Synth modules

Notes: The Shaped Dual EnvVCA is a two-channel analogue envelope generator with waveshapers and a stereo linear VCA. Unlike conventional analogue envelope modules, the waveform of each envelope can be controlled with a slider or CV without changing the envelope timing. With a wide time range from an hour to 2.5kHz, and a plethora of CV inputs and attenuverters, it can be used as an LFO, audio-rate oscillator, slew limiter, waveshaper, ASR/ADSR/complex EG, independent audio/CV VCA, envelope follower, sidechain processor, and general utility module. Each channel has dedicated linear outputs plus attenuverters and offset controls for the variable waveshape outputs, making it an ideal modulation source and stereo VCA.

100% analogue

Shaped Dual EnvVCA

20HP Eurorack format module
0.95" (24mm) maximum depth (includes power cable)
10-pin Eurorack power header

Power consumption
+12V: 255mA
-12V: 230mA

Audio/VCA
100k input impedance, 1k output impedance, DC-coupled
VCA gain range: -90dB to +2.0dB, linear response to CV from 0V to 5V
VCA unity gain: 4.4V CV
DC to 20kHz, +/-0.1dB

Envelope Times
Minimum rise or fall time: ~200us per segment (2.5kHz max frequency)
Maximum rise time: >20 minutes (typically > 40 minutes)
Maximum fall time: >12 minutes (typically > 20 minutes)

Jacks:
Env jack: Min = -10.2V, Max = +10.1V, maximum amplitude 9.3Vpp
Trigger jack: rising edge threshold = 1.25V
Follow jack: active range = 0V to +5V

EO* jacks:
EOR (channel A): <80mV low to >4.50V high gate output
EOF (channel B): <80mV low to >4.95V high gate output
Minimum stable pulse width: 1ms. Shorter than this may produce extra 50us pulses
Audio In/Out jacks: -10V to +10V maximum range without clipping

Notes: This is an exact hardware replica of the Mutable Instruments Blades module.

This model uses the original "hard-to-find" opamps, but After Later have substituted V2164M with AS2164D. All of After Later's products use AS2164D and there should be no measurable change in behaviour.

Notes: The WaveSwarm is a waveform animator and all analogue dual channel device.

Each channel simulates up to six VCO's beating in unison with a different beat frequency between each animation. The fixed beat frequencies are generated by twelve onboard LFO's, and the front panel pots control the level of each of the six animators, along with the level of the dry signal to the final mix. In addition to independent channel inputs and outputs it also has an A+B output, which sums the outputs of the two channels, creating an effect similar to twelve VCO's in unison! This is possible because channel B uses slightly different beat frequencies to channel A, they are not identical.

The input waveform can be saw, triangle, sine or wavetable/complex waveforms, in fact most waveforms with the exception of square or PWM waves will give some form of animation.

A soft clip circuit is built in so that at higher signal levels the signal magnitude is limited by rounding the top and bottom of the waveforms, thus slightly softening the sound. There are soft clip LED indicators for both channels.

It can produce huge, fat drones or supersaw type waveforms from a single sawtooth or triangle wave input.

Notes: The successor to Dinky's Taiko, Tyso Daiko is a 12-bit dual digital drum voice, with built-in analogue tilt EQ and wavefolder, plus extensive CV control. Intuitive, powerful and versatile.

Supplier's Notes:
The 'Tyso Daiko' is a dual 12-bit digital wavetable drum voice with full voltage control and an analogue EQ output path.

The twin voices are independently triggered and output, but share pitch, envelope and other parameters of a swept wavetable oscillator. One voice is output through a voltage controlled analogue tilt EQ emphasising upper or lower frequencies.

The other voice is output through a digital wavefolder which adds increasing timbral complexity (to noise).

Both voices respond independently to an accent input and the first voice is able to be 'choked' . A surface control allows for fine control of additional transients from a click to a slow attack. Full voltage control including a V/Oct pitch input makes the Daiko an expressive and wide ranging drum module with extremely wide pallet of sounds with lots of modulation possibilities.

The Daiko succeeds the original Dinky with the same spirit but much improved control, new features and new wavetables.

Technical Specifications

Supply: +12V 70mA Max / -12v 35mA
Size: 14 HP
Depth: 32mm

Notes: The second batch of Animal Factory's dual-valve saturation all-rounder features hand-matched 6J32P valves for a faster, slightly more precise take on this unique blend of mixing, VCAs, distortion and wave folding.

Supplier's Notes:
Orobas is a dual tube amplifier that is composed of two identical units.

Each channel has two audio inputs with dedicated gain controls and one output volume control.
Thanks to clever routing, a wide variety of sounds can be created. The two channels can be connected in parallel or in series (Parallel / Series). In series connection, the output of channel 1 is still active, good for parallel signals (note: each channel output is phase-inverted in relation to the opposite input). This way, feedback can be generated by feeding back the signal from output 1 to e.g. a control voltage input.

The screen control voltage input determines the gain and the sound characteristics. Additionally, the input is normalized to INPUT 1 of the respective channel.

The Suppress control voltage input is normalized to the input signal if nothing is connected. The purpose of this input is to direct electrons reflected from the anode back to the anode. Turning the knob to the positive does not change as much, turning it to the negative slightly attenuates overtones. With a positive control voltage the change is minimal, but with a negative control voltage you can realize e.g. ducking effects and effectively switch off the tube. Audio Rate Modulation is also possible here and a bit milder than with the Screen CV, but still effective.

The evocation potentiometer controls the feedback of the second output into the first channel. The sonic performance is very much dependent on the Plate Bias switch. The Plate Bias switch effectively controls the headroom. This allows you to use the tubes in three different settings, from fuzz sound to full distortion.

*This version is equipped with other tubes than in version 1.

Tube length: 55mm

Depth: 45mm

Notes: ***B-STOCK: Box opened, but product is in excellent condition and in perfect working order***


Orobas is a dual tube amplifier that is composed of two identical units.

Each channel has two audio inputs with dedicated gain controls and one output volume control.
Thanks to clever routing, a wide variety of sounds can be created. The two channels can be connected in parallel or in series (Parallel / Series). In series connection, the output of channel 1 is still active, good for parallel signals (note: each channel output is phase-inverted in relation to the opposite input). This way, feedback can be generated by feeding back the signal from output 1 to e.g. a control voltage input.

The screen control voltage input determines the gain and the sound characteristics. Additionally, the input is normalized to INPUT 1 of the respective channel.

The Suppress control voltage input is normalized to the input signal if nothing is connected. The purpose of this input is to direct electrons reflected from the anode back to the anode. Turning the knob to the positive does not change as much, turning it to the negative slightly attenuates overtones. With a positive control voltage the change is minimal, but with a negative control voltage you can realize e.g. ducking effects and effectively switch off the tube. Audio Rate Modulation is also possible here and a bit milder than with the Screen CV, but still effective.

The evocation potentiometer controls the feedback of the second output into the first channel. The sonic performance is very much dependent on the Plate Bias switch. The Plate Bias switch effectively controls the headroom. This allows you to use the tubes in three different settings, from fuzz sound to full distortion.

*This version is equipped with other tubes than in version 1.

Tube length: 55mm

Depth: 45mm

Notes: Befaco's unique GameBoy-based effects module allows you to change effects by swapping cartridges, all with CV control over key parameters. Effects include Skuara's harsh fuzz, Instruo's micro phaser and much more.

Supplier's Notes:
A crazy idea with the support of a bunch of crazy people.

A Multi FX module based on game carts!

FxBoy is a multi-FX module designed in collaboration with several talented manufacturers.

This is an effect unit with CV control over the parameters and Dry/wet control, with a Built-in CV controllable four bands EQ.

Each effect is physically hosted in a hot-swappable game cart and designed by a different manufacturer: Touell Skouarn with Skuara a harsh fuzz with overdrive, Instruo with micro Phaser, a two-flavoured Phaser, Feedback modules with a vintage Flanger, XOR with FX-Girl, a digital double effect module: Delay + Granularizer, Making sound machines with an analogue Wave folder, Tesseract with a bit crusher and Befaco Trash distortion!

What have these crazy people put in their cartridges?

Trash

Trash is a harmonic distortion that combines both clipping and folding flavours. Modes A and B will select between aggressive and more aggressive flavours!

Flanger

Analogue Wavefolder

Eskuara

AVMA
AVMA by Tesseract Modular is a bipolar VCA with one switchable wavefolder stage followed by an analogue frequency reducer. The VCA gain is x2, it can be used with i5V oscillator signals at the CV input for ring modulation effect.
Micro Phaser

Three cascaded all-pass filters, a built-in LFO and a saturator in the feedback path.

The purpose for this cartridge is to completely f&%k your phase up!

Instruo - We make sounds with the things that we make to make sounds with.

Technical Specifications

CV control over all parameters and Dry/wet
CV controllable four-band EQ, routable post or pre-effect.
Hot swap for all carts.
Selector for two different flavours of each cart.
Open specifications to design your own carts

Specs

Current needs: +12V: 125mA, -12V: 100mA, 5v: 0mA
Width: 12 HP
Depth: 35 mm (including power connector)
Aluminium, heat-treated front panel.
Designed and assembled in Barcelona.

Notes: The Cali oscillator is a new and improved version of the classic Buchla 258 wave shaping oscillator with an additional pulse width modulated output. The oscillator features the classic Sine to Square and Sine to Saw wave shaping with dedicated CV control. The Cali Oscillator differs from previous versions of the 258 in that it has a 3-way position switch rather than 2-way. This new middle position features a bonus waveform that will shape from a pulse into a kind of triangular trapezoid shape. The shaping control is more unpredictable in this middle position and the switch reacts to body contact when the wave shape is set low - it can be thought of as an extra bonus waveform, great for producing glitchy sounds! There are dedicated inputs for linear and exponential FM and the Cali also adds a Pulse output with it's own width control and PWM CV input. The behaviour of the pulse output can be affected by the position of the waveform switch and wave shape control. The module features Coarse and Fine frequency controls and an LFO mode, LFO range is accessed via an LED pushbutton that also acts as the LFO speed indicator - the button will light up when the waveform moves through its positive cycle. Because the wave shape modulation is independent of pitch this oscillator is very useful for creating complex timbres whilst retaining musical pitch.

Features

Sine to saw/square waveform output with cv over wave shaping

Pulse output with voltage controlled PWM

Linear FM with attenuator

Logarithmic FM with attenuator

Bonus 'trapezoid' output

Coarse & fine controls with LFO mode

Includes power supply isolation on frequency controls


Width: 12 HP
Depth: 22mm

Power
+12V = 37mA
-12V = 34mA

Notes: The Timbre is a 6HP Eurorack module based on the wave folder section of the Buchla 259 oscillator as implemented in the Music Easel.

The wave folder adds extra harmonics to input signals that have low harmonic content to create rich and interesting timbres. Typical input sources to use would be Sine and Triangle waves but you are welcome to try other sources as well! The Dannysound Timbre adds an extra input to the Buchla design to allow 2 oscillators to drive the wave-folder simultaneously - this dramatically increases the range of possible tones that can be generated and allows the folder to go wild!

Features:

Osc1 / Osc2 Mix - Adjusts the mix between the Oscillator 1 and 2 inputs, also acts as an attenuator if only one input is used.
Timbre Control - Adjusts the overall amount of wave fold
Timbre CV - Bipolar (attenuator) controls the Timbre CV input
Symmetry - Adds an offset to the input so that the top half of the wave begins to fold earlier
Blend - Mixes between the clean and effected sound

Power consumption: 46mA at +12V and 48mA at -12V

Depth: 25mm

HP : 6

Notes: Module A-184-2 is the combination of two functions and planned primarily as an expansion module for VCOs or LFOs (e.g. A-110-1, A-110-2, A-145, A-147-2).

Triangle-to-Sine Waveshaper:

The upper section is a very precise triangle-to-sine converter (thanks to Tim Stinchcombe who recommended this circuit). It can be used to convert any triangle waveform into a (nearly) perfect sine. The converter is much better than the simple diode converter used in the A-110-1, A-111-1, A-145 and A-147-2. Two trimming potentiometers are used to optimize the sine shape. The converter should be assigned to one VCO or LFO because the trimming potentiometers have to be re-adjusted if the input level or DC offset of the input signal changes. If the trimming potentiometers are deliberately mis-adjusted it can be used also as a waveshaper for non-sine waveforms (e.g. sine-shaped at the top of the signal and a peak at the bottom, even voltage controlled by applying an additional voltage to the waveshaping circuit, "circuit-bending" notes will be available).

The waveform converter is DC coupled and can be used also for low frequencies (e.g. LFO triangle waves).

Voltage Controlled Crossfader:

The lower section is a voltage controlled crossfader. It has two inputs A and B. The two signals are mixed together with variable percentage. When the manual control CF is fully CCW only signal A appears at the CF Out socket. When the manual control CF is fully CW only signal B appears at the CF Out socket. In the centre position of the manual control both signal appear with the same level. In addition a control voltage input CV with attenuator is available to enable voltage control of the crossfade.

Two LEDs display the crossfading shares of input A and B.

The crossfader uses two high quality VCAs (SSM2164). Inputs and outputs are DC coupled. Consequently it can be used for audio signals and slowly varying control voltages as well.

The sockets of the upper section (triangle and sine) are normalled to the inputs A and B of the crossfader section. That way the crossfader is used to fade between triangle and sine of the VCO or LFO connected to the waveshaper. If other signals are plugged into the input sockets A and B these signals are used for crossfading.

The main application is to fade between two different waveforms of a VCO or LFO or two different VCF outputs. But the module can be used for any other signals too as the waveshaper and crossfader sections are independent apart from the normalled sockets.

Notes: Versatile and valuable. The amazing Dreadbox Utopia is a CV audio and manipulator. It allows you to control a wide range of different properties inside your Eurorack system. These include four attenuverters, an offset generator, and a four to three mixer. This selection of tools give you the means to take control of your signals and bend them fully to your liking. Helping you put the finishing touches to your synth patch.

40 mA +12V
27 mA -12V
23 mm deep
10HP

Notes: Part of Erica's brilliant valve-based Fusion range, this is not your typical VCA. Waveshaping and ring modulation are the key features here, twisting and warping signals to great effect.

Supplier's Notes:

The Fusion VCA/Waveshaper/Ringmodulator is a complex sound processor that combines VCA, waveshaper and ringmodulator. It's not a regular VCA; it can operate as one, but most of the power of the module is in advanced modulations - with two CVs applied simultaneously to different stages of the VCA, audio rate modulations, using ringmodulator as a waveshaper - your imagination is the limit!

Low power consumption due to miniature vacuum tubes.

Technical specifications:

Audio Input level: 10Vptp
CV input level (full swing): -10V - +10V
Panel width: 14HP
Module depth: 36mm
Power consumption: 48mA@+12V, 69mA@-12V

Notes: Better known for analogue modules, it turns out Erica Synths are pretty damn good at digital too. Draw your own waveforms, build wavetables, tweak in real time and get freaky. Killer VCO.

Supplier's notes:
Erica Synths Graphic VCO allows you to draw your own waveforms, arrange them in wavetables and wavetable banks, morph between two selected waves and alter the resulting wave in advanced ways (FXes) - apply FM, phase distortion, ring modulation, wavefold/wavewrap, bitcrush.

Waves, wavetables, FXes and other settings can be saved and recalled from the memory instantly. The module has two outputs - the main output and the output with configurable suboscillator.

NB! To have the module functionality up to date, we recommend you to check the Erica Synths home pageor our social media from time to timefor announcements about firmware updates for the Graphic VCO. You can update the firmware of the module via miniUSB cable. More detailed instructions of the firmware update can be found in the User Manual.

The sound is clean, modern, punchy and detailed thanks to the unit running at 96kHz - quite different to some low bit-rate wavetable oscillators on the market. Wavetable interpolation is smooth as butter and with the built-in effects you can dirty things up in many different ways. The module scores highly on the sound front. The Graphic VCO is a very capable oscillator module with excellent sound quality and a lot of features that could make it the right choice, especially if live performance is your thing. - Sound On Sound
The bottom line is that the Graphic VCO is a joy to use. It's a module that's unashamedly digital, yet unmistakably eurorack. I think Erica showed a great deal of careful judgement and restraint in the design of this module. It would have been easy to have made it bloated and cumbersome trying to cram as many features as possible into it, but they kept it fairly simple which keeps the module fun and immediate in use. It's capable of a huge tonal palette ranging from beautiful to brutal that is bound to fit in with a lot of different styles and systems. - Ask Audio
The ability to draw and then effortlessly jump between different custom digital waveforms in this way feels unique on the Eurorack stage, and allows for a wide range of tones and transitions between them. - Orb Mag

Technical specifications:

Audio output amplitude
10Vptp
Octave range
C0-C8
Sample rate
96kHz
Unipolar CV input range
0 -+10V
Bipolar CV input range
-10V -+10V
Panel Width
16 HP
Module depth
30mm
Power consumption
152mA@+12V,
20mA@-12V

Notes: Want some distorted drums or thicken up the final mix but you are short in rack space? Pico Drive is the answer! Pico Drive is combined wavefolder overdrive module that features manually adjustable Gain and Drive level, CV control over Gain and Drive adds more expression, while built in limiter prevents output signal to run into undesired clipping.

Features:
Manual Gain and Drive controls
CV control over Gain and Drive
Wavefolder
Output signal limiter
Input and output protection against undesired overvoltage

Technical specifications:
Audio output level: -5...+5V
CV level (full span): -5V - +5V
Power consumption: 29mA @ +12V, 29mA @ -12V
Module width: 3HP
Module depth: 35mm

Notes: Clever FM module that does digital-style through-zero FM using analogue circuits. Use any signals from other modules as your carrier and modulator, then phase modulate or wavefold in the FM Aid.

Supplier's Notes:
FM AID is a module designed to perform through-zero linear Frequency Modulation (FM) in the analog modular world. Any arbitrary signals can be used as a Carrier and Modulator. The module copies FM in how it is done in digital implementation, but in a completely analog circuit free of digital aliasing artifacts. Digital or software FM oscillators are mainly based on a ramp waveform which is then shaped to other waveforms. This is also represented in the FM AID module: sawtooth signal is expected on the Carrier input to give the indicated sine, triangle, sawtooth and square waveforms on the respective outputs. However the user is not limited to only use sawtooth for the Carrier and any other signal can be plugged giving many complex waveforms at the outputs.

All known FM tricks from digital implementation are also applied - you can endlessly experiment with the Carrier/Modulator frequency ratios, Modulation index (FM knob), Modulator's amplitude shaping (CV knob), feedback FM (output is fed back to the Modulator's input) and many other.
Carrier input has normalled connection to the Modulator's input. This internal routing is disconnected each time a plug is inserted in the Modulator's input. That is a handy option which allows the module to be used with only one signal source - this single signal will act as Carrier and Modulator at the same time. There won't be any frequency differences between Carrier and Modulator in this case, but many interesting wave folding sounds will be available anyway.

Technically speaking FM AID uses Phase Modulation, not Frequency Modulation. The sonic difference is that the produces sound is brighter.

SPECIFICATIONS

Carrier input level: -5V ... + 5V (can also accept inputs ranging from -1V ... +1V] to [-12V ...+12V] / [-15V ...+15V] using onboard trimmer)

Modulator input level: preferably -5V ... + 5V

CV input level: preferably -5V ... + 5V

outputs level: -5V ... + 5V

outputs impedance: 1 kOhm

module depth: 3 cm or 1,5 inches

power consumption: +45 /-45 mA at +/-12 Vdc, +50 /-50 mA at +/-15 Vdc

Notes: Building on the familiar dual VCO core arrangement of Carrier and Modulator, Mindphaser is a complex oscillator which departs from this bit of ancestral DNA with a modern toolkit focused on searing, phase-modulated leads, percussive basslines and other-worldly effects!

A diverse palette of intermodulation and harmonic experimentation is offered through the Modulation Bus, its unique Waveshaper and the dedicated Thru-zero Phase Modulation Bus. An intuitive interface provides colour-coded visual feedback and responsive indication while performing in dimly-lit environments.

Two precision analogue oscillator cores

Precision, wide-range V/oct ramp cores, each ranging from deep subsonic to supersonic frequencies (ramp cores, and not triangular, deliver the ideal waveforms for analogue phase accumulation in the TZ-PM Bus)
Each core generates fundamental waveshapes which interact and mangle one-another through the complex Modulation Bus and TZ-PM bus
Simultaneous waveform outputs for each base shape
Dedicated button to toggle between RAMP or SAW for each core, inverting the phase of the ramp output
V/oct, linear FM and exponential FM inputs which are all independent of the TZ-PM functionality. The Carrier's FM occurs inside the core itself, separate from the TZ-PM bus.
DC-coupled linear FM

Carrier

The heartbeat of Mindphaser, focused on audio-rate generation. Drives the WAVESHAPER and TZ-PM bus. This core's frequency range spans the audible spectrum.

- An external hard SYNC IN forcibly resets the core, useful for punchy sequences, percussive basslines and drum synthesis -- or to sync to another VCO.

- Coarse and fine controls conveniently span the audible spectrum. Ranges further with external CV.

Modulator

An extremely wide range oscillator, spanning from deep LFO frequencies all the way up to supersonic sound! Four base waveforms and diverse internal routing options form a versatile palette of modulations for the CARRIER to feed on.

- Activating hard SYNC on the Modulator locks its core to the Carrier's heartbeat. The effect can be dramatic. Try this while phase modulating!

- Octave RANGE switch lets you quickly flick up and down between octaves. All the way beyond audio-rate and LFO speed octaves. Perfect for experimenting with different PM sidebands and taming the wide frequency range of the Modulator.

- Manual PW (Pulse Width) control and dedicated CV input for PWM.

Waveshaper

This isn't a classic waveshaper! Developed anew from the ground up, this waveshaper is focused on deep harmonic experimentation and audio obliteration. Each waveshaper parameter is capable of being "turned up to 11".

FOLD up to 5 octaves above the fundamental Carrier frequency. A ceiling forms at maximum, imparting additional harmonics.

FEEDBACK the waveshaped and phase-modulated audio through a signal path internal to the waveshaper.

AMPLITUDE modulation spans thru-zero, allowing for full-range ring modulation effects with bipolar CV or audio signals.

CLIP the final stage of amplitude with the switch to introduce a last stage of harmonics before the complex signal exits through the final OUT.

Switchable inverting attenuators on each CV input, for quickly inverting the behaviour of your modulation. The indicator illuminates red to tell you the attenuator has been inverted.

Two distinct waveshaping modes

A press of the shape switch toggles Mindphaser between RAMPOID (green) and TRIANGULAR (yellow) waveshaping modes.

These modes have a remarkable effect on the behaviour of wavefolding and overall character of the final complex OUT, in addition to TZ-PM Bus character.

RAMPOID mode folds more asymmetrically, with raucous, buzzing harmonic artefacts as you sweep and introduce TZ-PM

TRIANGULAR mode folds more symmetric, splitting the complex sine wave at its peak centre of the waveform. TZ-PM character is less raucous, and more smooth.

TZ-PM Bus

Thru-zero phase modulation in the ANALOGUE realm! Unlike its digital counterpart, analogue TZ-PM has its own character we've come to expect from analogue circuitry!

A dedicated, voltage-controlled phase modulation bus completely separate from the Mod Bus
Modulator's SINE wave normalled to the PM SOURCE input
SOURCE input allows you to modulate phase with any signal you patch in
Dedicated voltage-controlled INDEX (amount)
Manual phase lets you zero in (or not!) on the base phase before introducing modulation
Independent of the Linear FM circuitry in the Carrier core

Mod Bus

The internal modulation powerhouse, normally fed by the Modulator core, but external signals are patchable as well.

Select from the PULSE, RAMP/SAW or SINE output of the MODULATOR, or inject your own SOURCE to the bus.

Voltage-controlled INDEX behaves like a macro control when combined with various amounts and polarities dialled in at each CV destination.

Internal sends include the Carrier's classic Linear FM, Amplitude, Feedback and TZ-PM Index, with variable amounts and polarities!

Modulator waveforms internally feeding the Mod Bus behave unipolarly, for predictable modulation of every Mod Bus destination, without external patching. By patching in one of the Modulator's bipolar waveform outputs manually (or any external signal), you can override this behaviour.

Dimensions
30 HP
24 mm deep

Current Draw
110 mA +12V
100 mA -12V

Notes: Designed with versatility in mind, the Fold 6 is a six-stage wavefolder with simultaneous series and parallel outputs, dual signal inputs and voltage-controlled folding and overdrive shaping.

Supplier's Notes:
Often considered to be the opposite of filters within a modular system, wavefolders are designed to fold a signal over itself multiple times. This generates additional harmonics, resulting in rich timbres.

While there is a bewildering array of filter types within the synthesiser world, most wavefolders fall within only a few categories. Diode wavefolders in particular come in just two variants: series and parallel circuit topologies. Choosing a specific folder also means being limited to specific sounds and capabilities.

For the first time, Fold 6 puts forward a 6-stage hybrid series/parallel topology, yielding a greater sonic palette than ever in just 4 HP. Having both main (series) and alternate (parallel) outputs means a single module now gives access to just about all wavefolding tones imaginable.

To take things even further, an integrated symmetrical soft clipper limits the output signals to approximately 10 Vpp, keeping the amplitude within typical Eurorack levels and making it easier to create overdriven sounds at high fold ratios. This clipping stage can be driven continuously using the shape parameter, smoothly transforming the folded waveforms into pulse waves for even more harmonic content.

Two signal inputs are included, to mix audio signals or add in a DC voltage for asymmetric folding. The symmetry can also be manually controlled using the dedicated knob. Of course, both fold and shape parameters feature voltage control, to enable continuous timbral modulation.

Moving beyond simple signal processing, Fold 6 also lends itself perfectly for feedback patching, CV folding or frequency multiplication; its modest size belies the sonic capabilities within.

Notes: Arkan

Dual Voltage Polarizer

You may have heard this before: "You can never have enough VCAs". A voltage polarizer (also known as a bipolar VCA or a 4-quadrant multiplier) is often viewed as the VCA better suited for CV. As it can be used as a unipolar VCA and it allows you to invert a signal when it is modulated with a negative voltage. Resulting in interesting movements in your modulations.

What sets Arkan apart from other voltage polarizers is the curvature control, a feature usually only seen in unipolar VCAs. By taking a different approach to the classic voltage polarizer circuitry, Malstrom have devised a unique solution that provides a new way to shape your audio and CV. The non-linearity of the polarizer also makes Arkan really good at reaching silence when presented with a 0V CV signal.

At audio rate, Arkan acts as a ring-modulator with four controls to change timbres.

Boosting adds odd harmonics (symmetrical distortion), while offsetting adds even harmonics (asymmetrical distortion). The modulation curve changes ring modulation sharpness, and modulation strength determines the carrier dominance.

Two identical channels with carefully selected features will make Arkan your go-to modulation control hub. Arkan is especially useful for common utility duties such as mixing, scaling, inverting and offsetting. As well as CV modulation, feedback patching, and waveshaping. All this makes Arkan a very versatile tool that will certainly have a place in your patch!

Features (per channel)

- Input attenuation with inverter switch gives you more precision and range, with voltage inversion and quick silencing.
- Bias input with attenuverter control to offset your input signal or mix/invert another signal.
- CV input with curvature control allows you to shape the polarizer and improve its 0V attenuation.
- CV modulation control to fade in the modulator, allowing you to determine the amount of modulation.
- Voltage gain and polarity led indicators showing you exactly what is happening under the radar.
- Output normalled internally and externally (to other Arkans) to easily mix signals.

Additional features

Optional signal boost (x4 / +12dB) via switch on the PCB to increase voltages when needed.
5V or 10V voltage reference selection for bias voltage and CV input range to adjust Arkan to your system.

Dimensions
- 8HP.
- 28mm, Skiff-friendly.

Power consumption
- 90mA @ +12V.
- 85mA @ -12V.

I/O specs

- All inputs DC coupled.
- All inputs handle audio signals.
- All inputs have 100k input impedance. - All inputs have +-10V Input range.
- CV range +-5V or +-10V.
- Bias Voltage range +-5V or +-10V.
- Boost gain x1 or x4.
- All inputs are overvoltage protected.
- Keyed power header.
- Reverse power protection.

Notes: 6HP Micromodule of MI Warps.

Notes: Babel is a tool for creating massive intermodulation, and a workhorse for analogue logic, depending on your use and interpretation of its function. It provides three inputs, which can be arbitrarily increased with the chainable expander (see below). For each of those inputs, Babel outputs the maximum value (ANY), the minimum value (ALL), and the balanced middle value (XSOME), which follows along the centre values of the input waves. What CENTER means is adjustable via knob and CV control. XSOME is particularly interesting, as it has the same general shape as a multiplication function, but with sharper edges. What this means it that Babel will create ring-mod like intermodulation-but with extra harmonics like those produced with a wavefolder, and with an arbitrary number of inputs, instead of just two.

When viewed as a logic module, Babel takes any group of truth values and tells you whether any of them are true (ANY, the equivalent of "or" with just two values), whether all of them are true (ALL, the equivalent of "and" with just two values), and whether some, but not all of them are true (XSOME, the equivalent of "xor" with just two values). Turn CENTER all the way to the right for 0-+5V logic, or leave it cantered for -5V-+5V logic-handy when your "logic" modules are really LFOs.

Specs

Size: 6HP
Depth: 22mm
Power Consumption: +12V 44mA -12V 44mA
Output Swing: -10V-+10V peak
Input Range: -10V-+10V peak
Input Impedance: 30kO
Output Impedance: 150O
Output Drive: 2kO (min), 20kO+ (ideal)

Notes: Loquelic Iteritas is a digital VCO with interpretations of three classic synthesis algorithms involving dual pitch control. It creates a huge variety of sounds parameterized by four tone and two pitch controls.

It has had glowing reviews from Surgeon and Surachai, and I am personally very excited about this module!

It has a simple interface, with 3 different synthesis algorithms allied to a number of different controls / CV inputs which have different effects, depending on which mode you choose. Simply hook up a number of modulation sources to the 4 inputs and start wiggling!

Rev.2 now features an additional sync input.

Size: 10HP Eurorack
Depth: 1.5 Inches
Power: 2x8 Eurorack
Draw +12V: 150 / 80
Draw -12: 5 / 5
Draw +5v: 0 / 90

Notes: Versatile triple multi-mode filter with neat performance options, including individual outputs for the three channels, plenty of independent frequency control, a master shift control and lots of CV options.

Supplier's Notes:
Versatile triple multimode VCF capable of subtle to extreme tone shaping without losing the performance availability.

The three channels have dedicated outputs, as well as a mix output.

Multiple combinations of frequencies drawings are possible.

It was designed to create a movement to the sound thanks to the individual frequencies voltage control inputs.

Each channel is able to sweep through all the frequency spectrum.

A dedicated shift control with attenuverter cv input is able to swap all 3 filtres at the same time.

The Vibrazum shines at high feedback with 24dB slope, the resonance is well compensated and performative, even taking it to the extreme will not go out of control.

It sounds very "creamy" and full of rich harmonics from a gnarly tone-0shaping tool of sonic destruction, vowel robotic sounds, acid basslines, resonant percussive sounds and more...

Simple layout without compromising the wide range of sonic possibilities.

Specs:

Width: 14hp
Depth: Skiff-friendly
Current draw: +12V: <65mA, -12V: <68 mA

Notes: The Triple Waveshaper (TWS) is a non-linear modifier which can transform a sawtooth wave into a sine wave. This classic module incorporates three independent waveshapers for modifying synthesizer waveforms or for processing signals from preamplified instruments. Although originally designed as a waveshaper for early Serge oscillators, this module has been found to be a excellent modifier of electronic and acoustic sounds, and is highly recommended for subtle timbral modifications beyond the range of simple oscillator/filter patches.

The R*S version extends the classic TWS concept:

+1: An additional (4th) waveshaper has been added (right after the first / bottom waveshaper) that can be dialed in smoothly using the +1 knob. Turned down (CCW) the bottom section acts as in the original (as if that additional waveshaper would not exist). Turned up (CW) the bottom section is actually 2 waveshapers in series.

Switches to link the 3 sections - bottom to top. Using these switches all sections can be set to act in series, starting at the bottom and ending at the top, providing the combined effect of 3 to 4 waveshapers (or anything in between) using the +1 knob.

Linking only the middle and top section and turning the +1 knob up (to have 2 sections in the bottom) allows you to use the module for isntance as two independent 2-stage waveshapers (using bottom in and out for one and middle in and top out for the other) - e.g. for stereo processing.

Notes: VastWave is a complex analogue Oscillator with advanced waveshaping capabilities that invites new textural and harmonic exploration beyond subtractive synthesis principles.

Crossfading between harmonically rich folded waveforms and waveforms with Odd/Even harmonics, the VastWave waveshaper expands on the Principal Oscillator heritage, bringing an additional set of waveforms with Odd and Even harmonics and a pulse waveform derived from the Waveshaper's Final output stage.

Furthermore the linear FM input has a dedicated VCA for external FM amplitude modulation and an on board linear Glide delivers a more musical approach to this classic feature.

Features:

Voltage controlled complex waveshaping.
Triangle core.
FM input with voltage controlled amplitude for FM amplitude modulation.
On board linear Glide.
Voltage controlled Pulse-width modulation for Pulse and Final Pls waveforms.
Modern temperature and tuning stability.
High Frequency (VCO) or Low Frequency (LFO) operation.
External Timbre input with sine wave normalization if no external source is patched.
Attenuator/inverter knobs on all voltage controlled inputs.
Inverted or double Sawthooth waveform (selectable by jumper).


Specs:

Width: 16HP
Depth: 33mm
Power consumption: ###mA +12 / ###mA -12
Eurorack Format
Doepfer power connection

Notes: The Fold Processor is a voltage-controlled wave multiplier and sub-octave generator. The circuit is based on a classic diode design that adds odd harmonics by folding the incoming signal, followed by subdivided square waves.

The wave folder creates new waveforms from standard sine, triangle, sawtooth, and square waves and includes a CV input with an attenuator, making it very easy to create beautifully animated folding sounds. Adjustable voltage-controlled Inject alters the bias point creating an even wider palette of sounds.

The subdivide generator squares the fold output generating 4 more sounds spaced one octave apart, each with its own gain knob and mixed to the Subdivide output jack. Mixing the four can create anything from discordant square wave swarms to sweet harmonic oscillator stacks, from a stable square version of the folded wave to freaky PLL-like glitched slides.

Overall results can sound evil at times and sweet at others, a true multi-faced devil.

Size: 12HP
Depth: 31mm
Power: +12V 60ma / -12V 55ma

Notes: C4RBN is a 4/2-pole state variable filter with input saturation, output wavefolding and more. It offers a wide range of characters, from nice and clean filter sounds to screaming, squeaky, sounds.

An innovative input saturation circuit and the output wavefolder of WMD's classic SYNCHRODYNE filter bring great sonic flexibility.

Features:

3 independent 2 pole outputs for High Pass, Low Pass, and Bandpass
Inverting Attenuator (attenuverter) for FM allows for positive and negative CV control over the cutoff frequency
Independent 4 Pole output with switchable frequency response
Input Saturation with 3 switchable levels and CV input for additional fine control
PING circuit generates a fast decay envelope emulating the response of a vactrol
Output wavefolder for extra bite and screaming character
Resonance with self oscillation
Temperature compensated 1V/Oct tracking.
Performance focused control scheme allows for on-the-fly changes of filter types with intention

Power consumption: 92mA at +12V and 82mA at -12V

Depth: 38mm

HP : 4

Notes: Part of Xaoc's Leibniz Binary Subsystem, the updated Drezno ADC/DAC module builds on the original with higher resolution converters, allowing you to use it for pitch quantisation.

Supplier's Notes:
Drezno II is an improved version of the original Drezno module. It is an essential member of the 8-bit Xaoc Devices Leibniz Binary Subsystem. The Leibniz subsystem is a family of modules that operate on 8 binary (two-state, on/off) signals. These signals are arranged as 8 bits of digital data and may represent analogue signals and voltages, or they may be whatever you want them to be (clocks, gates, rhythms, etc.).

Drezno features an ADC (analogue-to-digital-converter) and DAC (digital-to-analogue-converter), allowing it to act as an analog front-end of the system. In other words, Drezno allows one to convert analogue signals and CVs into digital numbers, as well as to obtain analogue signals back from some other digital numbers (or 8 binary signals). Between these two conversions there is a whole universe of digital shenanigans waiting to happen resulting in all kinds of signal transformations and modulations.

Both (ADC and DAC) sections of Drezno can work independently, or they can be linked. Input and output range of analogue signals may be adjusted using Gain and Offset sliders. Individual bit outputs (for the ADC) and inputs (DAC) allow for extensive cross-patching and the creation of complex waveforms and rhythms. A very fast clock (up to 2MHz) at which the conversions are performed may be replaced with any external clock (for each section separately).

Compared to its predecessor, Drezno II uses new converters of much higher resolution which results in much lower noise floor and higher accuracy. The lower bits are much more stable than before. It is easy now to use Drezno for quantizing pitch voltages with accurate results with 128 or 256 semitone steps. Potentiometer ranges are factory calibrated for precise chromatic scale. A new switch on the front panel allows the user to select the calibrated range of 10Vpp or 20Vpp, so that the lowest bit or the second bit correspond to 1 semitone.

Technical details

Eurorack synth compatible
12hp, skiff friendly
Current draw: +80mA/-50mA
Reverse power protection

Notes: The Foldiplier is a 4hp odd/even harmonics generator with 2 different oscillating feedback paths. The folding core of the design originates from the odd harmonics (middle)section of the Serge Wave Multiplier. But the Foldiplier adds voltage control over the symmetry and offset as well as a switch for feedback, jumper selectable between, a transistor based oscillating fuzz inspired by the Hemmo Bazz Fuss with a lot more low harmonic content and a passive oscillating half wave rectification circuit with more high harmonic content. When these feedback oscillations mix with an incoming waveform some unpredictable and unique nonlinear timbres can be achieved. The module can also be used as a no-input experimental oscillator with the feedback switch engaged. All diodes in the module are silicon.

The Fold knob controls the amount of times the waveform is folded in on its self (indicated by the red led window below the knob). The C.V. knob below is an attenuator for incoming control voltage corresponding to the Fold jack(indicated by the red led window above the jack, it only responds to positive voltage). So, the Fold knob acts like an initial amount of folding depending on its position. For example, with the Fold knob fully clockwise you can get even more folds with a control voltage in at the Fold jack. The Offset knob controls how much positive DC voltage(0 to 5v, clockwise) or negative(0 to -5v counter clockwise) DC voltage(indicated by the led window above the Offset jack, red for positive, yellow for negative) injected into the waveform via the Symmetry knob. With the Offset knob position at noon(0v) there will little effect from the Symmetry knob. The Offset jack is expecting +5v to -5v with knob position at noon to scan through the positive and negative voltage. The Symmetry knob controls the amount of negative or positive offset voltage(dependent on the Offset knob) mixed with the waveform(indicated by the yellow led window above the Symmetry jack). If positive voltage is mixed with incoming waveform more folds will occur on the positive troughs of the waveform, likewise, when negative voltage is introduced more folds happen on the negative troughs. This part of the circuit can also be broken down by thinking of the Offset as a voltage controlled crossfader swinging between positive and negative voltages into a VCA controlled by the Symmetry knob and jack. When a voltage is present at the Symmetry jack the Symmetry knob becomes an attenuator. The Symmetry jack only responds to positive voltage.

Width: 4hp
Panel Material: Double Sided PCB panel with Classic and Soulless
Reverse Power Protected
Current Consumption: +12v: 40mA, -12v: 35mA
Depth: 47mm or 1.75"
All through-hole build
Ships with M3 black nylon screws
Expandable: No