Synth modules

Notes: In only 12hp, Axis condenses all the classical blocks for the audio amplitude management, redefining the classical envelope -> vca -> mixer path. The idea is to manipulate a sound over three axes: its length, its volume, and its place inside the stereo field.

Axis is a dual envelope generator that features an integrated VCA, a crossfader, and a voltage-controllable mixer section. The initial concept was to combine digital control over an analog VCA to closely emulate the classic Vactrol sound. After more than a year of refinement, Axis has evolved into more than just that. It offers exceptional versatility, providing a wide range of waveforms and the unique capability to simulate the natural percussive qualities of different materials. All this is in a complete analog path.

For the function generator section, we choose a faster method over the classic AD/ ADSR style: a selection of waveforms studied to give back a precise musical effect can be selected with the shape knob. The function length is independent from the actual wave shape and can be settled with the fader timeX from 30hz to 15 seconds. Also, setting the timeX fader at its maximum level will leave the VCA open.

A more typical collection of envelopes can be found in the first half of the dial. All kinds of sounds, from plucked notes to long volume swells passing through lead-friendly lines, can be obtained here.

More unusual, the last section of the knob is thought to simulate the acoustic vibration of a percussed object. Starting with a triangular envelope, from this point on, the more you turn the knob, the more rebounds will be added, simulating the natural ring of a material. Using this section at low rates can generate complex envelopes that could also be suitable for the vibrato-style AM effect. The envelope generator section includes a mode switch (cycle,trigger,hold), a trigger/gate input, an EOC trigger out, a function output, a CV for the envelope shape selection, and one CV for time.

As a cherry on the cake, a crossfader is placed at the end of the chain, blending both Axis halves. With a dedicated fader and CV control, raising it will invert the L/R output, creating nice stereo effects or moving the voices around the stereo field.

The VCA section is more straightforward: it has an audio input/output[1] and a VCA CV input[3].

You can plug the audio I/O to use Axis in its completeness and eliminate a lot of cables and mess!

Soundwise, here at Clank, we are all about vactrols LPGs, but since we knew it's not the most versatile option on the market, we came up with a different design. Blending together a VCA with a not-so-step filter, we obtained a VCA with a nice mild LPG flavor: enough to sound not so "clicky" but not too slow to inficiate really fast sounds.

By default, the envelope created by the function generator is normalized to the CV in of the VCA. Plugging a cable into the VCA in breaks the normalization, in this way you can use a different source to control the VCA and free the function generator for LFOs or modulation duties.

The range Y fader sets the strength of the envelope, but you can also see this control as a volume fader, which is nice since you won't necessarily need an additional volume for your voice after the Axis. Take into consideration that since the Axis VCA is actually a low-pass gate, lowering the rangeY fader also affects the cutoff frequency. The range fader also has its CV control to program dynamic changes to the sound. Basically, it's a VCA over a VCA that permits every note to be at different intensities. Last but not least, Range CV can also be fed by a unipolar modulation CV to obtain vibrato effects or audio rate AM modulations

Notes: Thererec is a 6hp smart dual-function generator based on a different approach! Two modern proximity sensors have replaced all the Attack/Decay thing, and this not only saved a lot of space but also turned Thererec into a whole new thing: a fusion between THEREmin gestural expressiveness and a tape RECorder,

Thererec, indeed, can quickly capture your hand movements and translate them into complex Envelopes and LFOs, adding a lot of expressiveness to your set. Once recorded, your movements can be mangled in both time and amplitude; they can be cycled or triggered in one-shot mode, letting you create complex but synchronized control voltage streams.

A straightforward movement with immediate feedback: move your fingers, listen, and connect yourself to the environment. Your body will do the rest.

Thererec sensors will track your movements to generate a voltage flow, and the LEDs and the CV outputs will reflect those movements.

Notes: Foxtrot is a quad, multimode virtual analogue filter with three different classic filter types.

Each of the four filter channels can be:

1) A ladder filter, based on the classic MOOG designs from the '60 and '70s
2) A Sallen-and-Key filter based on the Korg 35 module used in the MS-20
3) A State Variable filter as used in the Oberheim SEM

Each filter type produces Low Pass, Band Pass and High Pass responses which can be morphed between using the front panel control or CV.

In addition, any or all of the filter channels can be linked together internally producing a parallel filter bank controlled by a single cut-off control or CV. Check out some of the examples for how amazing this sounds.

The AUX CV input can be switched to allow CV control of the filter response, resonance or pan of each filter channel's dual outputs.

Finally, each filter can be overdriven to accentuate the unique sound of each filter type.

Specifications:
Width: 38HP
Depth: 22mm excl. power cable. Approx 32mm inc. shrouded power cable
Power Requirements:
+12v: 250mA
-12v: 100mA
+5v: 0mA

Inputs:
Signal (Zero attenuation): +/-5v nominal, +/-12v max
Cut-off CV (Zero attenuation): 0-5v nominal
AUX CV (Zero attenuation): +/-5v nominal

Outputs:
Dual Outputs: +/-5v nominal, +/-10v max

Notes: Oscar DSF is a complex, stereo Voltage Controlled Oscillator, based on the mathematics of Discrete Summation Formulae.

The Discrete Summation Formula used in Oscar DSF produces sounds rich in harmonics (or 'partials') in a similar way to FM.

The mathematics of DSFs is more complex than FM, but the way that you, the user, get the sounds you want is usually simpler. The basic sound is controlled by just two, intuitive knobs (with CVs, of course).

Oscar DSF can sound like a traditional oscillator, and it can make the usual clangs and tings associated with FM oscillators. It can handle fat bass sounds, or evolving ambient drones.

Oscar DSF has two complete DSF based, complex oscillators, controlled by the same basic pitch CV, but with a pitch offset control which can detune one oscillator up to i1 octave.

The output of the each oscillator passes through another complex FM stage, which acts like a wave folder. Technically, it's actually an FM operator with the carrier frequency set to zero. It sounds great, whatever you call it.

The final piece of the signal chain is a simple VCA, allowing Oscar DSF to be used as a stand alone synth voice with the addition of an envelope generator, or some other source of modulation.

Specifications:

Width: 10HP
Depth: 22mm excl. power cable. Approx 32mm inc. shrouded power cable
Power Requirements:
+12v: 200mA
-12v: 50mA
+5v: 0mA

Inputs:

VPO (Zero attenuation): 1 volt per octave
PAR CV[Zero attenuation]: +/-5v nominal
FOLD CV [Zero attenuation]: +/-5v nominal
PAN CV [Zero attenuation]: +/-5v nominal

Outputs:
Dual/Stereo: +/-5v nominal, +/-11v max

Notes: Alpha Duo is a stereo precision VCA with ring modulation, overdrive and distortion.

Alpha Duo's VCAs have three modes:

1) Two quadrant, for classic VCA behaviour
2) Four quadrant, where the VCA responds to both positive and negative Gain CVs. This creates a classic ring modulator.
3) In four quadrant separate (4S) mode, each of the two VCA channels is controlled by separate gain CVs, turning Alpha Duo into two independent VCA/ring modulators.

Alpha Duo also features three drive modes.

1) In Drive Mode zero the overdrive circuit is not active, giving a clean signal.
2) Drive Mode One is a tube style soft overdrive. Like a tube, the positive and negative parts of the waveform are distorted differently, producing a pleasing, warm fuzz.
3) Drive Mode Two is a harder clip - more like a transistor amplifier - for a harder edged distortion.

Alpha Duo's signal path is DC coupled, so it's great for processing CVs as well as audio.

Specifications:
Width: 10HP
Depth: 22mm excl. power cable. Approx 32mm inc. shrouded power cable
Power Requirements:
+12v: 200mA
-12v: 50mA
+5v: 0mA

Inputs:
Signal (Zero attenuation): +/-5v nominal, +/-12v max
GainCV [Zero attenuation]: +/-5v nominal
Pan CV [Zero attenuation]: +/-5v nominal

Outputs:
Dual/Stereo: +/-5v nominal, +/-11v max

Notes: SWEnigiser Proto VCF/A

Enigiser multimode filter and VCA in 12hp. Circuit based on originalEnigiser prototype kindly loaned by Anthony Linell of Northern Electronics.

VCF
Unique configuration with 3 x 4 filter modes
2x audio input with drive
2x cutoff CV attenuverter inputs
1x cutoff CV input, tunable to 1v/oct

VCF output normalized to VCA input.

VCA
1x audio input with gritty drive, normalized from VCF output
2x CV input. CV1 knob adds offset for drone etc.
CLIP switch for old/new revision Enigiser diode setting adjusting drive character.
+12V 22mA
-12V 22mA
Skiff friendly
Includes power cable, 4 screws+ plastic washers

Available in sand blasted silver and black panel versions.

Notes: At its heart, Alpha Pro is four identical VCAs, each with overdrive and stereo outputs. However, it's also possible to link any of the VCAs together to form a voltage controlled mixer. This flexibility allows Alpha Pro to replace a bank of VCAs, sub-mixers and even your output mixer.

Each VCA has two Signal inputs and a summing mixer with individual attenuators.

There are two mix buses, allowing each VCA to act stand-alone or as part of the mix. So you can configure two separate sub-mixes, with any of the VCAs contributing to the mix, or use all channels to make an 8 input, stereo output main mix.

The VCA gain is controlled by the Initial Gain knob, and two Gain CVs - again mixed together, each with an attenuator. Having two Gain CV inputs allows for more complex modulation possibilities without needing another CV sub-mixer.

Gain response can be set to exponential or linear.

The XING switch enables zero crossing detection to prevent clicks on very fast CV inputs.

Two drive modes are available, a soft clip and a harder fuzz, with the DRIVE control increasing the gain into the overdrive circuit to increase the effect.

The VCA output is stereo, with manual and CV control of pan - again, with an attenuator.

Alpha Pro is available now as a 'founders edition' which includes the Alpha Switch as standard.

Specifications:
Width: 38HP
Depth: 22mm excl. power cable. Approx 32mm inc. shrouded power cable

Power Requirements:
+12v: 250mA
-12v: 100mA
+5v: 0mA

Inputs:
Signal (Zero attenuation): +/-5v nominal, +/-12v max
Gain CV (Zero attenuation): 0-5v nominal
Pan CV (Zero attenuation): +/-5v nominal

Outputs:
Stereo: +/-5v nominal, +/-10v max
With Drive Modes 1&2 outputs are normalised to around +/-5v max

Notes: The name, indeed, comes from ancient Greek mythology since Proteo was a shapeshifter who could assume whatever shapes he preferred. In this way, our Proteo, has not a precise sound on its own but a clever mechanism that permits to acquire and transform every signal into waveforms. What if you can use your envelopes, LFOs or any other signal as a sound source?

What sets it apart from other oscillators? What's very different in Proteo is its internal pseudo-tape recorder, which is capable of continuously acquiring and transforming any external signal into waveforms and morphing them from a basic sine.

In Proteo, waveforms are not a static digital representation of a sound; they can continuously evolve in a very organic way, and tape loop time is a fundamental factor: changing it will drastically affect the resulting output even with the same sources at the inputs. Slowing down the time will capture a bigger portion of the incoming source with more harmonics. As a result, increasing it allows to capture up to low audio rate signals or really small fragments of the signal.

Exploring the interaction between Proteo, the sources and the time will force you to change your mind about how sounds and harmonics can be generated: visualizing how different shapes can sound and looking for new sources to generate YOUR waveform is the fundamental idea behind Proteo.

Proteo is also stereo, thanks to the Span knob you can easily detune one oscillator from the other to create nice stereo effects. Beside the common pitch the two oscillators have independent acquisition paths and morph controls, each one can emit different waveform.

Notes: Toolbox is the newest essential utility module for your modular system. It's designed to summarize and replace all those necessary small one-function modules, often overlooked due to their space and cost requirements. With a compact 12hp design, it offers a comprehensive selection of carefully curated blocks to expand and enhance the potential of every patch. The module is also specifically designed for internal interaction, allowing the combination of various basic blocks to achieve compelling outcomes, from complex rhythm creation to unusual sound shaper. Every system needs a Toolbox!

Since VCAs are always not enough, the first two blocks on the top row consist of two linear and very fast VCAs, which are also great for AM modulation. They are arranged from left to right: input (DC coupled), control voltage input (ranging from 0 to 8V), and output. The two inputs and control voltages are normalized from left to right, facilitating easy stereo operation. These VCAs, designed primarily for voltage attenuation, are versatile tools that excel in scenarios requiring linear response. With audio, their true strengths shine when applied to amplitude modulation (AM) scenarios, where the benefits of linear control become quite significant. Although they are optimized for AM and voltage control, using exponential envelopes with these VCAs can transform them into two highly effective and fast VCAs for audio applications.

The threshold CV (0-8V) is crucial for the functionality of the blocks labeled with an asterisk (*): AND/OR gates, sequential switches, and flip-flops. By default, the threshold for each block (the voltage that must be reached at every input for the circuit to operate) is set very low, allowing almost any positive signal to be used. By increasing the threshold with an external voltage, you will change the point at which the circuits marked with the * begin to operate. This may seem a little tricky at first, but once you master all the functionality of the Toolbox, the Threshold CV rarely found in other Eurorack modules will open up many more possibilities!

Still composed of two identical parts, the second and third rows contain two blocks of two-channel summing (A & B). This region offers many ways to combine two signals. From left to right, input A, B, SUM out inverted SUM out, and two Boolean operators: AND/OR While any input signal can be used here, the first two outputs are primarily intended for audio sources. In contrast, the Boolean outputs are more suitable for summing gates and logic signals. This setup also allows for the use of both logic and analog signals together; don't hesitate to experiment with Boolean operators using analog or audio signals.For example, connecting two different LFOs to the input of the summing section can create many gate rhythms from the two Boolean outputs by varying the threshold with external voltages.

Summing mixers/Mult Out: This section consists of two 3-input summing mixers connected in series: the output of the upper mixer is routed to the first input of the lower mixer, allowing you to combine a total of five signals with two outputs available. To break this connection, insert a patch cable into the first input of the lower mixer. This action separates the two sections, enabling you to sum two sets of three signals each. Additionally, the lower section includes a multed output by default.

A bidirectional sequential switch is located at the center of the module and labeled with three "I/O" tags. This often overlooked component allows for a wide range of functions, from the most practical to the most creative. When a voltage exceeding the threshold level is applied to the * input, the switch connects the upper left jack to the lower right one. If the voltage is below the threshold, the lower left jack is connected instead. Being bidirectional, each I/O can function as both an input and an output, enabling a 2:1 or 1:2 configuration. Try using the switch at audio rate; this can function as a versatile oscillator waveform shaper. Think of something other than this block as a simple channel switcher!

On the right side of the sequential switch, we have a more classic block: the flip-flop. This block outputs a square wave at half the frequency of any signal applied to the input, whether audio or gate. Two flip-flops are available, which can be used individually or normalized in series. This block is handy for creating sub-octaves of square format from any sound or as a clock divider.

Offset / Attenuverters: Located at the bottom are two offset and attenuverting channels.This section comprises two identical blocks that can easily attenuate, invert, and offset any input signal. Each block features an input jack, one output, and two small knobs. The first knob functions as an attenuverter, allowing you to invert and scale the signal at the same moment. The second knob, the offset, adds a static voltage of +/-0-8V to the resulting output. This functionality is crucial when seeking a more refined control over voltage or a signal. Without any signal at the input, you can use the offset knob as a manual control generator for any control voltage (CV) in your system. For example, try to change the threshold with it.

Notes: Chaos is excellent for modulation purposes or as a clock multiplier/ divider, but that's only scratching the surface... It takes a different approach to writing sequences than traditional sequencers, as it is built on six touring machines combined with an effective pattern and clock generator. One of the biggest challenges in electronic music production, especially when it comes to sequencing, is finding that sweet spot between hands-on control and possibilities.

It can be frustrating because many sequencers with lots of fun and playable controls don't always pack the punch you need. On the flip side, you have those bigger menu-based sequencers with tons of options but can feel overwhelming with all the programming they require. It's designed to help you overcome these challenges and make your music-making experience smoother and more enjoyable, whether you're jamming or writing a song you want to execute live.

Typically, a sequencer starts with a blank canvas. However, with Chaos, you begin with all possibilities at your disposal and can easily narrow them down to fit your vision with just a few adjustments. This makes creating a sequence that conveys a specific mood quick and straightforward. Once you have established this initial mood, you can loop it from the last step to step 32 whenever you hear something you like. At this point, you can choose to modify the entire loop or adjust the parameters of any individual step. There is no need for extensive menu navigation; simply pressing a button and turning the encoder gives you control over parameters such as gate time, gate probability, gate width, gate ratcheting, gate swing, notes, scale, slew, and slew amount.

The LED bar continuously displays the voltage output of the selected channel, as well as the gate and each parameter's value, eliminating the need for a screen. You can save and recall the entire sequence of its six channels at any time. Additionally, there is an internal function that allows you to randomize all parameters or just a select few within a specified range, helping you discover new melodies to work with.

Chaos is an endless reservoir of tunes and is incredibly quick and powerful for composing sequences, gate patterns, or modulation. In a short time, it will become the brain of your system.

Six CV outputs can be used for a wide range of applications; everything from chaotic modulations to fine-tuned sequences can be obtained. Thanks to its interface you can quickly adjust the voltages from where the random engine picks new values and then edit them in every aspect.In addition, Slew amount, Quantization, and external sampling are available on every channel.

Thanks to its 6 gate outputs, Chaos can be used as your system's quick and effective clock manager and gate pattern generator. Chaos also provides a stable master clock (10mS to 10Sec) from a separate output and can be clocked from external devices. On every channel, you can set Probability, Width, Swing, Ratcheting, and Time as a multiplier/divider of the master clock or unquantized in mS.

You can freeze the last 1 to 32 steps of randomly generated CVs and Gates in a locked loop when you hear something you like. Loops are not static; every parameter of Chaos can be used again to change the loop behavior in a non-destructive way.

Entering sequencer mode means taking control of every aspect of the looped sequence generated by the random engine. You can change time, width, probability, ratcheting, slew, slew amount, note, note deviation, etc., for each of the 32 steps of all six channels.

Thanks to the external input, you can substitute the random generator with external voltages, transpose a sequence on the fly, and a lot more.

If you're more into generative stuff or want to add a bit of craziness to the patch, you can use the Chaos function to randomize all the parameters on a channel. A sophisticated control named entropy is available on every parameter to set the distance of the new value from the last one.

Chaos can save and recall 10 slots where you can save entire sets or preferred channel behavior. Recall can also be done with an external voltage.

Notes: Sibilla is a DSP digital stereo oscillator that aims to translate into music the beauty and harshness of a semi-barren mountain. Its sound is sculpted by various saw and sine waves running through intricate delay networks, altered by LFOs, white noises and creating constructive and destructive interferences.

Both stereo channels are the output stages of two feedback audio loops.

Each loop is made up by a main sub sinusoidal wave oscillator and two saw and sine waves with frequencies affected by the generation of harmonics (right channel) and subharmonics (left channel). All waves have different phases whose offset is constantly affected by minor variations created by two pairs of grains randomly fluctuating within the waves amplitude spectrum and being sampled at a certain speed.

Waves then meet to each other to a common point, together with two white noise sources, creating constructive and destructive interferences constantly affected by two LFOs movements.

Interferences are then run into a resonant low pass filter and then distributed to four different delay lines from which they are fed back into the audio loops at different time intervals depending on the grain's movements.

Width: 10HP
Max depth: 29.6mm
Current draw: +12V: 125mA, -12V: 30mA, +5V: 0mA;
Material: 2mm anodised brushed aluminium

Notes: SWEnigiser Proto VCF/A

Enigiser multimode filter and VCA in 12hp. Circuit based on originalEnigiser prototype kindly loaned by Anthony Linell of Northern Electronics.

VCF
Unique configuration with 3 x 4 filter modes
2x audio input with drive
2x cutoff CV attenuverter inputs
1x cutoff CV input, tunable to 1v/oct

VCF output normalized to VCA input.

VCA
1x audio input with gritty drive, normalized from VCF output
2x CV input. CV1 knob adds offset for drone etc.
CLIP switch for old/new revision Enigiser diode setting adjusting drive character.
+12V 22mA
-12V 22mA
Skiff friendly
Includes power cable, 4 screws+ plastic washers

Available in sand blasted silver and black panel versions.

Notes: ***B-STOCK: Item refurbished, repaired and in perfect working order.***


Dimensions is a true stereo chorus effect for the Eurorack modular system featuring two algorithms. The first is a direct port of our Fluid chorus plug-in, and the second is taken from the unit's namesake. With automatic routing based upon what you plug in the I/O, Dimensions can do mono->mono, mono->stereo, and true stereo chorus duties.

Dimensions' Mode A operation is a ludicrously thick chorus. Most chorus effects have either a single delay line or a pair. Dimensions has six of them, each with its own modulation scheme. The Mode B operation changes the routing to match the vintage rack unit, but keeps the controls available. This results in a subtly different, but equally thick and appealing, effect.

Notes: EXP-FX, Il Sole e la Luna (eg. The Sun and the Moon) is an expansion module for Sibilla,
aiming to let you admire the same panorama under two different glows.

Depending on the Sibilla uploaded firmware, EXP-FX can either act as an actual Sibilla expander, giving you direct control on more Sibilla's parameters, or can turn your module into a stereo pitch shifting droning effect, allowing you to process your favourite oscillator the same way Sibilla processes its internal waveforms.

Every knob but the Line Gain is CV controllable and accepts i5V while the Freeze button can be activated with external triggers.

EXP, il Sole:
Everything regarding EXP is written with golden graphics on the module faceplate.
Expand your Sibilla by adding more control on the internal AR envelope and filter resonant
frequency. With the help of this firmware, Sibilla's controls stay untouched and the following

EXP commands are added:
ATTACK: sets the duration of the envelope attack stage. This is the time it takes for
the envelope level to go from zero to the maximum level when a gate signal is
received on Sibilla's trigger input. The duration is nearly zero with the knob fully
closed, and 5 seconds when the knob is fully clockwise.
RELEASE: sets the duration of the envelope release stage. This is the time it takes
for the envelope to go from its maximum level back to 0 after the gate is released
(max length is 5 seconds).
Q: sets the peak level of Sibilla's resonant LP filter (Resonance). When fully
counterclockwise, resonant peak will be rounded and become more apparent with
higher settings, depending on the harmonics created by Rise and Fall parameters of
Sibilla.

FX, la Luna
Everything regarding FX is written with white (black panel) or black (silver panel) graphics on the module faceplate.

With configurable eurorack/line stereo inputs, this firmware turns the whole duo (FX + Sibilla) into an intricate stereo pitch shifting delay droning effect. Splits your incoming sound in two separate pitch shifted tracks whose stereophony is affected by LFOs movements, white noise, delay lines and sampled bits of audio.

When installing this firmware, Sibilla's parameters perform the same functionalities as always, but applied to the incoming input audio signals:
RISE: pitch-shifts (from low to high pitch) the incoming sound on the left channel.
FALL: pitch-shifts (from high to low pitch) the incoming sound on the right channel.

As for Sibilla, the stereophony of these pitch-shifted tracks is affected by the movement of two free running LFOs with configurable waveforms and can be altered by a resonant LPF and the addition of a white noise source.

In addition, Sibilla's sampling delay network is now open and can be directly modified by the user:
BUFFER SIZE: controls the real time sampling window length. It's nearly 100ms
when the knob is fully closed and goes up to 1s with the knob fully clockwise.
FEEDBACK: controls the amount of sampled and pitch shifted audio sent back into
the sampler.
FREEZE: manually freezes the audio buffer to the last recorded bit of audio. While
frozen, the buffer size can still be modified.
GRAINS: sets the starting position of the audio bits to be recorded into the buffer
size (this feature still needs to be activated with a double tap on Sibilla's centre
button).

A small switch on the back of the module is used to shift between Eurorack and Line input signal. When Line inputs are configured, the Line Gain knob can be used to tame the incoming audio signal.

Width: 6HP Depth: 18mm

Material: 2mm anodised brushed aluminium front panel (black and silver)

Current draw: EXP-FX doesn't draw current directly from your system but relies on Sibilla's power; for this reason, depending on the uploaded firmware, Sibilla's power consumption will change as follows:
Sibilla + EXP: +12V: 140mA; -12V: 33mA; +5V: 0mA;
Sibilla + FX: +12V: 142mA; -12V: 35mA; +5V: 0mA;

Notes: The Garden Listener is a random control messages generator from biometric signals. It detects conductivity variations on living beings' surface and transforms them into MIDI notes, ranging from C-1 to C8, and CV signals (0 - 5V). Its behaviour can be tamed through the one-knob menu from which you can choose and modify:

probes' sensitivity (making it more or less sensitive to current variations);
scale (chromatic, major, minor, Indian and Arabic);
MIDI channel (from 1 up to 16);
LEDs' brightness.

Conductivity variations are detected by the Probes Input and converted into MIDI notes in real time according to the Main menu settings. Each MIDI note exits through the MIDI output, allowing you to take advantage of the sound of either any synthesizer equipped with a MIDI port or any VST in your DAW, and gets converted into an analogue signal.

Trigger and Gate are fired every time a new note is generated, their voltage output can be modified with the respective attenuator (0 - 5V).

All the MIDI notes are converted into variable voltages (0 - 5V) depending on their pitch and exit through the CV output (1V/oct).

The CV output behaviour can be modified via the Octave Selector which acts as a "CV equalizer" from which you can choose to generate CV only if the respective MIDI note lies within a certain octave range.

For once, leave those LFOs alone, and let any living conductive being modulate your signals.

The module comes with 3.5mm white probes and a set of snap-on adhesive reusable electrode pads. A MIDI-TRS type A adapter (not included) is required for the MIDI output.

The module requires calibration for a proper 1V/oct output.

Built Module, SMD pre-soldered
Width: 8HP
Max depth: 22.6mm
Current draw: +12V: 24mA, -12V: 20mA, +5V: 0mA
Panel material: 1.6mm FR4 black front panel with gold finish

Notes: Motion Pictures

(Delay And Reverb)

Motion Pictures combines lush delay and reverb with intuitive, powerful controls within a 10HP module. Choose between a crisp digital delay or a warm analogue delay and pair it with a spacious, large-hall stereo reverb. Delay and reverb levels can be adjusted independently, allowing you to use them separately or together. The delay time can be controlled using a knob, tap tempo, or CV. You can even send opposing CV signals to the tap tempo and delay time for glitchy, pitch-bending, rhythmic effects. Additionally, CV control extends to the feedback, delay, and reverb levels, providing greater flexibility. Motion Pictures offers rich ambient sounds in a compact design, combining delay and reverb in one module to optimize rack space while preserving sonic depth.

Notes: The LedPressor is a full stereo Diode-based compressor module.
Its unique core adds character and color to any signal passed through it.
The LedPressor can be used as a normal compressor with low input levels, but as the input volume increases and the "nuke" LED lights up, it enters a new territory that combines compressor and overdrive, creating a dynamic overdrive effect.

Get it pumping with the Side Chain
The module features an external sidechain input that accepts audio and CV signals. Only the sidechain signal passes through a high pass filter, which gives the user greater control over the sound shape. The audio signal itself is not affected by the filter.
Parallel compression
The module also includes a mix knob that can be controlled with a dedicated mix CV input, allowing for greater flexibility when blending dry and wet signals. Additionally, it features a momentary bypass button to easily adjust the levels of dry and wet signals.
Feed-Back Or Feed-Forward - it's your choice
The module can be configured with a feed-back or feed-forward topologies with a jumper in the back.
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
: 34mm
Current Draw
+12V
: 20mA
-12V
: 15mA

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

Notes: Reduxer is a stereo sample reducer effect module.

Depends on it's signal, It can produce dynamic range of sounds from knurly bitcrushing to formant/vowel style effects.

Extra resolution

Custom made Redux potentiometer with 300 degrees rotation for extra crashing resolution.

Double the power

Two proprietary sample reduction circuits with extra offset control on channel 2 via the "Spread", lets you create motion in the streo field for wider effect.

Stereo operation

Inputs are normelized - supporting mono to stereo configuration.

Reduction under control

Redux CV input with attenuator for external control of the bit reduction rate.

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: 8HP
Depth: 20mm

Current draw

+12V: 25mA
-12V: 25mA

Notes: OpticShifter is a 20-Stage optical Phaser with flexible feedback and pole selection. Drawing inspiration from classic 70's era phase shifters, it combines vintage charm with modern versatility. Whether you're aiming for subtle movement or dramatic swooshing and whooshing, from phasing to vibing, OpticShifter creates an immersive Phase Shifting experience.

Notes: RipWave is a compact 6HP analog VCO designed for rich sonic exploration in a small footprint. At the heart of its design is the Transform knob: a unique, voltage-controllable parameter that shapes the character of each waveform. It offers a wide range of timbral variation, from saturation to wavefolding, harmonic morphing, and pulse width modulation, all in a single control.

On the Sine output, the Transform knob applies a tanh() saturation circuit, gradually shaping the waveform from a pure tone into a warmer, slightly overdriven version. As you turn the knob, the wave is smoothly compressed and harmonics are introduced, adding character without harsh clipping.

For the Triangle wave, turning the Transform knob folds the waveform through a transistor wavefolder, shaping the timbre of the signal by adding harmonic complexity. An additional soft clipping diode saturation stage keeps the amplitude in check, taming peaks while introducing additional character.

In the case of the saw output, the waveform is generated by combining two complementary signals: one waveform containing only odd harmonics, the other only even harmonics. The Transform knob controls the balance between them. At the center position, both are equally summed to produce a Sawtooth wave. Turning the knob blends between the two, letting you isolate odd or even harmonics and shape the timbre across a wide range of harmonic textures.

The Transform knob performs a more traditional role with the Pulse wave, acting as a pulse width control. At the center position, it produces a classic Square wave with a 50% duty cycle. Turning the knob shifts the duty cycle toward narrower or wider pulses, delivering the familiar pulse width modulation sound.

An octave switch provides quick transposition and includes an LFO mode for low-frequency modulation duties, allowing RipWave's uniquely shaped waveforms to be used as modulation sources. RipWave also features both sync and linear FM inputs. The sync input allows the oscillator to be reset by an external signal, creating harmonically rich or rhythmically locked results depending on the source. A rear-panel jumper lets you select between hard and soft sync modes to suit different patching contexts.

The linear FM input offers a wide modulation range, from subtle pitch modulation and vibrato to deeper, more complex timbral shifts depending on modulation depth.

Though initially designed as a companion for VastWave, RipWave has developed a strong identity of its own. It performs equally well as a standalone oscillator in a compact system or alongside its larger sibling. Whether used for Lead voices, complex layering, or modulation, it delivers a wide range of shaping options. From warm tones to ripping textures, RipWave pushes all waveforms into harmonically rich territory, making every output well suited for East Coast - style subtractive synthesis as well as West Coast - style waveshaping systems.

Notes: This module is designed to generate a multitude of aggressive, punchy, violent and absolutely bonkers variations of the original unprocessed sound.

Transform any clean sound into a distorted monster, using 2x drive stages per channel with a wide range of distortion flavors ranging from subtle saturation to extreme fuzz.

Process two channels at the same time and create balanced and smooth or raw and rough transitions between them.

Allow the kick drum and bass line to coexist effectively in the mix, avoiding conflicts in the low-frequency range with env. follower and sidechain.

Shape any sound with 3 band adaptable EQ.

Function as a signal generator as well, this module can be pushed into self-oscillation at any frequency even with no input.

Add sub-octave tones to melodies and bass lines.

Preserve the dynamic range and clarity of the sound through parallel processing, ensuring that the original characteristics are not lost even when applying heavy distortion.

Add character, flexibility and madness to any source that sparks your imagination.

Notes: This module is designed to generate a multitude of aggressive, punchy, violent and absolutely bonkers variations of the original unprocessed sound.



Transform any clean sound into a distorted monster, using 2x drive stages per channel with a wide range of distortion flavors ranging from subtle saturation to extreme fuzz.



Process two channels at the same time and create balanced and smooth or raw and rough transitions between them.



Allow the kick drum and bass line to coexist effectively in the mix, avoiding conflicts in the low-frequency range with env. follower and sidechain.

Shape any sound with 3 band adaptable EQ.

Function as a signal generator as well, this module can be pushed into self-oscillation at any frequency even with no input.

Add sub-octave tones to melodies and bass lines.



Preserve the dynamic range and clarity of the sound through parallel processing, ensuring that the original characteristics are not lost even when applying heavy distortion.



Add character, flexibility and madness to any source that sparks your imagination.

Notes: The OpticTone MK2 is an improved revision of our original module, combining a 12dB multi-mode Vactrol VCF and a Vactrol VCA. This unique circuit is inspired by the distinct characteristics of Vactrols and Lowpass gates, celebrated for their fluid and natural character.

Notes: Polyphonic sequencing from Elektrofon, the Klang allows you to program and perform chords and multi-layered harmonies. Circular clock-style display gives visual feedback and real-time indication of chord progressions.

Supplier's Notes:
«Klang» is a 4 voice polyphonic controller. It stores, traverses and manipulates chord progressions.

Overview

«Klang» is a unique take on polyphonic control within Eurorack.

Displaying chords in a circular clock-like display, and giving the user immediate control over every aspect without "menu diving" makes for an easy to use and inspiring module.

The module can store up to 99 chords, where each chord is made up of 4 voices.

Each voice is represented by a colored indicator on the clock-face which in turn is controlled by an encoder.

The indicators points to notes on the chromatic scale drawn in 360- around the clock-face.

Interface

The big grey encoder in the middle of the module lets you browse the chords - the active chord and total chord count is shown just above the encoder on the display.

The + button lets you ad a new chord. The new chord is added after the currently active chord, and the new chord is then set as the active chord.

The - button removes the current chord.

Inputs

The module has 3 inputs - 1 trigger input and 2 bipolar CV inputs.

Trigger input

The trigger input triggers a chord change.

If the direction input is unconnected, a single trigger results in a single step in the forwards direction.

Direction input (+-5V)

The direction input normalizes to a single step in the forwards direction.

You can feed this input a bipolar CV (+-5V).

Direction maps the total chord count to 5V. This means that +5V results in a single trigger progressing +n steps, where n is the total chord count.

A negative voltage will do exactly the same but resulting in backwards stepping.

0V equals no movement.

Transpose input (+-5V)

This bipolar CV lets you transpose the current chord up or down within 1 octave.

It is therefore a 5V/oct input.

The reason for this is that it is intended to be used with an analoge voltage source like the Pressure Points from Make Noise, or any other analoge sequencer.

It is much easier to fine tune a 5V/oct signal with a regular potentiometer than a 1V/oct signal.

Outputs

Each voice has a separate color coded 1V/oct CV output.

Notes: ALGO's four oscillators can be configured in series or parallel combinations, to create Complex FM or additive sound textures.

A unique Algorithm Display indicates the signal flow from one oscillator to another - easy to understand FM with pretty twinkly lights!

Each oscillator has controls for Level and Frequency, allowing easy adjustment of FM timbres, no menu diving snorkels needed.

Modulation inputs for Frequency or Level for each oscillator - patch in a couple of Envelopes, and you have an instant FM synth voice.

Bored of Sine waves ? A generous Wave Warp control bends things through Triangle to Pulse wave and back again.

Wave Warp can be applied to Carrier, Modulator or both types of oscillator.

For the more discerning mangler, Wave Folding is also available in three delicious flavours; Symmetric, Asymmetric and Soft Clip!

A Global Detune spread control with CV input is great for creating Netflix apocalypse drones that descend into the abys.

Lastly an onboard Stereo Chorus can add a vivacious 1980's shimmer to all your FM creations.

Oh, nearly forgot. It's Stereo!

Notes: Welcome to the Envy Machine ! A compact quad-channel modulation machine, with an envious array of Envelopes, LFOs, random voltages even Knob Recording. With four channels of modulation, ENVY MACHINE makes an ideal companion to the RYK ALGO module

Each of the four channels on the ENVY MACHINE can be set to one of five super-flexible modulation modes:

- ADSR Envelope

- AD Envelope

- AD LFO

- Random Voltage

- Recordable Knob Voltage Control

Ghost hand - Parameters can be animated using KNOB RECORDING to create timed variations in your patch. Oh, and with the dedicated MOD input per channel, you can use an external CV to control anything - TIME, LEVEL, WAVESHAPE and more.

Polarity paradox - Modulation inputs AND channel Outputs come with bipolar attenuverters, now you can choose either bipolar or unipolar, with continuously variable level control.

Slippery slopes - WAVESHAPES are continuously variable between LOG, EXPO, SIN, TRAPEZOID, and SQUARE!

Notes: FM & Vector Synthesis

Two icons of the '80s in one unit

Introducing Vecor Wave from RYK Modular bringing together the awesome power of 16 oscillator FM, combined with Vector synthesis OR true multi voice polyphony.

The Vector Wave is a feature packed compact Eurorack module, which can be used as a stand alone synth-voice without the need for external VCA,ENV, LFOs etc.

Features

16 oscillators, divided into 4 banks, oscillators can freely configured into series or parallel combinations for complex FM or additive synthesis

A cute Vector Joystick for morphing between oscillator banks, for cool performance timbre sweeps and sonic movement
Vectors can be recorded from the joystick and replayed from trigger sources, or animated from external or internal modulation sources

Super cool retro Big-Pixel screen, ideal for nostalgia freaks or the visually impaired

Wave Warping brings grit and aggression to the FM synthesis with oscillators continuously variable between Sine,Tri-ish Saw, Pulse waveforms

Wave Folding for subtle to extreme sonic bending

Two Envelope generators [ per voice in polyphonic modes ], and two LFOs with all controls assignable as modulation destinations

Intuitive Modulation Slot patching from external and internal sources to be routed to any parameter within the Vector Wave

30 User Voice storage spaces for storing your synth masterpieces to internal memory, enabling you to impress your friends at a later date

Thee modes of oscillator bank allocation Monophonic Vector, and Polyphonic Voice, and Multitimbral Polyphonic

MIDI input for a spaghetti-free Polyphonic setup, velocity, aftertouch and MIDI CCs avail- able as modulation sources

Slim but handsome Expander Module also available that adds 3 more V/oct and Gate inputs, for maximum mutli-voice multitimbral melodious mayhem!

Notes: Add 3 more V/Oct and Gate inputs to your Vector Wave with the Expander

The Vector Wave Expander module from RYK Modular allows you to use CV and Gate to control the Vector Wave as a 4 Voice multi-timbral synth module.

And it looks nice.

Features:

3HP

Notes: A sequencer and a filter-bank got together...

...And a love child was born !

Introducing NIGHT RIDER, from RYK Modular

Four multi model filters with stereo capability, combined with a six-stage four-channel modulation sequencer.

Finally a filter bank that unifies the control of multiple parameters, enabling a spaghetti-free approach to formant animation fun.

NIGHT RIDER cleverly turns the dials to where you want them, when you want, via it's unique modulation sequencer

Create dreamy swooshing 70's phaser filter sweeps
Phenomenal for phoneme vocal formant rasps and wheezes
Plucking great for strumming Karplus Strong twangs, and pinging filter pings!
Or, turn your silk into shredded cabbage, with the built in bad-ass clipping-saturator

Technical specifications

Frequency range - from rumble to wispy
Resonance/Feedback range - from tame to insane
Individual Filter levels - silent to beyond 11, for serious saturation-clipped sonic destruction

Features:

Four filter blocks, with multiple models , including:
6db BPF [ pingable ]
12db BPF [ pingable ]
12db variable width BPF
Comb Filter for Karplus Strom [ pluckable & flanger vibes ]
All Pass filter [ crazy Phaser vibes ]

Dual Input and Stereo output, with Pan control for each filter in the stereo field. Input can
be Mono [ CH1 - 1,2,3,4 ] or Dual [ CH1-1,2 CH2 - 3,4 ]
Modulation Sequencer capable of being clocked, scanned, and interpolated
CV inputs for sequencer Interpolated scanning, 1V/Oct frequency offset, Slew amount,
Resonance amount, Clock or MIDI clock input for sequence animation, MIDI CC
Memory slots for storing and retrieving Filter and animation setups, and retrieving preset formant, and chord based Filter setups

Vital stats:

Width 16 HP
Depth 25mm

52mA +12V
9mA -12V
0mA 5V

Notes: The core idea behind this module is all about control voltage. Hence all features are individually broken out to CV inputs, making the most use possible of the benefits of the digital wavetable oscillator. This means that the design is geared towards allowing hands-off control of all aspects and some concessions have been made to that effect.

Initial setup basically consists of connecting the power cable to the module and your bus. The cable has a slotted socket for correct orientation, but mind that the red stripe faces the white line on the edge of the PCB. The included screws are nylon in order to minimise rack-rash.

Tuning the module is possible by adjusting the small SMD trim potentiometer on the back. It adjusts the offset voltage that affects the centre point of the LFO oscillations. It should be close to its three o'clock position, but you can adjust it by turning the module on, reducing the output level to almost zero and turning the trim potentiometer until you find the point where the gate output led just barely turns off.

The LFO sync type is hard sync, meaning that it resets the current cycle to the beginning of the waveform. It does not control the duration of the cycles. This allows you to further shape the output to, say, three quarters of a sinewave by using external sync and adjusting the HZ knob so the duration of a cycle is just a little longer than the time between incoming sync pulses.

Colour coded nuts indicate the type of jack, with gold representing Gate/Trigger input, black is +-5v CV inputs and red jacks are outputs.

The CV inputs are scaled down to +-2.5v and added/subtracted with the knob setting, meaning that to sweep the full range of the parameter with CV, the knob should be in centre position. The inputs are clipped to the allowed range after mixing, so you can apply any eurorack voltage here.

The module's core processor is socketed, so using a simple PIC programmer and some basic Assembly knowledge you can modify its functionality to suit your needs.

The code is written by Electric Druid who supplies me the chips preprogrammed.

Fully voltage controllable Eurorack format, externally syncable, 16 waveform low frequency oscillator with built-in VCA and sample & hold.
Powered by a socketed VCLFO10 IC from Electric Druid.

Suitable for precision modulation, live performance as well as educational purposes.

Height: 3U (128.5mm)
Width: 12hp (60.6mm)
Depth from panel: 31mm
Depth total: 51mm
+12v: 80mA
-12v: 60mA

Notes: The core idea behind this module is all about control voltage. Hence all features are individually broken out to CV inputs, making the most use possible of the benefits of the digital wavetable oscillator. This means that the design is geared towards allowing hands-off control of all aspects and some concessions have been made to that effect.

Initial setup basically consists of connecting the power cable to the module and your bus. The cable has a slotted socket for correct orientation, but mind that the red stripe faces the white line on the edge of the PCB. The included screws are nylon in order to minimise rack-rash.

Tuning the module is possible by adjusting the small SMD trim potentiometer on the back. It adjusts the offset voltage that affects the centre point of the LFO oscillations. It should be close to its three o'clock position, but you can adjust it by turning the module on, reducing the output level to almost zero and turning the trim potentiometer until you find the point where the gate output led just barely turns off.

The LFO sync type is hard sync, meaning that it resets the current cycle to the beginning of the waveform. It does not control the duration of the cycles. This allows you to further shape the output to, say, three quarters of a sinewave by using external sync and adjusting the HZ knob so the duration of a cycle is just a little longer than the time between incoming sync pulses.

Colour coded nuts indicate the type of jack, with gold representing Gate/Trigger input, black is +-5v CV inputs and red jacks are outputs.

The CV inputs are scaled down to +-2.5v and added/subtracted with the knob setting, meaning that to sweep the full range of the parameter with CV, the knob should be in centre position. The inputs are clipped to the allowed range after mixing, so you can apply any eurorack voltage here.

The module's core processor is socketed, so using a simple PIC programmer and some basic Assembly knowledge you can modify its functionality to suit your needs.

The code is written by Electric Druid who supplies me the chips preprogrammed.

Fully voltage controllable Eurorack format, externally syncable, 16 waveform low frequency oscillator with built-in VCA and sample & hold.
Powered by a socketed VCLFO10 IC from Electric Druid.

Suitable for precision modulation, live performance as well as educational purposes.

Height: 3U (128.5mm)
Width: 12hp (60.6mm)
Depth from panel: 31mm
Depth total: 51mm
+12v: 80mA
-12v: 60mA

Notes: The Futureretro Transfer is a 12hp analogue filter featuring 16 different types of fully controllable filters with CV inputs, a voltage controlled amplifier, and an input overdrive. While the included 4 types of commonly used low pass filters, and the 12 specially crafted unique filters were specifically engineered to be the perfect sonic pairing with our Trax and Transient models, the Transfer also functions perfectly with any modular setup.

3 larger control pots give immediate and easy access to cutoff, input drive, and resonance control with the three smaller attenuators/attenuverters control input from the type CV, cutoff CV, and resonance CV input jacks. A VCA (voltage controlled amplifier) jack is conveniently placed at the bottom row along with standard input and output jacks.

Notes: The SetonixSynth SkyWave is an all-analogue voltage controlled oscillator capable of producing many different timbres and unique harmonic behaviours, thanks to an original step-based control scheme which allows the user to dial in completely different wave-shapes and levels for successive oscillator cycles.

This complex VCO uses an internal feedback loop with the clock output of the oscillator triggering a step sequencer which in turn cycles through settings at the frequency of the core oscillator, thus changing the shape and level of the waveform output on a per-cycle basis while also staying in tune and tracking pitch like a typical VCO.

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: The SetonixSynth Marsupial is a new dual filter design based around the re-issued AS3350 filter IC, originally used in rare synths such as the Synton Syrinx, Crumar Spirit and Rhodes Chroma but never widely utilized. Normalization between the control inputs and a Series/Parallel switch makes it simple to dial in a huge variety of unique and musical filter sounds.

Current draw: 36mA @ +12V; 35mA @ -12V

Eurorack width/depth: 8hp; 25mm

Notes: The SetonixSynth/Tidbit Audio Psychedelic Voltage Processor, or PVP, is a four-channel chaos module. It uses colour-changing LEDs to produce fluctuating voltages in response to the Channel input, with each channel normalized in series to create increasingly chaotic "taps" that can be used one after another for different variations.

Any positive voltage input such as unipolar LFOs, envelopes, stepped voltages, or simply the onboard normalized voltage patched to a channel input is reproduced approximately on each channel output, with the PVP inducing unpredictable fluctuations due to the variable current consumed by an LED circuit with a mind of its own.

Dimensions
8 HP
25 mm deep

Current Draw
135 mA +12V
10 mA -12V
0 mA 5V

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: Simple but effective approach to signal routing here from Jolin Rosa. The Morpher is a four-in/four-out crossfader, scanner and switcher, allowing you to shape, route and manipulate any signal with ease.

Supplier's Notes:
ROSA is a multi-mode crossfader, scanner, and switcher that allows seamless morphing between up to four inputs and outputs. With its three operating modes (Scan, Wave, and Pass), you can easily shape and route signals to fit any patch.

A quick overview:

Scan Mode: Morph between up to four inputs with adjustable curves using the KNEE control.
Wave Mode: Independently control the four VCAs for complex dynamic changes.
Pass Mode: Route a single input (or mix multiple inputs) to up to four outputs, perfect for quadraphonic setups or parallel processing.
Infinite Analogue Potentiometer: For smooth, continuous transitions.
Global SHUT Control: CV-controlled mute for immediate silence.

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.

Specifications:
Current draw: +12V: 15mA, -12V: 15mA
Depth: 22mm
Width: 2HP

Notes: Ohm Force's genre-defining 'shaper' distortion plugin comes to Eurorack in this neatly designed module. Over 100 distortion programs in full stereo, with plenty of hands-on control and extensive CV modulation options.

Supplier's Notes:
Time to get away with murder

From the plugin that redefined distortions forever

111 different distortions and shapers in one single 14hp module

Full stereo

Advanced performer modes

Back on Eurorack

Ohmicide Eurorack is an adaptation of the legendary distortion plugin that defined the now well populated category of "shaper" effects. Amongst the numerous things that made it a hallmark plugin was the carefully crafted distortion library covering all things known and many more unknown. All of those 111 distortions are now ready to burn your finger tips in a remarkably versatile module delivering huge sonic possibilities. ant let you change the texture of your VCOs, drums and samples in subtle or brutally unsubtle ways. Use all sorts of distortions, including bitcrusher, freezer, filtering and jellyfish variety.

Wiggle. Listen. Drool.

With a routing redesigned for Eurorack you'll need little learning to go straight to soundscape heaven (or hell, preference may vary). Shape the frequencies you want with the XOVER and the two Low Pass Filters. Explore the impact on all of your sounds, from mono VCO to stereo drums loops. Cycle through TYPE to find a fit or get nice surprises then tweak BIAS and MOD to explore new forms of madness.

It's alive

Ohmicide Eurorack features CV for all of its parameters including four with attenuverters. It also has automatic gain staging that is essential to the distortion delivering texture, not just loudness. And for your live experience we incorporated a performer mode that let you store and even automate preset switching. Ohmicide is lovingly crafted based on decades of experience in distortions. It's a module to lose yourself in for long sessions of sound exploration - or simply to get uniquely aggressive leads and drones.

Specifications:

Width: 14HP
Depth: 26mm
+12V: 120mA
-12V: 10mA
+5V: 0mA

Audio

Sample Rate: 48kHz
Hardware audio converters bit-depth: 24-bit
Internal processing bit-depth: 32-bit floating point
True Stereo Audio
High fidelity Texas Instruments Burr-Brown audio converters

Controls

Knob resolution: 16-bit (65536 distinct values)
CV inputs
Voltage: +5V (0..5V compatible)
Resolution: 16-bit (65536 distinct values)

Memory

Current distortion type, screen contrast and saver mode, TYPE and FAM CV +5V or 0..5V options
16 sequences
8 steps, each step being a snapshot of all knobs and switches
All knob options
Sequence length
Step reset mode

USB Port

Type: Micro-B
The USB port is only used to update the module firmware.

Notes: Catena is a control voltage powerhouse, packing in four channels of attenuation and offsets, two VC slew engines, half and full wave rectification, input voltage doubling and switchable voltage reference sources with an external offset input. As well as the standard cascading offset and polarisation utilities, the module can act as a percussive envelope generator or sidechain ducker, slow lag or glide control, waveshaper and mixer. Four channels of attenuators or attenuvertors are chained together, running from left to right, with an additional alternative mode per channel. The channel functions are chosen using a three-way slide switch above each control pot. Alternative modes use attenuvertion at the preamp stage allowing the modified signal to be polarised.

Alternative Modes

CH 1: Percussive Slew

CH2: Lazy Slew

CH 3: Half Wave Rectification (with gain boost)

CH 4: Full Wave Rectification

VREF Control

With no CV input patched, each channel generates +-5V or +-10V depending on the attenuvertor and VREF Switch position. The switch toggles between +5V and +10V precision voltage references. All Inputs and outputs soft clip at +-10V.

Slew Controls

CH 1 & 2 in the alt (slew) modes can have the slew response switched between tight and loose. There is further CV control via the CV input jack.

Offset Control
The pot controls the additional VREF amount added to CH 2, 3 & 4. With a CV input patched the pot controls an external signal input amount.CH 1 can also be offset by shifting a jumper on the rear panel.

Signal Doubler

Instead of unity gain as per the other channels, CH 4 doubles the input gain of a patched signal, but keeps any chained or offset signals at unity gain.

Mixer

High quality OPA op amps are used throughout, and Catena will happily serve as a mixer for 1-4 channels of audio. A five channel mixer is also possible by adding an audio signal to the offset jack.

Specifications

Intellijel 1U format
Width 28HP
Depth 34mm
Power requirements ~80mA +12V/~80mA -12V
Control voltage range +-10V
Impedance Input 100K / Output 1K

Notes: Catena is a control voltage powerhouse, packing in four channels of attenuation and offsets, two VC slew engines, half and full wave rectification, input voltage doubling and switchable voltage reference sources with an external offset input. As well as the standard cascading offset and polarisation utilities, the module can act as a percussive envelope generator or sidechain ducker, slow lag or glide control, waveshaper and mixer. Four channels of attenuators or attenuvertors are chained together, running from left to right, with an additional alternative mode per channel. The channel functions are chosen using a three-way slide switch above each control pot. Alternative modes use attenuvertion at the preamp stage allowing the modified signal to be polarised.

Alternative Modes

CH 1: Percussive Slew

CH2: Lazy Slew

CH 3: Half Wave Rectification (with gain boost)

CH 4: Full Wave Rectification

VREF Control

With no CV input patched, each channel generates +-5V or +-10V depending on the attenuvertor and VREF Switch position. The switch toggles between +5V and +10V precision voltage references. All Inputs and outputs soft clip at +-10V.

Slew Controls

CH 1 & 2 in the alt (slew) modes can have the slew response switched between tight and loose. There is further CV control via the CV input jack.

Offset Control

The pot controls the additional VREF amount added to CH 2, 3 & 4. With a CV input patched the pot controls an external signal input amount.CH 1 can also be offset by shifting a jumper on the rear panel.

Signal Doubler

Instead of unity gain as per the other channels, CH 4 doubles the input gain of a patched signal, but keeps any chained or offset signals at unity gain.

Mixer

High quality OPA op amps are used throughout, and Catena will happily serve as a mixer for 1-4 channels of audio. A five channel mixer is also possible by adding an audio signal to the offset jack.

Specifications

Intellijel 1U format
Width 28HP
Depth 34mm
Power requirements ~80mA +12V/~80mA -12V
Control voltage range +-10V
Impedance Input 100K / Output 1K

Notes: An unusual but enticing form of generative music in Eurorack, Kaona's Zazou module offers MIDI or CV sequencing based on a series of algorithms, allowing you to define parameters and generate melodies and patterns of up to four tracks.

Supplier's Notes:
Zazou is a generative music module based on numerous configurable algorithms. It acts as both an accompanist capable of syncing to a regular sequence and an improviser within a given framework. Its function is to produce notes: no sound comes directly from Zazou, as it's intended to be connected to one or more synthesizers or other Eurorack modules.

It features both a multitimbral MIDI output and Eurorack-compatible CV outputs.

To generate notes, Zazou requires "gate" signals to trigger each note. Therefore, it follows the rhythm imposed by a sequencer or any generator producing gate output. It pairs ideally with Skippy, Kaona's algorithmic rhythm generator.

Zazou produces music based on the equal temperament scale and follows the note division corresponding to keyboard instruments (piano, organ, etc.). Thus, in Zazou, as in a piano, a C sharp corresponds to a D flat.

Zazou produces notes on four independent channels that can nevertheless be tuned together.

Interface

Seven CV inputs:
One gate per channel: red, yellow, green, blue

One "Reset" input: realigns the tracks, resets the sequence, interrupts all MIDI notes currently playing.

One "Change" input: allows external sequence control.

One "Play/Stop" input: stops (or restarts) all produced notes and pauses the current sequence. This input also measures an external beat to determine the quarter note value (BPM) that Zazou will use (this value can also be set manually). The input can be a clock (set to one beat per quarter note) or a sequencer.

Seven buttons:
One per channel, matching its colour: they function differently depending on the displayed screen. (Selection, Pause, or Manual Gate).

One Play/Stop button: stops or starts all tracks simultaneously.

One "Change" button: manually advances the sequence.

One "Reset" button: realigns the tracks, resets the sequence, interrupts all MIDI notes currently playing.

Three encoders:
Their functions vary depending on the displayed screens.

One MIDI output:
The output is in TRS format. It's possible to choose between cable A or B using a switch on the back of the card.

Twelve CV outputs:
Four "gate" outputs: mirror the input signals but add ornamentation notes.

Four CV outputs: export velocity (selectable between 5V or 8V).

Four Note outputs: in 1V/octave format, across 10 octaves.

Basic Functions
All functions are identical for each channel but can be synchronized according to your composition criteria.

Root Note: determines the key each track plays in.

Scale: constrains Zazou to adhere to a given scale (22 scales available).

Sequence: dictates that the composition follows a given sequence.

Algorithm: allows the selection of melodic behaviour.

Sequences
It's possible to instruct Zazou to follow a sequence track by track, but it's often more musical to let the four tracks follow a single sequence. For example, you can choose the common II-V-I progression or the circle of fifths, but also use less common sequences. The sequence behaviour can be customized by selecting the number of notes in the sequence, passing notes, alternating major and minor chords, etc.

Algorithms
The algorithms determine the note behaviour for each track.

It's possible to freely mix algorithms track by track, choose the same algorithm for all tracks, or the same algorithm for all tracks but with different behaviours.

Depending on the chosen parameters, they will generate more or less repetitive, varied, or complex melodies. Even though each note depends on an external gate, some algorithms additionally produce ornamentation notes like triplets or appoggiaturas.

Random:
Allows for completely random and unpredictable operation. However, one can influence how randomness occurs by changing event frequency or velocity, for example.

Walkingbass:
Walkingbass precisely follows the sequence in a classic Jazz walking bass manner, with one quarter note per beat. Numerous forms are offered, and it's possible to enrich the progression with ornaments or emphasize strong or weak beats, for example.

Arpeggiator:
Several types of arpeggios are available, and it's possible to choose direction (including random), chords used, ornaments, and their frequency, etc.

Intervals:
Starting from a reference note chosen within the scale, Zazou will traverse a selected number of octaves and notes according to a given interval.

Serial:
Zazou will generate note sequences respecting the rules and principles of serial music. All theoretical parameters are available to practice the specific genre of dodecaphonic composition (inverse sequence, retrogrades, etc.).

Cantor:
The Cantor set starts with a segment (the complete range of available notes) and repetitively divides it, eliminating central segments. This creates a more or less detailed repetitive pattern depending on the chosen parameters.

Fibonacci:
The Fibonacci sequence is used to calculate note heights within a scale starting from a chosen note and modifying it according to selected Fibonacci numbers. Interval modulation allows staying within a playable range while exploring rhythmic and melodic patterns generated by the sequence.

Sierpinski:
The approach divides an octave into three equal parts (triads) and selects two for repetition, imitating how the Sierpinski Triangle is drawn by removing the central triangle and repeating the process on the remaining triangles. This divides the musical space according to the specified depth and plays notes based on this division, simulating the repetitive structure of the Sierpinski Triangle.

Mandelbrot:
The Mandelbrot set is one of the most famous fractal objects. Zazou maps this set into a musical representation to offer unique and varied sound structures. Since calculations are done in real-time, parameters can vary the melody's behaviour infinitely.

Julia:
Like the Mandelbrot set, the Julia set offers fertile ground for musical experimentation, with opportunities to explore fractal complexity through sound. Julia sets are defined in the complex plane and produce complex fractal patterns. Here too, real-time calculations allow parameters to vary the melody's behaviour infinitely.

System Functions
It is possible to choose a corresponding MIDI port for each track. Depending on your setup, you can use Zazou in polyphonic mode (same MIDI number), multitimbral mode (one port per channel), or multichannel mode (multiple synthesizers).

The quarter note duration (BPM) can be adjusted manually or automatically (clock signal, sequencer, etc.).

For all algorithms, you can choose the note duration proportionally to the quarter note value or match this duration to the incoming "gate" duration for each track. Thus, it is possible to play very dynamically with a variety of connected instruments as long as they provide a "gate" signal.

The velocity value can be selected within the range of 0V -> 5V or 0V -> 8V depending on your modular equipment.

Zazou operates across 10 octaves, in MIDI or CV (1V/oct) for modular use. However, it is possible to limit the number of octaves, either to accommodate synthesizers that poorly support very high notes or to limit the voltage in a modular environment.

Two settings allow adjustment of the overall pitch and fine interval between notes (only for modular use).

Saving
The internal SD card allows you to save, within its capacity limit, either track parameters (and load them for another track, for example), sequence parameters, or the entire composition.

Technical Specifications
18 HP

Depth: 32 mm

Power consumption:
+12 V 200 mA
-12 V 0 mA
+5 V 0 mA

Supplied with power cable and Knurlies.

Notes: This is a fully built module, with the latest firmware pre-installed. Comes with Rogan knobs. You can swap our panel for another manufacturer's panel!

Mutable Instruments Plaits is a multi-algorithm macro-oscillator that provides everything from FM to speech synthesis, analogue percussion emulation, wavetables, modal synthesis, granular synthesis...whoa, this module does basically everything. Expanding on Braids's strong points and eliminating its pitfalls, Emilie Gillet's Plaits is a perfect bonding of tremendous flexibility and an intuitive user interface.

Built from the ground up and sharing no code or hardware with Braids, Plaits borrows concepts from its predecessor while operating at considerably higher audio resolution and with a refined means of user interaction. For one, it dispenses with that pesky screen to offer even more tactility and immediacy. Additionally, Plaits features a dedicated CV input for the model parameter, easy access to the module's internal envelopes for modulation of vital parameters, and an integrated lowpass gate with definable filtering intensity and virtual vactrol response time.

Offering a broad survey of synthesis techniques, Plaits promises a vast sonic palette that could find a home in any modular synthesizer setup. Ideal for beginners and modular synth gurus alike, Plaits is an obvious choice for anyone who wants a lot of functionality in a small space and with a modest price tag.

Specifications

Width: 12HP
Depth: 25mm
Current draw
+12V: 50mA
-12V: 5mA

Notes: Rings is a resonator, the essential ingredient at the heart of several physical modeling synthesis techniques. The resonator transforms an external, unpitched excitation audio signal into a full-bodied pitched sound. Rings is the bar, the tube or the bunch of strings you cause to vibrate with a bursty external signal.

Any signal can be fed into the resonator, including envelope clicks, trigger signals, noise bursts, even tonal sounds. It also contains a special "polyphonic mode", where four notes can ring together at the same time. Although it is not truly polyphonic, it adds density and chordal characters to the sounds output. For those wanting the functions of Elements without the losing HP real-estate, Rings is exactly the solution.

Three families of vibrating structures are simulated by the module, with CV control over their parameters:

Strings, membranes and tubes as modelled by Elements' resonator section (modal synthesis).

Strings coupled together and vibrating in sympathy, with controllable intervals between them.

Strings with a variable amount of inharmonicity.

Rings can be configured so that each new note is played on its own virtual string, while the previously played note(s) still decay. This unique take on polyphony allows the module to play strummed chords.

Controls

Number of strings/structures (1, 2 or 4).
Synthesis model (modal, sympathetic strings, string).
Main frequency (quantized in semitones).
Structure. With the modal and string models, controls the inharmonicity of the spectrum (which directly impacts the perceived "material"). With the sympathetic strings model, controls the intervals between strings.
Brightness. Specifies the brightness and richness of the spectrum.
Damping. Controls the damping rate of the sound, from 100ms to 10s.
Position. Specifies at which point the structure is excited.

Inputs and Outputs

Frequency, structure, brightness, damping and position modulation CV inputs with attenuverter (-8V to +8V).

"Strum" trigger input to indicate when a new polyphony voice needs to be allocated. Normalized to an edge detector detecting changes on the main V/Oct input, or sharp transients on the audio input. Detection threshold at 0.6V.

1 V/Oct frequency input (-1V to +5V).

Resonator audio input, normalized to a filtered pulse/noise burst triggered by the "Strum" input (for stand-alone use). Modular level, up to 16Vpp.

Two audio outputs, splitting the signal into even/odd partials in monophonic operation, or even/odd notes in polyphonic operation.

Specifications

Module width: 14HP
Module depth: 25mm
Current draw: 120mA @ +12V, 5mA @ -12V

Notes: Skippy Exp is a tiny module in 2HP that adds "Play/Stop" and "Reset" functions to Skippy, either via a button or a CV input. It cannot operate independently; you absolutely need Skippy to use it.

For those who don't need the live adjustments offered by Skippy Live (or have run out of space!), Skippy EXP still provides two essential functions for dynamic performance.

This module cannot operate alongside Skippy Live, which already has these two functions. It can be placed either to the right or left of Skippy. The connector to link it to Skippy is included. This module does not need to be connected to power.

Technical Specifications
2 HP

Depth: 20 mm

Power consumption:
+12 V 10 mA
-12 V 0 mA
+5 V 0 mA

Supplied with cable and Knurlies.