Synth modules

Notes: Another update for WMD's clever dual VCA, this time a little bigger to give more control. Digital control of CV and attenuation gives lots of creative options. Third time's a charm.

Supplier's Notes:
WMD have done several designs of this circuit over the years, the first one had no knobs, the second was too small, the MKIII is finally how this circuit should be packaged. This module does some really cool stuff and is super useful in any system.

The Digital VCA lets signal through like a normal VCA, but the CV and attenuation level is controlled digitally. This lets us do things like wait until there is a zero crossing to change the amplitude, resulting in clickless amplitude changes.

The Trigger mode causes the VCA to only update when a trigger is received. The addition of a noise circuit for each side let us do a very quick and easy sample and hold that never droops. With no input, 5V is normaled to the attenuator, so you get a 0-5V sample and hold. In Bipolar mode, you can get -5 to +5V.

Both sides have bipolar VCA mode (polarizer), which lets them invert the signal when negative CV comes in. Also known as ring modulation. With the zero crossing detector, this can produce some super wild wave shapes.

Features

Dual VCA Design
Unipolar or Bipolar Operation
DC Coupled Analogue Signal Path
Low Distortion / Low Noise
VCA Closes Completely
Zero Crossing Detector Mode
Trigger Mode
Two Independent Noise Sources
8 bit CV resolution
Great for Fast Envelopes and Sine Bass Sounds

Specifications

Power: +65mA, -45mA
Width: 8HP
Depth: 35mm with cables
Height: Eurorack 3U (128.5mm)
Board Height Behind Panel: 112mm
CV/Signal Input Impedance: 100k
Output Impedance: 1k
UPD in 3.3V Threshold Schmitt Trigger
ZCD produces 15us 5V pulse
5V CV to fully open VCA
Linear VCA response
20Vpp signal handling

Notes: Noise's 'simple' take on delay is anything but simple. Three-tap stereo design with wave folding, DJ-style filtering and extensive CV control. Versatile and characterful.

Supplier's Notes:
Delay. Fold. Pitch shift. Doom. Repeat repeat.

Yester Versio is the long-awaited answer to the request for a simple delay on the Versio platform. Yester Versio is a three-tap delay designed to be straightforward and easy to control. It's perfect to help glue together almost any patch, with just enough character to stand out if that's what you want.

Yester Versio comes with controls over panning, delay feedback, and delay time, but Noise Engineering didn't stop there. The Time control interacts with the Even/Triplet/Dotted switch, allowing for flexible delay syncing. These also work with the Tap button and jack input, making it easy to sync Yester to the rest of your patch and create interesting rhythms.

Use the DJ-style filter to shape your delays. Add flavor with Chorus, a bipolar control that adds a bit of clean pitch shifting or LFO-modulated effects. Turn up Fold for some gentle saturation, then gritty wavefolding, and at the top of the knob, to add in chaotic suboctaves for a bit of doom.

And of course, because it is a Versio, almost everything can be CV controlled.

Yester Versio is the delay you will keep coming back to...back to...back to...

YV is part of Noise Engineering's Versio stereo DSP platform. A simple USB connection will allow you to update to a variety of effects firmwares. Open-source support is available through libDaisy, which allows you to write your own firmware!

Notes: Delay. Fold. Pitch shift. Doom. Repeat repeat.

Yester Versio is the long-awaited answer to the request for a simple delay on the Versio platform. Yester Versio is a three-tap delay designed to be straightforward and easy to control. It's perfect to help glue together almost any patch, with just enough character to stand out if that's what you want.

Yester Versio comes with controls over panning, delay feedback, and delay time, but Noise Engineering didn't stop there. The Time control interacts with the Even/Triplet/Dotted switch, allowing for flexible delay syncing. These also work with the Tap button and jack input, making it easy to sync Yester to the rest of your patch and create interesting rhythms.

Use the DJ-style filter to shape your delays. Add flavor with Chorus, a bipolar control that adds a bit of clean pitch shifting or LFO-modulated effects. Turn up Fold for some gentle saturation, then gritty wavefolding, and at the top of the knob, to add in chaotic suboctaves for a bit of doom.
And of course, because it is a Versio, almost everything can be CV controlled.

Yester Versio is the delay you will keep coming back to...back to...back to...

YV is part of our Versio stereo DSP platform. A simple USB connection will allow you to update to a variety of effects firmwares. Open-source support is available through libDaisy, which allows you to write your own firmware!

Notes: The OpticTone is a combination of a 12dB multi-mode Vactrol Filter and a Vactrol Voltage Controlled Amplifier.

It is a completely original circuit inspired by the singular nature of Vactrols and their fluid and natural character.

The Filter section provides the three fundamental filter types: Lowpass, Bandpass and Highpass.

A Resonance knob with voltage control input is available for improved modulation flexibility. The feedback knob interacts with the Resonance path, tempering it from creamy resonance to wacky self-oscillation.

Filter and VCA run in parallel, both are controlled by the Freq/Amp knob and it's associated voltage-control input. The combination of both signals can be crossfaded with a dedicated knob.

The Freq/Amp is also controlled with direct touch control on the panel via the 3 lines below the knob.

The filter frequency control can be inverted by the Inv Freq switch, providing the possibility to change the filter direction. This feature allows the filter to "close" when the VCA is "opening" or the other way around.

The Ping input allows to generate the well known vactrol filter percussive sounds if a gate or trigger signal is provided. The Ping frequency if controlled by the Freq/Amp knob, ranging from low kicks drums to high pitch bongos.

There is also a Drive knob to take care of your saturation needs. The Overdrive range is wide, from soft textural clipping to heavy distortion.

All voltage controlled inputs have an attenuator-inverter knob.

Features:

Vatrol based 12dB multi-mode Voltage Controlled Filter: Lowpass, Bandpass and Highpass.
Vactrol Based Voltage Controlled Amplifier.
Crossfade between VCF and VCA section.
Voltage controlled Resonance.
Ping Input for percussive sounds generation.
Cutoff Frequency polarity inversion switch. Doesn't change VCA polarity
Overdrive and Feedback controls.
Attenuator/inverter knobs on all voltage controlled inputs
Touch control over Frequency and Amplitude.


Specs:

Width: 10HP
Depth: 33mm
Power consumption: 55mA +12 / 55mA -12
Eurorack Format
Doepfer power connection

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: Designed with versatility in mind, MapVolt is a dual-channel Universal Voltage Processor built for flexibility in handling audio and CV signals.

With only 6hp, Mapvolt is a multipurpose tool for voltage-controlled scaling, inverting, offsetting, subtracting, and mixing functions.

Each channel of MapVolt can operate in either Polarizer or Attenuator mode, allowing manual control via knobs or CV signals. In Polarizer mode, it functions as a Voltage Controlled Attenuator-Inverter, granting control over signal level and polarity. Additionally, it can be used as a Four-Quadrant Multiplier or Ring Modulator for audio signals, with the processor input serving as the carrier signal and the polarizer's CV input acting as the modulator.

In Attenuator mode, MapVolt operates as a VCA, providing control over signal levels. Its VCA CV input range of +5/-5 makes it well-suited for amplitude modulation (AM) with other +/-5V waveforms.

MapVolt is equipped with dedicated Voltage Offset knobs for each channel, which can be controlled via CV. If no input is patched into the Processor input channel, the Voltage Offset knobs can be used as Offset Generators.

With its dedicated mixing stage, MapVolt enables the combination of both channels into a shared output. Furthermore, if one of the processor channels is inverted, it allows for the subtraction of one signal from the other.

Dimensions
6 HP
33 mm deep

Current Draw
65 mA +12V
65 mA -12V

Notes: Hugely powerful multi-engine synth module, offering up to eight voices and eight oscillators, sample playback, custom wavetables and much more. Ultra versatile.

Supplier's Notes:
8 full voice polyphonic, multipart, multi engine synthesizer module with sample playback, sweet reverb and chorus.

Create pads, basslines, riffs and drums. All in one module.

Group voices into parts and assign each voice a different engine or parameter settings to create complex patches.

Features:

Big Sound

Lots of computing power to deliver rich sounding engines, in an 8 voice package.
One voice can have 8 oscillators depending on the engine, which means up to 64 oscillators at the same time!

Polyphonic

Coral features 8 full voices with independent filter, amplifier and modulation envelopes per voice.
Individual FX sends and individual parameter can be set per voice!

Multiengine

Different sound engines can be assigned to each voice from the 10 available.
New engines will be available through firmware updates.

Multipart

The 8 voices can be freely split into different parts. Every single parameter (filter, envelope settings, engine, FX sends, pan, etc.) can be independently set for each part or voice to create complex patches out of the box.

Sample playback

CORAL supports almost any kind of wav file: 16, 24 and 32 bit mono and stereo files, no limit to playback time!
Add overdrive to your samples, sculpt them using the filter and envelopes, pitch them up and down in tune and even modulate the sample file or folder in real time using the CV inputs or CC MIDI commands!

Custom wavetables

You can load any wavetable .wav file to the SD card for the Wavetable engine. The wavetable can be morphed in 3 dimensions. Use our OXI Wave APP to create and edit 3D wavetables.

MIDI Integration

Control any part's parameter via MIDI CC, from FXs sends to sample selection.
Combine it with CV signals for a killer compact combo.

Effects

Space engine to create deep atmospheres and rich ensemble chorus.
Every effect send can be set per voice

Notes: A Juno-inspired oscillator module? We're flattered, but credit has to go to Roland for this one. Based on the Juno-106's digitally-controlled analogue oscillators, the Castor & Pollux modernises the 80s design with a built-in LFO and hard sync.

Supplier's Notes:
Twins that dance in and out of phase, never completely together but never fully apart, bound to each other in the infinite universe.

Castor & Pollux is a dual oscillator that echoes back to the legendary Roland Juno but shines with its own unique, massive voice. It contains two digitally-controlled analogue oscillators implemented using a faithfully modernized version of the original Juno 106 design. It builds on the classic '80s sounds of its inspiration by using the second oscillator and internal LFO to layer in thick detuned sounds and harmonically complex hard synced waveforms.

Castor & Pollux II brings a redesigned interface and moves individual waveform outputs to an included expansion. Both versions have the same features and use the same firmware.

14 HP
+12 V @ 100 mA, -12 V @ 35 mA
25 mm deep
2 separate oscillators
7 octave range
9 total outputs with waveform outputs and onboard mixers
Pitch CV input jacks (0 V to 6 V) and pitch knobs (-1 to +1 octave, configurable)
Pulse width CV input jacks and knobs
Hard sync
Hardware chorusing
Internal low-frequency oscillator (LFO)

Notes: ST Amp is a 1U stereo amplifier designed to boost your external signals into modular levels. The module is designed under the Intellijel 1U format and uses the same pinout, making it fully compatible with the Intelljel case's rear connectors.

Features

Stereo amplifier and signal booster.
Three selectable gain modes: x1, x5 and x10
Level meter LEDs
Fully compatible with Intellijel's 7U and Palette cases.
1U Intellijel format.

Specs

Current needs: +12V: 30mA, -12V: 30mA
Width: 10 HP
Depth: 37mm (including power connector)
Aluminium, heat-treated front panel
Designed, kits prepared and completed modules assembled in Barcelona

Notes: STMix is a four-channel stereo mixer in 28hp and 1U format. It can work independently or as an expansion of Befaco's Hexmix module via the six-pin connector located in the back. The module is designed under the Intellijel 1U format.

Features

Four channels stereo inputs with volume control.
AC Coupled inputs to improve audio performance.
Output clipping LED indicators.
Connector at the back to interface with the Hexmix module.
1U Intellijel format

Specs:

Current needs: +12V: 30mA, -12V: 30mA
Width: 28 HP
Depth: 20mm (including power connector)
Aluminium, heat-treated front panel
Designed, kits prepared and completed modules assembled in Barcelona

Notes: An expander module for Rossum's powerhouse Assimil8or sampler module, the Locutus provides MIDI in, out and thru connections over 5-pin DIN sockets, letting you take full control of the module alongside other MIDI gear.

Supplier's notes:
Locutus is designed to interface Assimil8or with MIDI instruments, controllers, and sequencers to provide multichannel modulation and new polyphonic possibilities.

Locutus includes a special cable to connect to the Assimil8or CPU behind the panel.

Locutus is 6 HP wide and 25mm deep.

More pricing and availability information is coming soon.

Locutus is on display in the MIDI Association booth #9901 at NAMM 2023 where Locutus and Assimil8or will be performing with a Rossum SP-1200 Reissue, an Oberheim OB-X8, and other new and vintage MIDI-equipped instruments.

MIDI Association booth #9901 is dedicated to the MIDI@40 Lifetime Achievement Award winners, including Rossum Electro-Music co-founder Dave Rossum.

From the MIDI Association: "At Saturday's anniversary celebration, lifetime achievement awards will be presented to (or posthumously honour) legendary music industry innovators who created the modern music production environment of synths, drum machines, and sequencers, including Bob Moog, Don Buchla, Ikutaro Kakehashi, Tsutomu Katoh, Roger Linn, Tom Oberheim, Alan Pearlman, Dave Rossum, and Dave Smith."

Notes: dsp.cpoffee's custom everything-including-kitchen-sink dsp development platform.

At the core of this is an Electrosmith Daisy Patch Submodule, combined with a 12-bit 4 channel SPI DAC [DAC7554], and supporting hardware for more IO

Features
- 8x pots normalled to +5V
- 8x CV in breaks normalled connection and pot acts as an attenuator
- 2x gate in
- 2x gate out
- High-fidelity stereo in/out (Daisy Patch Submodule, using an WM8731 codec)
- 2x 12-bit CV out from Daisy Patch Submodule, scaled to -5v to 10v
- 4x 12-bit CV (or lofi audio w/ some hacking) from external DAC7554, scaled to -7v to 7v
- TRS MIDI in/out (in is auto-sensing for type a/b)
- SD card slot
- Expansion header for +5v, +3v3, SPI, UART, I2C, and USB connections

Notes: YYS is a super useful spin on the 4x2 matrix mixer. Instead of comparatively boring unipolar attenuators to send to the destination channels, attenuverters were used. This allows combinations of DC signals that can cancel each other out to make interesting new waveforms, and with audio signals can cause strange stereo cancellations. dsp.coffee also included inverted outputs and bipolar LEDs as a bonus.

Features:
- 4 inputs with 2 attenuverters to send to output A or B
- Inverted outputs that follow A / B
- Bipolar LEDs for monitoring

Notes: Yep, it's an attenuator. With a fancy name! And LEDs!

Sinc Defero's inputs are circularly normalled, too, so you can use it as a mult by leaving inputs unpatched.

Features:

Size and power:

4HP Eurorack
+12v: 45mA
-12v: 40mA
Sinc - from Old English sinc for "treasure" and Greek clastic for "easily removable"

Defero - from Latin for "sloping down"

"Portable treasure reduction"

What's in the box:

Module
Power cable
To reduce excess materials, screws will no longer be included with Noise Engineering's modules beginning in 2023.

Notes: A fresh twist on a simple 303-style acid synth, featuring a triangle/sawtooth/square wave VCO, multi-mode resonant filter, simple AD envelope and a VCA which can be overdriven. Excellent value.

Supplier's Notes:
ADDAC started this module with the idea of developing a complex drum source however, somewhere along the process, it was clear how much better it performed as a synth voice and this lucky accident was embraced.

It features a VCO with a [FREQUENCY] and [FINE TUNE] knob plus a dedicated CV Input and Attenuator knob (tunable over 4 octaves).

The VCO waveform output is achieved by selecting either a Triangle or Saw through a switch. the selected waveform can then be mixed/balanced against the square wave. The resulting mix is then sent to the Filter.

The Filter features a [CUTOFF] and [RESO] resonance knob plus a Cutoff CV Input and Attenuverter knob.

A 3 position switch is used to select the filter type: Highpass, Bandpass or Lowpass.

The resulting output is then sent to the VCA.

The VCA features an Input with [INPUT GAIN] knob which at maximum can amplify the incoming signal by a factor of 2.

This is a very important control, it accepts any signal Trigger, Gate or CV. Whatever input is plugged in the signal is then fed through an AD with a very short attack and controllable decay through the [VCA DECAY] knob plus the CV Input and Attenuverter knob. The resulting slewed signal is then used to control the VCA gain.

This signal is also sent to the CV OUTPUT as well as the LED monitor.

The Accent input adds to the Input signal creating a different amplitude output.


The CV OUTPUT is normalled to the Frequency and Cutoff inputs.

Tech Specs:
9HP
4cm deep
80mA +12V
80mA -12V

The [INPUT GAIN] knob

Usually Attack/Decay envelopes have a maximum voltage of +5v, no matter if the input gate is +5v or above the AD will clip at +5v. In this case, this clipping method was not used, and instead ADDAC allowed the incoming voltage to determine the maximum AD voltage, meaning that if a +5v gate is present then the AD maximum voltage will be +5v but if a gate of +10v is sent then the AD maximum voltage will be +10v.
This also means that with higher input voltages the decay, although falling at the same speed, will be longer than with lower voltages as it has a longer range to go back to 0v.

As previously mentioned, The [INPUT GAIN] knob can amplify the incoming input by a factor of 2, allowing to use a standard +5v gate or envelope and being able to make the resultant AD go up to +10v.

The AD signal is responsible for opening the VCA. Up to +5v the VCA will open to unity gain above this value the VCA will start to amplify and eventually saturate and distort. This saturation will add harmonics to the signal which will change its gentle timbrical nature to a more unique and peculiar timbre that will make the module shine in Acid contexts.

Adding high levels of Resonance or even filter self oscillation in combination with high VCA saturation will create even more harmonics that ADDAC highly encourage the user to explore.

Notes: The 2CVADD-HQ is a dual precision adder especially for adding 1V/octave (pitch-controlling) CVs. This makes it possible e.g. to transpose a sequence. Compared to general purpose CV mixers (like POLAMIX), this module does the summing of the CVs very precise (within a few millivolts), so the desired pitch is not affected.

The module offers three CV inputs for each of the both units; the first unit has an additional fourth input where the CV is subtracted - meaning "transposition downwards".

If you would like to have transposition buttons to shift by one or two octaves (or a free offset), take a look at the CVADDER-HQ module.

Notes: The CVADDER-HQ is a precision adder especially for adding 1V/octave (pitch-controlling) CVs. This makes it possible e.g. to transpose a sequence. Compared to general purpose CV mixers (like POLAMIX), this module does the summing of the CVs very precise (within a few millivolts), so the desired pitch is not affected.

The module offers four CV inputs where three of them are summed, and the CV at the fourth input is subtracted - meaning "transposition downwards".

This module also allows transposing the incoming CV by one or two octaves or a variable offset by buttons.

A separate output provides the voltage of the internal transposition (+1, +2 octaves / free).

If the transposition buttons are not necessary and you prefer to have a dual precision adder, take a look at the 2CVADD-HQ module.

Notes: The CVSHIFTER module is the AE version of the well-known analogue shift register modules that are around in the modular world since a long time. It works like this: The CV input is sampled with each trigger input signal and this CV is sent to the CV 1 output; at the same time, all CV outputs 1-4 are shifted by one.

Compared to the "classic" circuits, this module is digital based and therefore doesn't suffer from drift as some analogue ASRs and S&Hs do. The result is, that you can e.g. control the pitch of up to four oscillators which is a first step into polyphony.

The CVSHIFTER module offers three modes:

Classic: Each trigger shifts the CV outs by one position, the new CV goes to output CV 1
Cycle: Each trigger sends the CV to the next output channel, restarting at out 1; additionally a gate signal at the according output.
Random: The CVs are sent in random order to one of the four outputs, plus a gate at the according output.

Notes: LED Meter is a handy utility module designed to show audio levels. Three color versions are available:

- green colour with yellow-red peak segments.
- all blue colour
- all yellow colour

There are total 30 led segments, each one roughly corresponds to 1 dB of level, so it is 30 dB of measurement level available with this module.
The module has an input for the signal to be displayed, and its buffered copy is sent to the output for further processing, so no external splitter is needed.
Two trimmers are accessible via holes on the front panel: left trimmer adjusts brightness and right trimmer is used for the level adjustment. So the module can represent full scale signals ranging from 1 V to 12 V.
There is operation mode jumper on the back side. When the jumper is installed - bipolar operation is active, and when the jumper is removed - ordinary audio meter is active.

Dimensions
4 HP
40 mm deep

Current Draw
150 mA +12V
20 mA -12V

Notes: The Erica Synths Envelope Generator 2 is a re-triggerable, looping envelope generator with some unconventional features that are very useful for experimental setups. What sets the Black EG2 apart from other envelope generators is its optional GATE LENGTH setting, which allows for generating full ADSR envelopes even if a short trigger is used at the input. Likewise, in LOOP mode, the module outputs a full ADSR envelope instead of a classical AD envelope. The gate length is both manual and CV controlled, which allows for using this envelope generator in compact modular setups controlled by trigger sequencers only.

SPECS:

Gate input level 3...10V
Envelope amplitude 0...10V
Attack time 0...7,4"
Decay time 0...19"
Sustain level 0...10V
Release time 0...17"
Gate length 0...3,7"
Panel width 8HP
Module depth 25mm
Power consumption 29mA@+12V, 33mA@-12V

LOOP/SINGLE

Select between SINGLE SHOT or LOOP modes. When the internal gate is o , the rise and fall times are set via the A and R knobs. When the internal gate is on, all knobs have an e ect on the envelope shape.

The LED gives visual feedback on the envelope state.
GATE ON
Engage the internal gate and you have a full ADSR envelope in loop mode and with a trigger applied to the trigger input in single mode.

G. LENGTH

Set the internal gate length manually

LENGTH CV

This is the internal gate length CV input.

The CV is added to the gate length potentiometer setting

GATE

This is the GATE input

A / D / S / R

These knobs adjust envelope stage times and sustain level

TRIGGER

This is the TRIGGER input. You can retrigger the envelope and start the attack stage again, even if the gate is still high (see Figure 1).

If you wish to use the envelope generator with an internal gate, patch the incoming trigger signal here. The internal gate is linked to the trigger input, not the gate input.

EG OUT

This is the envelope generator output.

Notes: The Erica Synths Black DADSR (Delay-Attack-Decay-Sustain-Release) is a fully analogue envelope generator that gives you extended control over events in your modular synth. It's a looping exponential envelope generator that has voltage control over each stage of the envelope. An independent Gate Delay section adds extra functionality to design advanced soundscapes, like delayed modulation e ects, wave morphing, etc.

SPECS:
Attack time (with max CV) 0...2,5" (4,4")
Decay time (with max CV) 0...5" (12")
Sustain level 0...10V
Release time (with max CV) 0...4,5" (10")
Gate delay time 0,7"
CV level (full sweep) -5V - +5V
Panel width 10HP
Module depth 30mm
Power consumption 42mA@+12V, 58mA@-12V


ATTACK
Set the attack time of the envelope

GATE
Patch the gate signal here to start the envelope. If nothing is patched here, the gate input is normalled to the gate

DELAY OUT
CV ATTENUATORS
These are CV attenuators for attack, sustain and release stages

SUSTAIN
Set the sustain level of the envelope

GATE DEL
Set the gate delay time

TRIGG
You can retrigger the envelope at any stage by applying trigger signal here. The trigger alone initiates an AD envelope instead of ADSR

DELAY OUT
This is the gate delay output. The gate delay section can be used independently to control other modules in your modular setup

D GATE
If you wish to use gate delay functionality, patch the gate signal here

BP OUT
This is the bipolar output - the CV here is centered against 0V and this output serves as an LFO

EG OUT
This is the envelope generator output

M. GATE
This is the manual gate button. A built in LED gives a visual reference of the output voltage

RELEASE
Set the release time of the envelope

DECAY
Set the decay time of the envelope

LOOP
This is a LOOP switch. When it's ON, the envelope generator outputs a signal for which the rise time is defined by the Attack setting and the fall time is defined by the Release knob setting.

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


Inspired by the legendary Moog CP3 mixer, the 713 tweaks the old-school discrete circuits into three stereo inputs and one mono channel, summing to stereo with adjustable feedback and clipping to add character.

Supplier's Notes:
ADDAC713 is the stereo version of ADDAC System's 703 Discrete Mixer.

Inspired by Moog's CP3 mixer, this is a fully discrete analogue mixer and it's not, by any means, your standard breakfast mixer, although it can behave like one.

This is a wolf in sheep's clothing. Despite its harmless looks there's a dark snarly soul behind that panel that wants to take your sounds into a realm of gritty gnarly growls.

This new version was initially thought of as a percussion mixer, with mono inputs and panning, to allow placing percussive voices in the stereo field, while keeping channel 4 in mono for low end sources like a kick drum or Bass. In the development process ADDAC System slightly changed this initial idea, adding stereo inputs for the first 3 channels, but still kept the 4th channel in mono.

All four [GAIN] controls go to extreme levels, the first 3channels also feature [PAN] controls. Feedback is used to overdrive the whole mix. As the control is turned clockwise the sound will be clipped harder until it goes completely off, this happens as feedback is increased the audio bias reference also moves up, at extreme levels it offsets the whole signal upwards until it completely goes above the top rail clipping the whole signal hence the resulting gate effect.

The [MASTER OUTPUT] sets the overall output gain of the mixer, the two leds monitor the audio output signal. The Soft clipping switch engages an anti-click circuit which adds a low pass before the output, the switch allows 3 states: Soft low pass / Off / Hard low pass.

Features:

Three channels with stereo inputs, gain and pan knob
One channel with mono input and gainknob
Feedback/gate knob
Master output volume knob
Soft clipping switch
Two Led Monitors for Left and Right channels

Tech Specs:

8HP
4cm deep
80mA +12V
80mA -12V

Notes: Great value from 4ms's twist on the Stereo Triggered Sampler module, this time capable of playing and manipulating stereo or mono WAV files from an SD card.

Supplier's Notes:
The Sampler is a variation of the Stereo Triggered Sampler.

Record, play and loop stereo .wav files with an SD Card. Includes the same 2022 Sampler Pack from the Stereo Triggered Sampler.

Features:

The Sampler plays stereo or mono .wav files from an SD Card. Samples are arranged into banks by placing .wav files into folders (each folder is a bank). A maximum of 10 samples can be loaded in a bank. There is a maximum of 60 banks (600 samples maximum total).
Sample files are limited to 4GB each, which is over 6 hours at 44k/16b/stereo.

Hundreds of samples included on microSD card
Extremely quiet, low noise and low jitter design
Stereo or Mono output

A knob and CV jack selects the Sample to play, and the Start Position knob and CV jack control where in the sample playback will begin. The Length knob and CV jack determine how much of the sample is played back: from tiny grains, to percussive hits, to longer loops... or just the entire file.

Pressing Play or firing a trigger into the Play Trig jack will play the sample. Holding the Play button down for a second will toggle looping.

There's also a Reverse button and jack for backwards playback, and an End Out jack for synchronizing loops, or cascading sample playback with other events.

To record samples, hold Play and Reverse for two seconds. Press Play again or fire a trigger into the Play/Rec Trig jack to start and stop recording. Each recording will create a new stereo 48kHz 24bit .wav file in the current bank's folder. Recordings can be as long as your card has the capacity for: a 256GB card is 18 days of continuous recording (432.9 hours). Audio data is split into maximum 4GB wav files on the microSD card.

Play button/trigger jack: Tapping the button or receiving a trigger starts/re-starts the sample
Sample CV/knob: select which sample within the channel's bank
Pitch CV and Pitch knob: playback pitch (-10 to +4 octave range)
Start Pos CV/knob: position in the sample to begin playback (loop start point)
Length CV/knob: playback time (loop end point)
Length knob at max: entire file is played
Length knob 50%-99%: 200ms - 5s of the sample is played (beginning at the Start Position)
Length knob <50%: Percussive decay envelope is applied to the playback (attack-only envelope if playing Reverse)
Length <1%: Tiny grains are played (can be used to sweep through sample file data manually)
Reverse button/jack: toggles forward/backwards
Bank button: selects channel's bank
Reverse + Start Pos button/knob combo allows for setting volume of playback
Maximum file size for playback: 4GB per file (6.7 hours per file at 44.1kHz/16b/stereo)
microSD Card is hot-swappable when Busy light is off: no power-down required to change cards.
Samples that are pre-loaded into memory can continue playing while card is swapped.

File Organization:

Using a computer, the intuitive automatic bank loading features make dragging and dropping your entire sample library a snap. No files need to be renamed. Just create folders and put up to 10 samples in each. If you want a folder to be associated with a particular colour of the Bank button, name the folder a colour name (such as "Blue - Loops").

Ships with a high-speed 16GB microSD card, loaded with hundreds of samples created for 4ms, from musicians such as Richard Devine, Wobbly, Moor Mother, Robert Aiki Aubrey Lowe, Joseph Pailo, Russell E.L. Butler, Hugo Paris & Marc Kate, Paul Barker, Baseck, Animal Collective, Cristian Vogel, Jay E, Marcus Fischer, Chris Carter, Daedelus, Nero Bellum, Anna Sitko, Thomas Fang, Bogdan Raczynski, and more (Sample List)

Intuitive bank/colour organization system; no need to rename your wav files
Record new samples directly to a bank with the Record Input jacks...
... or drag your folders of sound files onto the microSD card, and each folder will become a bank.
Folders starting with a colour name will be loaded into that colour bank
Example "Blue - Frooty Loops" will load into the Blue bank
Sub-folders are ignored, only folders in the root directory are scanned for wav files
Works best with UHS Speed Class 3 cards with |3| symbol printed on the card

Specs:

Electrical and Mechanical Specifications:
Module Size:
16 HP Eurorack format module
10-pin Eurorack power header
1.3" (33mm) maximum depth with power cable
Power consumption:
+12V: 135mA
-12V: 41mA
+5V rail: not used
Connect red stripe of power cable towards the bottom of the module, which is marked with a white stripe and the words -12V and POWER
Audio Inputs:
20Hz to 10kHz (+/-0.1dB); -6dB rolloff @ 20kHz
21V peak-to-peak maximum before clipping
Audio Outputs:
0Hz (DC) to 22kHz with maximum -1.8dB difference between file data and output
+10.5V to -10.5V maximum output
Trigger inputs:
Latency: 0.7us typical

Included with the Sampler:
16GB micro SD card (class 10)
SD adaptor
10-to-16 pin power cable
M3 Knurlie screws

Notes: Pan and cross fade up to three signals with AJH's versatile Triple Cross. Four different modes allow you to set up the three channels in numerous ways, for both audio and CV processing.

Supplier's Notes:
The Tone Science Triple Cross module is a design collaboration between electronic musician/composer Ian Boddy and AJH Synth.

It features three independant cross fader and panner channels, and it can be used with both audio and CV signals. Each of the channels can be configured in one of four different ways:

1) One In, One out Linear VCA

2) Two in, One out crossfader

3) One in, Two out panner,

4) Two in, Two out cross fader & reversing panner combined.

Audio rate modulation can also be used on the CV inputs to create Ring modulation and Cross modulation type sounds. Each channel has a dedicated Fade control, CV input, and CV Level attenuverter. These can be used together to bias incoming CV signals.

The L1 and L2 outputs from channels 1 and 2 are normalised to channel 3's inputs, which also have their own level controls to balance incoming signals. This allows very interesting, complex fading and panning between four different input sources, to either Mono or Stereo outputs..

The Triple Cross is very versatile, yet relatively simple to understand and use. However, as they say "knowledge is power", so do spend a little time reading about how to configure the channels in the four different modes, and how to combine all three channels together to create a super-powerful Four to Two to One cross fader.
Each of the three channels can be configured in four different ways, and all three can be used simultaneously. They do not all have to be in the same mode, so we could for example use channel 1 as a cross fader, channel 2 as a Panner for completely different signals, and channel 3 as a Linear VCA, again for different signals.

Specifications

Effective CV Range for CV-1, CV-2 and CV-3 is 0 to +5V with attenuverter fully clockwise or 0 to -5V with attenuverter fully anticlockwise.
Maximum permissible CV Range for CV-1, CV-2 and CV-3 is -12 to +12V
IN 1A to IN 3B Input levels -5V to +5V, levels up to +/-10V are possible however some clipping may occur.
Module Width: 14hp
Module Depth: 26mm (Including power lead)
Current Usage: 80mA Positive, 72mA Negative

Notes: The Tone Science Triple Cross module is a design collaboration between electronic musician/composer Ian Boddy and AJH Synth.

It features three independant cross fader and panner channels, and it can be used with both audio and CV signals. Each of the channels can be configured in one of four different ways:

1) One In, One out Linear VCA

2) Two in, One out crossfader

3) One in, Two out panner,

4) Two in, Two out cross fader & reversing panner combined.

Audio rate modulation can also be used on the CV inputs to create Ring modulation and Cross modulation type sounds. Each channel has a dedicated Fade control, CV input, and CV Level attenuverter. These can be used together to bias incoming CV signals.

The L1 and L2 outputs from channels 1 and 2 are normalised to channel 3's inputs, which also have their own level controls to balance incoming signals. This allows very interesting, complex fading and panning between four different input sources, to either Mono or Stereo outputs..

The Triple Cross is very versatile, yet relatively simple to understand and use. However, as they say "knowledge is power", so do spend a little time reading about how to configure the channels in the four different modes, and how to combine all three channels together to create a super-powerful Four to Two to One cross fader.
Each of the three channels can be configured in four different ways, and all three can be used simultaneously. They do not all have to be in the same mode, so we could for example use channel 1 as a cross fader, channel 2 as a Panner for completely different signals, and channel 3 as a Linear VCA, again for different signals.

Specifications

Effective CV Range for CV-1, CV-2 and CV-3 is 0 to +5V with attenuverter fully clockwise or 0 to -5V with attenuverter fully anticlockwise.
Maximum permissible CV Range for CV-1, CV-2 and CV-3 is -12 to +12V
IN 1A to IN 3B Input levels -5V to +5V, levels up to +/-10V are possible however some clipping may occur.
Module Width: 14hp
Module Depth: 26mm (Including power lead)
Current Usage: 80mA Positive, 72mA Negative

Notes: Designed to be a highly customizable connection matrix, 3DVCA packs a boat load of utility into a small 6HP package. Four VCAs share the three macro controls: X, Y, and Z. As a group, they shape incoming and outgoing signals and emulate the coordinates of a point in 3 dimensional space. This allow the VCAs to work together in a mono, stereo, or quad configuration and accomplish a variety of mixing, crossfading, and panning functions.

3DVCA is designed to be used in the following functions:

Quad monophonic crossfader
Dual stereo crossfader
Stereo balancer
Stereo VCA
Mono to stereo panner
Unity mixer with up to eight inputs
Quadraphonic panner

Each output has a dedicated SUM input which allows an external signal to be automatically mixed into the output signal. This allows 3DVCA to daisy chain both with other mixers and other 3DVCAs. For example, you can create a full mono, stereo, or quadraphonic mix by plugging the output of each 3DVCA into the sum inputs of the next 3DVCA in the chain. Using this method, a set of 3DVCAs can create a fully voltage controlled and decentralized mixer which ties together anything from a small skiff to a monster synth.

When 3DVCA works as a crossfader or panner, the X and Y parameters follow an equal-power curve that keep output signals at the same volume no matter how many inputs are mixed together. This is in contrast to the Z parameter which follows a linear curve to always behave predictably with external modulation sources. All inputs are fully DC coupled in order to work with modulation speed signals as well as static DC voltage sequences; this means that 3DVCA can handle any sort of signal that you throw at it. All op amps in the device employ rail-to-rail inputs and outputs to enable the largest headroom when mixing many different signals together.

Whether you need to maximize your mixing functionality in the smallest possible footprint or have the most control over every aspect of your system, 3DVCA provides a ton of functionality in any system. Enter a higher dimension of sound with the Mystic Circuits 3DVCA.

Dimensions
6 HP
30 mm deep

Current Draw
45 mA +12V
45 mA -12V

Notes: Describing Univer Inter as merely a MIDI-to-CV module falls short of its immense potential. It serves as an all-encompassing MIDI-to-any-format converter, elegantly packed into a compact 6 HP unit. Connect to your gear via USB B or TRS MIDI, or use the included adapter to plug straight into those 5-pin DIN connecters we all know and love. Whether you're looking to map clock, note, CC, aftertouch or something else that MIDI can encode, UI can do it: we built in over 20 settings for each of the 8 outputs.

Want to control a pair of monophonic voices, complete with velocity and aftertouch? No problem. How about a polyphonic setup, with gate and pitch per voice? Easy. Need to synchronize an in-the-rack sequencer with your DAW or a MIDI clock? UI has you covered.

Eight outputs isn't enough, you say? Chain two UI together via their front-panel MIDI ports and a TRS cable for 16 - you read that right, 16 - configurable CV outputs from a single MIDI connection. The possibilities are endless.

Noise Engineering also made configuration simple via the front-panel USB connection and the easy-to-use Univer Inter section on the Noise Engineering Customer Portal. Go wild and set each channel to any output option you need, or just use one of our simple presets. Configuration files can also be saved as sysex files for easy backup and sharing.

Features

Size and Power
6HP Eurorack
+12v: 40mA
-12v: 10mA

Univer - from Latin: "Universe"

Inter - from Latin: "between"

"Between universes"

What's in the box:
Module
Power cable
5-pin MIDI to TRS cable
USB A to B cable

To reduce excess materials, screws will no longer be included with Noise Engineering modules beginning in 2023.

Notes: Describing Univer Inter as merely a MIDI-to-CV module falls short of its immense potential. It serves as an all-encompassing MIDI-to-any-format converter, elegantly packed into a compact 6 HP unit. Connect to your gear via USB B or TRS MIDI, or use the included adapter to plug straight into those 5-pin DIN connecters we all know and love. Whether you're looking to map clock, note, CC, aftertouch or something else that MIDI can encode, UI can do it: we built in over 20 settings for each of the 8 outputs.

Want to control a pair of monophonic voices, complete with velocity and aftertouch? No problem. How about a polyphonic setup, with gate and pitch per voice? Easy. Need to synchronize an in-the-rack sequencer with your DAW or a MIDI clock? UI has you covered.

Eight outputs isn't enough, you say? Chain two UI together via their front-panel MIDI ports and a TRS cable for 16 - you read that right, 16 - configurable CV outputs from a single MIDI connection. The possibilities are endless.

Noise Engineering also made configuration simple via the front-panel USB connection and the easy-to-use Univer Inter section on the Noise Engineering Customer Portal. Go wild and set each channel to any output option you need, or just use one of our simple presets. Configuration files can also be saved as sysex files for easy backup and sharing.

Features

Size and Power
6HP Eurorack
+12v: 40mA
-12v: 10mA

Univer - from Latin: "Universe"

Inter - from Latin: "between"

"Between universes"

What's in the box:
Module
Power cable
5-pin MIDI to TRS cable
USB A to B cable

To reduce excess materials, screws will no longer be included with Noise Engineering modules beginning in 2023.

Notes: The Z2040 is TipTop Audio's redesign of the most famous analogue filter from the polysynths of the 80's and features Tiptop Audio's signature lush, big, and creamy sound. Its frequency sweeps make thick bass lines and leads with great dynamics. When modulated with audio frequencies through its various inputs, the Z2040 gets quite colourful and is capable of creating many new sounds and textures as the forces of the incoming waves and their harmonics blend through the filter's non-linear circuit. When set with Resonance feedback fully up, the Z2040 transforms into a pure sine-core VC-Oscillator, great for making snappy percussive elements and whistling sounds.

A look under the hood will find that the heart of the Z2040 is a discrete design 4-pole low pass filter with a core similar to that of the SSM2040 filter chip, used in the 80's Prophet 5 Rev 2 synthesizer, and its brother the SSM2044, used in the famous early EMU samplers and PPG synthesizers of the 80's. Both filters are considered by many to be, "the best sounding filter ever".

The Z2040's four modulation inputs are built to handle CV and audio signals, enabling deep modulation of the filter core and passing signals. A VC resonance input is provided to modulate and even clip the sine wave produced by the filter feedback loop. A Frequency Modulation input (FM) provides dynamic filter sweeps and the unique VC-FM index allows modulation of the incoming FM signals. On top of that, the Z2040 comes with an audio VCA that can be configured to act upon the input or the output of the filter.

Size: 8HP
Depth: 42mm
Power: +12V 20ma / -12V 20ma

Notes: WAYOUT8 is a patchbay module for Eurorack systems used to group your DAW inputs and outputs, or manage signals going from one case to another. Wayout8 is grounded, meaning that even if nothing is plugged into the inputs your outputs are still grounded and will not pick up noise. The module is made so it can be mounted two ways, with outputs on the left or right, whichever is the most ergonomic placement in your case. All eight channels are passive so they do not modify your signals and can be used for audio and CV Gate. No power is required.

Size: 6HP
Depth: 10mm
No Power Required

Notes: The BXx2 is a dual channel preamp, EQ and mixer based on the classic Boss BX series mixers. With the inclusion of both input gain and level controls, each channel can be overdriven, producing the signature saturated and lively sound the BX mixers are known for. The EQ controls provide the channels with simple but great sounding high and low shelf EQs for emphasising and shaping sounds and an additional 'Aux' input allows another mixer or extra sound source to be chained in.

Input gain controls

Sets the input gain of the channel preamp. Higher settings will cause source to overdrive the channel.

Inputs

In 1 - Input to channel 1 of the mixer.

In 2 - Input to channel 2 of the mixer.

Aux - Auxillary mix input for chaining with another mixer or extra source.

Fixed gain (-6dB).

EQ High

Sets the gain of the fixed high shelf EQ. Boosts high frequencies when set above 12 o'clock and cuts when set below.

EQ Low

Sets the gain of the fixed low shelf EQ. Boosts low frequencies when set above 12 o'clock and cuts when set below.

Level

Sets the channel level in the mix. Use level controls to trim back volume when overdriving the preamp.

Output

Audio output producing the mix of the 3 inputs.

Technical specifications

Power: +12V 10mA / -12V 10mA
Size: 8HP
Depth: 32mm

The BXx2 was designed in collaboration with Feedback Modules and is based on their single channel 'PRE BX' module.

Notes: The 'Stereo Sum' is a unity gain summing mixer that features four stereo input pairs summed as pairs to two independent mix outs or all as a single combined mix. It is a useful utility for efficiently combining outputs of multiple stereo sources, such as the MEGA-TANG and Jumble Henge mixers or multiple MFX returns. The inputs accept stereo or mono signals (via normalisation) which can be audio or CV (module is DC coupled) and the top mixer's outputs are normalised to the bottom mixer section meaning if the upper output is left unpatched the two upper inputs will be added to the lower output.

Stereo input pairs

Stereo inputs. Can be used with audio or CV (inputs are DC coupled).

Left ins normalised to Right for mono signals.

Stereo mix output 1

Stereo mix output. Normalised to bottom mixer section if ouput is left unpatched.

Stereo input pairs

Stereo inputs. Can be used with audio or CV (inputs are DC coupled).
Left ins normalised to Right for mono signals.

Stereo mix output 2

Final stereo mix output.

Technical specifications

Power: +12V 8ma / -12V 8ma
Size: 4HP
Depth: 32mm

Notes: Introducing a limited edition re-release of this iconic electronic instrument in a modular format.

This limited edition of 75 units is a tribute to the pioneering work of Dutch musician and instrument maker Michel Waiswisz (1949 - 2008), who first invented the Cracklebox with Geert Hamelberg in the late 1960s.

The Cracklebox was a small, handheld device designed as a way to explore new sonic territories. It was one of the first electronic musical instruments to use circuit bending techniques in the creation of electronic music. It allowed musicians to manipulate and control electronic circuits in real-time, creating a wide range of unique and experimental sounds. He used a circuit from a toy piano as the basis for the instrument, and then added a series of touch-sensitive pads that were connected to the circuit. When a player touched one of the pads, the circuit would be completed, producing a crackling sound.

The Cracklebox was probably the first commercially available portable self-powered alternative 'keyboard' analogue electronic instrument with inbuilt loudspeaker.

In the 1970s about 4000 Crackleboxes were built and sold by STEIM in Amsterdam.

Nowadays many people refer to the The Cracklebox as the archetype of 'glitch' or 'circuit bending'.

In the decades since its invention, the Cracklebox has continued to be an important and influential instrument in the world of electronic music. It is still in use today, and is considered a classic example of the potential of electronic music to create unique and innovative sounds.

This Eurorack recreation includes a 9v battery, swappable through the front panel, this allows to isolate the current flowing through the user's fingers from the Eurorack frame PSU, protecting the user from undesired electrical shocks. The internal speaker has been removed, a transformer has been used instead to isolate the output signal.

The output generated can be used as an audio, as a gate or a cv signal, when using it as a cv source, due to the specific qualities of the signal, users may want to send it through other modules as slews, sample and holds, quantizers to tame/control it's peculiar cv output.

Controls:

- The module features an on/off switch to turn off the 9v battery (remember to turn it off when you turn off your Eurorack system).
- A Power Starve knob, reduces the 9v voltage feeding the circuitry changing it's overall timbre/pitch
- An Output Gain knob to control the output volume.
- A Boost switch to add more presence to the signal.

Tech Specs:

12HP
5.5 cm deep
20mA +12V
20mA -12V
9v battery required

Notes: Drawing inspiration from the MMI Maxima, the MMI Helios is intended as a middle ground between the gestural control surface of the Maxima and the fingertip control of the smaller MMI.

Less density, but a much higher degree of patch control is the key point of the Helios, which complements other MMI devices very well, and can be joined with other Helios (Helii?) to form larger and creative control surfaces.

The design is greatly simplified compared to the original MMI, with only two I/O jacks - either can function as input and output, and their interaction with each other is determined by touching both plates simultaneously to form a connection, or in cooperation with other MMI devices.

Available in a "right" and "left" version - one is an exact mirror image of the other, which makes it suitable for having two units adjacent to one another.

Dimensions
8 HP

Notes: The Herzlich Man Machine Interface - a beloved instrument, but what if there was even more of it? An MMI with more than one dimension? An MMI arranged in a manner of... matrix?

With operation identical to it's little brother, the MMI Matrix allows the user to patch inputs to outputs by connecting zig-zagged patterns together with fingers, fruits, cables, pizza slices or any other conductive source. The labyrinth patterns will immediately connect the zig-zags immediately adjacent, whether above and below, or on each side. Furthermore, the two labyrinths within labyrinths will connect ALL adjacent inputs and outputs, which may lead to beautiful disasters or otherworldly insights.

As with its predecessor, the MMI Matrix is fully touch and pressure sensitive, reacting to the amount of pressure exerted, the amount of skin connecting, and the resistive quality of your body. Incredibly easy to perform with, the MMI Matrix offers new and far more advanced ways to patch your performances, whether CV, triggers or audio signals. Create reverb swells that vary between different types of reverb, use multiple fingers and labyrinth patterns to mix trigger signals into complex polyrhythms or create beautiful chords by combining various pitch inputs with a chord oscillator. The MMI Matrix also integrates very well with it's little brother, so there is absolutely no need to hold back!

Oh, and as always, it uses NO power! But it will take up 10hp of space in your system. A fair deal!

Dimensions
10 HP
14 mm deep

Current Draw
Module does not draw current

Notes: The MMI Maxima is the final word in MMI technology. Beautiful gold patterns form gradients of touch sensitive surface areas, each connected to an input/output. Drag, rub, pinch or tap your fingers across to form connections, and create evocative and unique performances. Utilize the various pattern densities and shapes in your performance, or create installations with whatever conductive material is to hand.

Operation is easy: simply plug any audio, LFO, CV, trigger, gate, offset or clock into any of the inputs on the front panel, and connect one or several outputs to destinations in your system. The symbols near the sockets correspond to the shapes on the panel, and all that remains is for you to form the connection between the desired symbols with your hand, or any other conductive object you may have. Connect multiple at the same time to achieve liquid, gradual mixing, evolving rhythmic patterns, mixed LFOs and more. Furthermore, touch the pressure plates more firmly or in more dense areas to form stronger connections - in practice, this means a signal will pass with more or less intensity, based on the pressure you apply.

There are countless possibilities here: the shapes make it easy to memorize your patch, and the many inputs and outputs allow for enormous creativity. Eight inputs and one output? No problem. Maybe you want eight outputs sharing one input? Also no problem. Why not patch in an offset voltage, and then use the pressure sensitivity to sweep a filter with the offset patched into the filter resonance CV control? Or maybe create volume swells by patching audio into a VCA, or even an effect, for reverb or delay swells. Maybe you want to create chords, crescendos or chaotic and swiftly changing drum patterns?

Although practice helps, there are no rules for playing the MMI Maxima. Use it upside down or downside up, rack it, tape it to your body or drill it into your guitar and use it with the expression input on your pedals (yes, this is actually possible. Seriously.) With no external power needed, it makes an excellent performance companion for any system, big or small, modular, semi-modular or even not-modular-at-all.

Intended as a controller for musicians and non-musicians alike, the purpose of the MMI Maxima is to put emphasis on your performance and expression, rather than your competence at the ivory keys or dexterity at a drum pad. Let your hands, slices of pickled cucumber or other conductive everyday objects do the talking, through a combination of clever patching and expressive play - with the MMI Maxima, you have a performance tool unlike any other at your disposal.

The MMI Maxima comes in a custom case, and does not require external power to operate. Enjoy the Maxima either as a standalone controller, or rack it in your system if you desire.

Dimensions
30 HP
30 mm deep

Current Draw
Module does not draw current

Notes: The Om is a slim, passive 2hp LPG with characterful resonance. Taking notes from its bigger brother, the Omen, the Om offers similarly beautiful resonant LPG action in half the size and skiff-friendly depth.

In a convergence of old-school LPG design and more modern components, the Om boasts a single -6dB resonant filter, custom hand-built vactrol and no less than three cutoff modes designed to inspire your next sounds.

Although the little brother of the Omen, the Om brings a distinct sound to the table. Do not mistake the Om for an Omen sawn in half, as they will both provide musically interesting and useful sounds to your setup.

Exactly as with the Omen, care has been taken to create a circuit with near-zero audio bleed and the best possible characteristics for a passive LPG. Of course, many of the natural features of vactrols remain, such as subtle memory effect when engaging the vactrol for long periods.

Finally, you receive maximum blinkenlights as an LED on the front panel simulates the action of the vactrol, so you'll always know what's going on under the hood. No collection of fancy LPG's is complete without the Om(en)!

Notes: You want less sound, and you want it fast. You want a mute that doesn't take up any power, a mute that doesn't take up a lot of space, and a mute that accepts three signals. You want a mute that's nice and clicky, and a mute that doesn't cost an arm and a leg.

You've found it.

Dimensions
2 HP

Current Draw
Module does not draw current

Notes: In recent years, stereo signal paths have increasingly found their way into the wonderful world of Eurorack synthesis - so naturally, utilities should follow suit. Introducing the Herzlich PSA, a simple solution to a problem you might not even realize you had. Far from just useful as an attenuator for audio sources in mixdowns, the PSA can also be used to bring audio down to more managable levels (such as line level), attenuate multiple signals simultaneously (like increasing the modulation depth of two LFO's at the same time! It's like having two hands, but with one hand!) and even function as a multiple: Attenuator 1 is normalled to Attenuator 2, so multing your stereo signal (or two mono signals) while attenuating the two signals individually is easy as pie.

There's not much else to say, except that it's passive, and draws no power - and it looks great!

Dimensions
4 HP

Current Draw
Module does not draw current

Notes: You've been up all night in a bidding war on eBay to win a prized 80s rack effect unit - you can't wait to add some serious cheese to your tracks, and the sound of gated reverbs ring in your ears. Your heart pounds, and your pulse rises to crescendo as you win the auction! But there is one problem: your Eurorack system runs way too hot to simply plug straight into your stereo FX units. Your heart sinks, as you realize there is not much you can do that doesn't involve a lot of messing around with complicated and weird mono modules. That is, until now: introducing the Herzlich SFXI.

The Stereo FX Integrator was designed in response to my own need: owning several cool stereo FX units, and having no easy way to integrate them with an easy send and return, in my Eurorack system. Attenuate your Eurorack signals down to line level, or even all the way down to instrument level, and get a nice, clean boost back up to modular levels, with this dead simple and highly useful device from the R&D department at Herzlich Labs.

You can even use it to integrate external stereo line level signals into your Eurorack, which is both nice and convenient, and also useful. Finally, you have an easy way to get the sound of your JV1080 into your Clouds.

The scientists have been working overtime to produce this unit, and were fed extra rations of maize and millet gruel just to bring you this circuit. Every SFXI sold will grant the poor souls at Herzlich Labs another serving of maize and millet gruel. Please think of the poor scientists at Herzlich Labs.

Dimensions
4 HP

Current Draw
30 mA +12V
30 mA -12V
0 mA 5V

Notes: The Herzlich 4x4 Switched Passive Matrix Mixer is a fresh dose of hot old school synth flavor right into your signal chain - inspired by the Buchla and Synthi matrix mixers of yore, the Herzlich 4x4 Passive Switched Matrix Mixer will give you all the joys of an old school matrix mixer, and none of the pesky conveniences of a modern one!

Looking for a super clean, powered matrix mixer that will treat your signals with velvet gloves and behave with mind-numbingly boring predictability? Then you've taken a wrong turn, and instead of finding the pristine tedium you sought, you have uncovered a sleeping beast, an uncut diamond the size of a bell pepper and an all-red rainbow all in one. No power needed, and a super slim profile for even the shallowest skiff user.

The Switched Passive Matrix Mixer will set your heart ablaze with its glorious commitment to happy accidents and unapologetic jank. With absolutely no electronics to rein in the monster that resides in its circuitry, you will be delighted and shocked as you turn the knobs and click the switches, to find channels that bleed gently into each other, pots that alter channels other than their own, and switches that may take your desire to open and close them as suggestions rather than commands.

You'll think you've fallen asleep in the pale glow of your DAW and awoken to a nightmare at first, but very soon, you will discover it is a creative dream. Step into the shoes of the composers of yesteryear, and discover how your unintended accidents mixing CV or audio turn into beautiful and unexpected compositions. Find beauty in the strange interconnectedness of the switches and pots, as you try to brave and tame them. Reach synth transcendence with the psychedelic potential of passive matrix mixing, and open your heart to the multitudes of possibilities contained with the power of 70s circuit design.

Dimensions
20 HP
22 mm deep

Current Draw
Module does not draw current

Notes: When patching, you might feel inspired to add an effect mid patch - but how do you audition your new sound compared to the baseline, without a lot of continuous plugging and unplugging? The Bypass offers a solution. Quickly switch between the dry and wet signal output AND immediately hear the impact of your dynamics change, FX or EQ, switching back and forth at will.

The best part? It's a completely passive solution, drawing no power and requiring only an Intellijel 1U row. An invaluable tool for the studio, or the creative performer. The Bypass works similarly to an FX return circuit, taking a signal input and multiplying it to an output. A switch then allows the user to select either the dry input or the returned, wet input, for the final output.

Hand built, tested and guaranteed to take your abuse, the Bypass is the tool you wished you had in your arsenal yesterday - correct that mistake today!

Notes: You've been plugging, patching and sweeping for hours, when it hits you: you're not actually listening to what you're making. Up until this point, the sad reality of modular has been that your ears won't hear the sweet sounds of your music, unless you invest in a bloated, oversized output module or a professional mixer. This ends now.

The Herzlich Micro Phone Out is an active headphone output in only 2hp - and it includes a very pleasantly tactile volume slider! Gone are the days where you would have to spend untold hp on useful and clean headphone outputs, now all that remains is beautiful, small simplicity.

No stereo signals to process? No problem. The left channel automatically works as a mono input with nothing plugged into the right channel. Forget everything else - this is the one and only output module you'll need!

Dimensions
2 HP
34 mm deep

Notes: The Low Fat is a new 2hp Eurorack module by AJH Synth, it's a High Pass filter, with frequency control by either manual pot, and/or external CV with attenuator. It's intended to compliment other filters, particularly low pass VCF modules, in practical tasks such as removing excessive low frequencies, for example when the bass is swamping a mix. It can be switched between 6dB (1 pole) response and 12dB (2 pole) response.

By patching a CV signal to the FCV input it can be voltage-controlled and used musically as with any other VCF. When used in conjunction with a LP filter it forms a fully customisable band pass filter, allowing the range of passbands to be cherry-picked. Feeding in a 1V/Oct pitch CV and setting the FCV pot to a suitable level allows it to track an incoming pitch CV, so the amount of High Pass filtering remains constant as the pitch of the incoming VCOs traverse up and down the frequency range. This can be particularly useful in creating percussive sounds, such as snares and hats, but also on sequenced bass lines. Since it is only 2HP it's a great way to occupy one of those frustrating gaps in your eurorack modular case with something that is deceptively useful, and adds another dimension to the classic bass monster that is the Transistor Ladder Filter.

Dimensions:
2 HP
26 mm deep

Current Draw:
9 mA +12V
12 mA -12V
0 mA 5V

Notes: Designed to integrate sound sources from outside Eurorack, Verbos's Real World Interface offers three channels including built-in microphones, preamps, envelope followers and a frequency detector.

Supplier's Notes:
The Real World Interface is a 3-channel external processing module intended for connecting with sound sources outside the system. The channels are oriented as vertical channel strips. The left and right channels have a built-in condenser microphone, preamp, envelope follower with variable decay and gate extractor. In addition to a preamp, envelope follower and gate extractor, the centre channel also has an Automatic Gain Control (fixed high ratio compressor), fundamental extractor (tracking lowpass filter), frequency detector and locked oscillator. Internal microphones are useful for introducing electro acoustic room sounds into the modular. Envelope followers can be used to have external signal levels effect parameters such as filter cutoff or level for building dynamics processors. Gate extraction allows external sounds such as metronomes, clicks, claps or room sounds to advance sequencers, trigger sounds or initiate other events. The Frequency Detector can extract the pitch of simple monophonic sounds but is also a semi chaotic CV source in the tradition of such modules since their introduction in the 1960's. The Locked Oscillator plays a sine wave at the same pitch as the input signal.

Size: 18HP

Notes: Oof. Frap casually serve up one of the best filters we've seen in a long time. Quad multimode circuits with saturation and feedback give you extensive routing options. Delicious.

Supplier's Notes:
cunsa /'cu?nsa/ s.f. [dialect of Modena of uncertain etymology, probably from a Latin *comptiare, derived from comptus, participle of comere 'organize,' 'decorate'] i curing, seasoning (of foods), tanning (of leathers).

Seasoning is crucial for cooking. It is a process that enhances the flavors, glues the ingredients together, and even adds some unexpected kick.

From a gentle refining touch to a shovelful of spice, CUNSA is the perfect seasoning tool for your patches. It can sweeten a sour lead or beef up an insipid bass line, and anything in between.

And, just like a good oil, you can even taste it by itself!

CUNSA is a quadruple analog pingable multimode resonant filter, saturator, mixer, and oscillator.

It is Frap Tools' sound seasoning tool: it can gently even a patch, applying a final touch, or it can set it on fire with a ridiculous amount of spice. It's up to you and your cooking style!

It consists of four multimode resonant filters with a custom saturation and feedback control that you can use independently or in various combinations and roles thanks to a series of seminormalizations.

Four Analogue Resonant Multimode Filters

CUNSA features four state-variable filters that can be used independently or linked and mixed. Each filter provides three behaviors simultaneously: lowpass, bandpass, and highpass. Each behavior has a 12 dB/oct slope, except for the lowpass, which can be either 12 or 24 dB/oct.

Unique 'Character' Circuit for Feedback and Distortion

CUNSA handles feedback and gain staging with extreme control and versatility. Besides the usual Q control that emphasizes the cutoff frequency, the Character circuit defines the amount of soft clipping when the filter overloads. High clipping guarantees a controlled behavior with fat tone and pure resonance, while low or no clipping lets the signal saturate the filter stages and make it scream.

V/oct Tracking and Quadruple Oscillator

Each filter responds to the V/oct signal with excellent tracking. It is thus possible to move the cutoff frequency along with the main melody or make CUNSA resonate with no input and transform it into a multiple oscillator. The V/oct inputs are seminormalled so you can control more filters with the same CV. Easy chords stabs!

Ping and Ring

CUNSA is ideal for percussive and organic tones. The Ping circuit offers a behavior similar to the BRENSO but AC-coupled. Instead of shooting the frequency to the moon with any trig, CUNSA gently responds to different incoming gates with a selectable decay curve. The Ping circuit can thus create natural decay sounds when fed with trigs or smoother envelopes with any other voltage, like a linear integrator with a custom decay.

Besides this, you can also feed the filter's audio input with trigs and make it ring at high Q settings.

Linked or Individual Filtering

The four filters can work independently or arranged in groups through seminormalled inputs and sum outputs. CUNSA can thus be a 4×1, 2×2, or a massive 1×4 filter. Even odd configurations are possible, like 1+2+1 or 3+1. Mono, stereo, or quadraphonic audio is at your fingertips.

Filter and Combo Behaviour

When the filter behavior is set to COMBINED, every control of the cutoff frequency also affects the input VCA, reducing the signal amplitude and saturation as it approaches the lowest range. It can make organic decays with the ping circuit or tame the low range at high Q and Character settings.

Four Seminormalizations for Group Use

Four inputs have a cascaded seminormalization: audio inputs, VCA CV, V/oct, and Ping. Every signal patched to a filter will thus feed also those at its right, making simultaneous use even simpler. To remove a seminormalization, simply patch a dummy cable to the corresponding input.

Analog Mixing Stage and Group Outputs

Every filter output can be routed to an analogue mix bus that sums the four filters and outputs them in three combinations: all, 1+2, and 3+4. These outputs allow for versatile audio processing. Just like we did with FUMANA, we added a gentle shelving EQ for the higher frequencies of the All output to provide additional timbral variety.

CV Inputs with Attenuators

Besides the seminormalled inputs, every filter features additional CV inputs for cutoff frequency, Q, and Character, each with a dedicated attenuverter.

Notes: Combining the power of multi-oscillator wavetable synthesis with the percussive detail of sampled sounds, Pianophonic is a powerful hybrid synth engine featuring 8 voices of polyphony. Not limited to Piano sounds, the voice architecture of Pianophonic is extremely versatile and easy to use with the essential controls laid bare on the front panel, and the most significant CV inputs and outputs provided for full integration within eurorack patches.

Taking its inspiration from the wavetable/sampler keyboards of the 90s, Pianophonic revisits a lean and mean approach to digital sound creation but instead with 24bit 48Khz quality and fingertip control of the parameters that really matter.

With a built in SD card and an online re-synthesise utility, allowing users to create their own sound banks, the possibilities for sound exploration are limitless.

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: Part of Xaoc's Leibniz binary system, the Rostock is a digital delay line capable of processing triggers, audio, CV and video signals. Another useful module from the unique Leibniz series.

Supplier's Notes:
Rostock is a component of the Leibniz Binary Subsystem. It is a data pipeline, a FIFO (first in - first out) shift register, or a very short digital delay. The module operates similarly to a BBD delay or an ASR (analogue shift register), except that it is digital. It consists of a chain of memory cells that pass bits from one to another at each clock cycle. The delay length is variable from 1 to 64 stages (with optional looping and scrambling). It works by processing data in the Leibniz bus and must be connected to other Leibniz modules using data ribbon cables at the back. Rostock may process data sequences representing rhythms, control voltages, audio-rate signals, and even video signals because the bits can change at extreme rates (up to 2MHz). In addition, its memory may be digitally looped. Delaying and looping is a fundamental building block for sequence automation, pattern and chaos generation, and various cybernetic modular patches. Thus, Rostock is a multi-purpose open-ended device that invites creative thinking.

Technical details

Eurorack synth compatible
8hp, skiff friendly
Current draw: +70mA/-40mA
Reverse power protection

Notes: Add external feedback loops, tilt filters and more to the Timiszoara effects module with this versatile expander. A must-have for Timiszoara owners.

Supplier's Notes:
Deva is an expander for Xaoc Devices' Timiszoara multi-fx module designed for creative exploration of the dirty/nasty side of signal processing. Deva opens up the Timiszoara programs you've come to love with some unexpected twists and turns along the way. The analog side features two external feedback loops (for the left and right channel) with tilt filters adjustable via sliders with two additional switches for choosing positive or negative feedback (for each channel). The third slider controls the DAC clock - from overclocking by a factor of two down to 16-times slower, so you can go from chipmunk to hardcore teeth gnashing of underclocked goodness. A switch allows for turning the clock control off for normal/regular operation. All features have inputs for external CV.

Technical details

Eurorack synth compatible
8hp, skiff friendly
Power drawn from Timiszoara: +60mA/ -50mA
Reverse power protection