorack format. This precise tool is specially designed for synth enthusiasts who don't want to miss out on professional dynamic control in their Eurorack system. Despite its small size, this ADSR generator offers a plethora of features that will take your soundscapes to the next level.
Compact design
With a width of only 2HP, this envelope generator fits seamlessly into any Eurorack setup without wasting valuable space.
Customise your sounds with full ADSR control - Attack, Decay, Sustain and Release can be intuitively adjusted to bring your sounds to life
There is also a built-in LED display that gives you real-time visual feedback on the current phase of the envelope. This way, you always have an overview of the dynamic progression of your sounds.
With the ability to choose between three timebase settings (S, M, and L), you can flexibly adjust the envelope time base to suit your musical needs. From fast, crisp pulses to long-drawn-out, atmospheric evolutions, expand your expressive possibilities.
Manual Trigger
A special highlight is the manual trigger button. This allows you to trigger the envelope independently of external signal sources, ideal for spontaneous performances or experimenting with new sound ideas.
Notes: Ustka ['ustka] is a simple passive expander module for the Ostrawa stereo mixing console. It offers direct access to four pairs of stereo signals before they are combined into the mixed signal at the output of Ostrawa.
Ustka's main application is interfacing with external multichannel devices like computer audio interfaces and hardware multitrack recorders.
For detailed description, please refer to the manual.
Features
Per-channel VCA direct outputs
Modular or line signal level
Technical details
Eurorack standard compliant
4hp wide, 31mm deep (including cable bracket)
Current draw: no current draw (passive device)
Notes: This module is divided between 3 functions, a 3 channel mixer, with 3 knobs the the singal together, this then passes in a dual analogue filter, a resonant 24db LPF and a non resonant 18db HPF, passing from there into a built in VCA.
Designed for musicians looking for versatile modulation in their Eurorack system, this LFO delivers a wide range of possibilities to make your soundscapes dynamic
Notes: Discover the flexibility in your sound design with our ultra-compact 2HP wide Sync LFO (Low-Frequency Oscillator) in Eurorack format. Designed for musicians looking for versatile modulation in their Eurorack system, this LFO delivers a wide range of possibilities to make your soundscapes dynamic. Despite its small size, this Sync LFO offers a wide range of features to help you reach your creative potential.
Compact design With a width of only 2HP, the Sync LFO can be seamlessly integrated into your Eurorack and saves valuable space for additional modules.
Unleash your creative freedom with manual control over the rate and waveform of the LFO. Whether it's slow, gentle modulations or fast, rhythmic oscillations, you're always in control of the character of your sound.
Synchronizable
Expand your sound spectrum with the LFO's synchronization function. Sync it with external beats to keep modulations perfectly in time and add precise rhythmic structure to your sound design.
With three different output waveforms - triangle, square and sine - the Sync LFO opens up a wide range of modulation possibilities. Choose the right shape to give your sounds the texture and movement you want.
Intuitive Performance
Easy-to-use controls make it easy to perform live or explore new sonic ideas. Create modular soundscapes with the Slimline Sync LFO and breathe life into your sounds.
Quadar is an analogue 4 channel slew rate limiter that can be used as an attack/release envelope generator
Notes: Want to smooth out attack and release on your signals, but don't want to sacrifice too much space in your case?
Quadar is an analogue 4 channel slew rate limiter that can be used as an attack/release envelope generator. Send in any signal to independently control the attack time and release time with the A and R knobs.
Technical Specs:
- 3U x 6HP x 25 mm deep
- Current Draw: 10mA @ 12V, 10mA @ -12V
What's in the box:
- 1x Quadar module
- 1x Power cable
- 2x Mounting screws
Scale your audio or CV sources and route them to various destinations with this versatile utility
Notes: Quad Attenuator/Inverter, Splitter, and Offset Generator
Scale your audio or CV sources and route them to various destinations with this versatile utility. It consists of four identical unity gain amplifiers. Each amplifier can multiply an incoming signal by values ranging from 0 to 1 (for attenuation) or from 0 to -1 (for inverting attenuation). The input of each channel is normalled to the input of the next channel, allowing for easy signal routing from one input to the subsequent ones.
The first channel is normalled to 10V, enabling the module to function as an offset generator when no input is connected.
Features
Inversion switch per channel.
Precise zero at the left side of the pots.
Four level LEDs indicate output level and polarity.
Cascaded input topology
Specs
Current needs: +12V: 60mA, -12: 50mA, 5v:0
Width: 4 HP
Depth: Assembled version 25 mm
Depth: DIY version 35 mm
Designed, kits prepared and modules assembled in Barcelona.
Notes: The PAN/XFADE module is a combined routing processor for creating panning and crossfades. The PAN/XFADE works either as a signal panner, meaning one input signal is moved continuously between the left and right output, or, in crossfade mode, where it blends between two input signals into one output. Of course controllable by CV; and working for audio signals as well as DC control voltages.
Vactrol response voltage controlled amplifier module in 4HP.
Notes: The Solar Gravity from SetonixSynth and Tidbit Audio is an analogue vactrol-based VCA designed to bring the lovely response of optocouplers into the realm of clean, performance-based Eurorack VCAs. Starting with this simple concept, the Solar Gravity utilizes some neat active circuitry to significantly reduce the bleed inherent in vactrol-based VCAs and to provide the user with lots of control over the level, direction, and response of incoming control voltage.
Though it's primarily designed for use with audio signals, the Solar Gravity can also be used to control the level of CV such as envelopes or stepped voltages with a unique vactrol response through its DC-coupled input.
Technical Specifications
Width: 4hp
Depth: 28mm
Peak Current Draw: 16mA @ +12V, 18mA @ -12V
Input Impedance (All Inputs): 100kO
Output Impedance: 1kO
AC Input Cutoff Frequency (-3dB High Pass): 5 Hz approx.
Notes: Dive deep into the world of sound manipulation with our Slimline Voltage Controlled Filter in a space-saving 2HP modular format. This module is ideal for all synthesizer lovers who are looking for intense and precise filter control in a compact design. Its powerful features allow you to shape your sounds with impressive detail.
Notes: Combine up to four audio and or CV sources into one output, with independent manual level control.
It can be used as a four-channel mixer or as two separate two-channel mixers, depending on the connection.
If a cable is connected to the Master output but not to the 1+2 output, all channels will be summed at the Master output. If both the Master and 1+2 outputs are connected, the Master will output the mix of channels 3 and 4, while the 1+2 output will provide the mix of channels 1 and 2.
Each pair of channels has an LED indicator that shows the presence of a signal.
Notes: The IMDI HEART module is the central module for using IMDI (the "internal MIDI" transmision) within AE modular.
It receives MIDI, either by a TRS adapter, or via USB-C (the module appears as Class-compliant MIDI device on a computer); the incoming data is splitted up to 16 outputs carrying IMDI data. Each output contains the information of one (or more) MIDI channel(s) and a freely assignable note range, in the standard MIDI data rate or at a much higher data rate. Realtime data, like MIDI start/stop/clock is provided as gate/trigger outputs; the 1/96th clock can be divided to other, slower clock rates.
The outputs can drive then modules that can receive IMDI, like the micro oscillators (uOSC, uFM, uPOLY) and other upcoming IMDI capable modules.
The 16 chains of IMDI controlled modules you get with IMDI HEART is enough for quite complex setups, so in most cases, one IMDI HEART will be enough.
Notes: The uS&H / RANDOM / NOISE module combines several functionalities for (pseudo) random control; it includes two sample & holds (one of them can be switched to track & hold) and a random/noise section. The latter can be switched between two types of random CV (stepped / smoothed), these either at an internal, tapped rate or an external clock.
Please note: These micro modules need a carrier, like the uBASE module. They cannot be mounted directly into an AE case.
Notes: Passive Performance Attenuator and Mute with Reversible Front Panel
The mApnea is designed in cooperation with Rakt to create a simple, modular and extensible utility mixing system. The features are numerous and the use cases multitudes, among them:
Apnea-style performance mute for quick and silent muting of both audio and control signals during performance.
Long slide attenuator for fine attenuation control.
Reversible front panel and slide pot: easily flip the orientation of the double-sided front panel, or switch the direction of the slide pot with a microswitch on the back.
Passive design and 2hp width makes integration easy and flexible in any system, even in an auxiliary pod.
Integrates seamlessly with audio interfaces, mixers and other modules: combine them with any module like the Expert Sleepers ES-9 or Herzlich Labs Active Mix to create performance mixers of any size, or use it alone as a performance attenuator or master volume control.
Why bother shopping for one massive performance mixer after the other, when you can simply build the exact solution to match your needs, with Herzlich Labs.
Notes: Now slimmed down to 2HP! The '07 is a precision buffered multiple, perfect for your 1V/O sources. An LED on each channel indicates positive or negative incoming voltage: red is positive, green is negative. Channel one cascades into channel two, giving you up to 7 outputs.
Notes: DRUMKIT 010 consists of 11 8-bit drum sound samples; 6 of them can be triggered in parallel in any combination by the trigger inputs. With a BANK selector knob, different combinations of the 11 samples can be selected. The PITCH knob affects the pitch of all instruments together, and with the REVERSE button the sounds are played backwards - quite a nice effect to be added here and there.
By design, this is a nasty, lo-fi drum sound source, but definitely with its own character. It works great together with the analogue KICK module.
7Path is a pair of modules that can connect two points in your system, or two different systems together via an ethernet cable
Notes: Connect Eurorack Cases without long patch cables. Great for jams and large systems.
7Path is a pair of modules that can connect two points in your system, or two different systems together via an ethernet cable. Think of it like a patch cable extension cord: instead of 7 long patch cables, you just have 1 ethernet cable! 7Path allows patching of any type of eurorack signal to be passed between the modules. There is no restriction for using only input or output signals on the modules, you can have combinations of both.
The jack numbers between the modules are 1-1. Thus, a signal you patch to the #4 jack of a 7Path module will be available on #4 jack of the other 7Path module!
Technical Specs:
- 4HP x 3U x 20mm deep
- Passive module (no power required)
- Supports signals up to 10ft (unshielded ethernet cable, more if shielded)
What's in the box:
- 2x 7Path modules
- 4x Mounting screws
Note: Does not include ethernet cable
Notes: The MA808 is a Eurorack module that recreates the TR-808's analogue Maracas drum voice and white noise generator at a low cost, expanding your Tiptop Audio modular drum machine. It features a fluffy, harmonically rich sound that enhances Hi-Hats dynamics. The Attack control knob allows adjustments from sharp Hi-Hat to slow-rise Maracas, with a marker for the original 808 setting.
The MA808 also includes the 808's continuous analogue white noise generator, ideal for creating custom drum sounds or general white noise use. It faithfully reproduces the original 1980s circuit and includes a high-powered gain stage for hot, distortable signals. The dual input pulse-shaper ensures stable triggering from various pulse sources, making the MA808 an easy and powerful addition to any modular synth setup.
Notes: Module A-165-2 includes six modification circuits for digital signals (clock, gate, trigger, start, stop etc.) which are derived from the two input signals Input 1 und 2:
inverted signal of Input 1 (labelled 1)
inverted signal of Input 2 (labelled 2)
T flipflop (toggle flipflop), controlled by Input 1, this output changes it's state whenever a the rising edge of Input 1 appears (labelled 1/2, as it works similar to a 1:2 frequency divider)
Set/Reset flipflop, this output changes it's state to "high" during the rising edge of Input 1 and turns "low" during the rising edge of Input 2 (labelled RS)
inverted output of the Set/Reset flipflop (labelled RS)
pulse output, during both the rising and falling edge of Input 1 a short trigger pulse with about 50 ms lenght is generated (labelled with the sign ± and a rectangle pulse symbol)
The outputs 2, 1/2, RS and the pulse output are equipped with LEDs that display the state of the output in question.
The output level for all six outputs can be set to 0/+5V or 0/+11V by means of a jumper on the pc board.
Voltage thresholds for the input voltages:
voltages below +0,8 V are treated as "low"
voltages above +3 V are treated as "high"
Typical applications
starting and/or stopping of events or switching operations with the RS or RS output (e.g. controlled by the trigger outputs of a sequencer, e.g. in combination with electronic switches)
generation of inverted digital signals
frequency division (1/2 output)
generation of short pulses during the rising and falling edge of a digital signal (e.g. triggering an envelope at both rising and falling edge of a gate signal).
Technical notes
The module cannot be used for bipolar signals! The negative share of the input signal will be clipped by means of a so-called clipping diode at the input of module A-165-2. This may affect the output circuitry of the module connected to the A-165-2 (depends upon the details of the output circuit and if it is protected against clipping). For the planned field of application that's normally no limitation because these signals (clock, gate, trigger) work usually only with positive voltages.
The module can be used for analog signals only to a limited extend! With analog signals the inputs of the module work as comparators and the negative share of the input signal is clipped (as mentioned above).
Width: 2HP / 10.0 mm
Depth: ? mm (measured from the rear side of the front panel)
Current: +?mA (+12V) / -?mA (-12V)
Four channels CV/Audio polarising mixer module in 6HP.
Notes:
Q^Mix
4 channels CV/Audio polarising mixer
Q^Mix is a four-channel CV and audio mixer designed to take simple signals and combine them into something altogether new.
The four DC-coupled inputs feature a switch that selects between linear attenuation or bi-polar attenuversion.
Q^Mix can be used to sum simple signals to create much more complex results.
perfect for use as a final volume control when used as an audio mixer.
Technical Specifications
All inputs are DC-coupled.
Four-channel audio and CV mixer.
Logarithmic attenuation on the output stage.
Input impedance: 100k for all inputs.
Noise filtering and resettable fuses on the module's power input.
Reverse current protection.
Dimensions
Width
: 6HP
Depth
: 10mm
Current Draw
+12V
: 5mA
-12V
: 5mA
Notes: 2^VCA is a dual vca module in 1u Intellijel format.
Both of the VCA's are normlised so it can be used a stereo VCA, as a dual mono VCA , mono to stereo VCA and many more combinations.
Technical Specifications
1u Intellijel format
Noise filtering and resettable fuses on the module's power input.
Reverse current protection.
Dimensions
Width
: 12HP
Depth
: 20mm
Current Draw
+12V
: 10mA
-12V
: 10mA
Notes: S&M is a very useful utility module in 1u Intellijel format combining unity mixer and a precision active buffer.
CV and Audio Mixer
Audio grade dc-coupled unity mixer for mixing CV or Audio signals
Active Buffer/Splitter
Precision active buffer/splitter for splitting signals along your system without any signal loss (highly recommended for splitting Pitch CV).
Reverse polarity protection
The module have proper reverse current and over current protection in its power input stage to protect the module in case it was connected the wrong way or connected to a faulty power supply.
Dimensions
Width
: 12HP
Depth
: 20mm
Current Draw
+12V
: 10mA
-12V
: 10mA
A compact 1U noise source which contains two separate noise circuits
Notes: SetonixSynth Sands Of Time 1U Filtered Noise Source Module
The SetonixSynth Sands of Time is a compact 1U noise source which contains two separate noise circuits: a transistor-based analog noise generator similar to those used in many classic modular synth systems of the '60s and '70s, and a CMOS logic-based fixed oscillator bank as found in some of the great drum machines of the '80s, particularly of the TR series.
Either or both of these noise sources may be routed to a sweepable active bandpass filter, perfect for shaping the noise into many different "flavors," from low-frequency rumble, to chest-thumping midrange snare source, to hissing raw hi-hat noise and everything in between.
In a very small package, the Sands of Time provides a full palette of audio frequencies and Noise-like sounds which are useful in many popular patching techniques, especially analog drum patches and "Noise Walls" along with the generation of pseudo-random voltages for use with Sample & Holds, slew generators, and more.
Though it demands just 10hp of 1U rack space, the Sands of Time is still a useful and diverse noise source with some "oomph," a crucial yet often overlooked addition to any setup or patch.
Width: 10 hp (Intellijel 1U format)
Depth: 35 mm
Peak Current Draw: 25 mA @ +12V, 25mA @ -12V
Notes: Intellijel have created a 1U version of the handy Atlantix Expander. It is exactly like the 3U version but arranged to fit in a 1U space. Comes with a cable for connecting to the Atlantix.
A module dedicated to panning and balancing, with a long and smoothly controlled fader
Notes: The Pivot is a simple module, dedicated to doing one thing really well: panning and balancing.
The long and smoothly controlled fader makes it easy to strike the right balance between the input and the two outputs, which continuously share each their portion of the input signal. With input buffering and a dual-gang potentiometer, the signal for one channel will fully close at either extreme end and perform with perfect consistency when you need it most.
Use it for panning, wet/dry control, transitioning between different audio or CV destinations - or even just as an attenuator in a pinch. The Pivot isn't the most complicated panner and balance mixer on the market, but rock solid build quality, design and component choices make it a reliable companion in any performance setup.
Notes: For once, there isn't much to say - what you see is exactly what you get. Four passive attenuators, in 4hp. Perhaps the most useful utility in any system, and here, you get four of them! Fully open, fully closed, or somewhere in between, Qatt will put your signal exactly where you want it to be.
Notes: +/-18dB is an active amplifier module, capable to amplify or attenuate signals up to +/-18 decibels.
The circuit is highly optimized to work well both with audio and CV signals.
It is useful in the following situations:
- to amplify audio signals from various external sources like IPODs IPADs, portable recorders, desktop synths or drum machines to eurorack levels.
- to amplify CV signals to produce stronger modulations. For example applying a slew limiter with long attack and decay times to noise, will reduce the amplitude of the resulted signal so in many cases you may need to amplify it to produce the right modulations.
- to clip signals. For example transform a triangle signal to a trapezoid signal.
- to change the shape of an ADSR. You can clip the point where the Attack meets the Decay and modulate the audio VCA to produce a more impactful sound.
- and many more applications.
Unity amplification (what goes in equals what goes out) is when the potentiometer is at the 0 position.
+/-18dB is for line level signals so it is not optimal for microphone level signals.
CMS-LAB module
Tech specs:
-Width: 4HP
-35mm depth behind the panel
-Standard 10 pin euro power (+12V / -12V)
-Power consumption: e+12V 10mA , -12V 10mA
B-STOCK: Box opened, product in perfect working order
Notes: ***B-STOCK: Box opened, product in perfect working order***
'Multiples' are the classic solution to a common problem in modular synthesisers: how to distribute one output signal to multiple inputs. Simple passive multiples consist of several sockets, wired together.
Link 2 is a buffered multiples module. Each output is independently buffered using active electronics. This avoids many of the problems with passive multiples: signal cuts when patching cables, loading effects when driving many inputs etc. The high-end components provide exceptionally low noise and distortion, making Link 2 suitable for audio, CVs and gates/triggers. And unlike most buffered multiples modules currently available, it retains the accuracy of pitch control voltages to the last cent.
With only the top input socket in use, the signal is sent to all 6 outputs. Plugging a cable into the bottom input socket separates Link 2 into dual 3-way multiples, adding flexibility to your patching.
Notes: ADDAC219IN was designed to replace bulky 1/4 inch jacks when plugging external stereo gear into the modular realm.
Using a 3.5mm TRS stereo jack input, the module splits the TRS stereo signal into 2 mono outputs (Left + Right) while also converting the line input to synth level.
There are 2 independent sections allowing for two stereo sources to be connected.
Dual analogue voltage controller low frequency oscillator module in 4HP.
Notes:
2^LFO
Dual Analog VC-LFO
2^LFO is a dual analog VC-LFO Eurorack module, each LFO unit consists of two outputs of square and triangle that can be used simultaneously.
From LFO to Audio-Rate
Three variable rates range from super slow modulation of 20 seconds to super fast audio-rate of 700hz.
Control the speed
CV input for external control of the modulation rate.
No light bleed
Custom made light bleed blocker to prevent indicator light to bleed to other modules.
Reverse polarity protection
The module have proper reverse current and over current protection in its power input stage to protect the module in case it was connected the wrong way or connected to a faulty power supply.
Dimensions
Width
: 4HP
Depth
: 10mm
Current Draw
+12V
: 10mA
-12V
: 10mA
Lopas is a great, compact solution for your passive filtering need
Notes: Have some noisy modules in your case? Or maybe you're just looking to attenuate your sound for a different vibe. Whatever your case, Lopas is a great, compact solution for your passive filtering needs. Lopas has 5 passive low-pass filters each with a different cutoff frequency (10k, 5k, 1k, 500, 100) at -6dB/octave. Lopas has NO resonance making it great for reducing unwanted harsh frequencies without sacrificing a VCF.
Technical specs:
3U x 4HP x 20 mm deep.
Passive Module -- No power required!
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