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Notes: Additive synthesis oscillator based on the concept of building up harmonics from sine waves. A complex idea nicely executed for ease of use.

Suppliers notes:
Odessa implements the principle of additive synthesis controlled by a set of carefully tailored macro parameters to harness thousands of sinusoidal partials that altogether form the resulting sound.

The interface is kept simple and accessible, so you can easily build rich and full, great sounding timbres of very complex spectra, that can be either harmonic or inharmonic. Even though inharmonic spectra yield non-periodic waveforms, all partials are frequency related to the common fundamental controlled by a V/oct input. The series of harmonics can be squeezed or spread apart, tilt, and pruned by a comb-like frequency response, resulting in a variety of unearthy sounds. Animating the comb response yields radical effects similar to flanging and phasing. Additional, often sought after features are implemented: through-zero linear frequency modulation, and unison detune: up to 5 copies of the sound can be spread apart for a fat and dense cluster of voices.

There are nine parameters, each controlled by a dedicated knob, so the workflow is as smooth and immediate as possible. Furthermore, every parameter has a dedicated CV input, allowing live animation for organic audio effects. Odessa sports two main outputs for banks of harmonic partials that can be further scaled in frequency, as well as an additional output that can either spit out a square wave or a single sinusoid of the fundamental frequency. Interesting spatial effects, crazy modulation feedbacks as well as synchronisation is possible that way.

The hardware is based on a powerful FPGA chip offering massive parallel computing. The synthesized signal is devoid of aliasing through the entire audio range thanks to intrinsically bandlimited algorithm. A simplified spectral analyser helps you to keep a visual track of what is actually happening to the harmonics.

For even more control over Odessa, you can use the Leibniz subsystem (or just the Lipsk) that can be connected to a header at the back of the module.

Notes: Another cracker from Xaoc, the Timiszoara is a take on digital multi-effects with stereo in and out, an intuitive interface and CV control of effect parameters. Big power with 176 factory programs.

Supplier's Notes:
Timiszoara is a stereo, Eurorack compatible, voltage-controlled multi-effect signal processor based on the popular Spin Semiconductor FV-1 DSP chip. It features a full stereo signal path with two adjustable audio inputs, two outputs, and a stereo voltage-controlled wet/dry mixer. In addition, there is a microSD memory card slot on the front panel that allows for loading factory and custom effects without any restrictions or copyright protection, which means you can use many effects available on the Internet and even create your own.

Effect programs are organized in banks of 8 and can be selected using a rotary encoder, as well as CV and trigger signals. Timiszoara features a crisp OLED screen that displays the program parameters and its name. It also facilitates navigating the list of banks. Up to three parameters per effect can be controlled from the front panel with illuminated slider potentiometers and dedicated CV inputs.

Xaoc Devices have prepared quite a few banks of algorithms (176 in total) that cover most effects needs: delays, reverbs, filters, modulation effects (such as choruses and flangers), pitch shifters, and, of course, shimmers (no multi-effects unit would be complete without its share of those). However, Xaoc Devices wanted to ensure that users had access to some more adventurous programs, so some special banks have been created to allow you to take a walk on the wild side.

For detailed description, please refer to the manual.

Technical details:

10hp, skiff friendly
Current draw: +120/-45 mA
Reverse power protection

Notes: The module is built around high quality VCA chips from THAT Corp, as well as low noise opamps. It offers clickless muting and equal loudness panning. The distinct feature is that voltage control is dynamically compressed should it yield clipping when pushed too hard. Also, in both modes the attenuators offer full closing of the corresponding channel, regardless of being controlled by the CV, or not. The VCAs fully open (0dB gain) at CV=8V in Env mode and CV=5V in LFO mode. All the input and output signal levels are Eurorack levels.

Multiple Praga units can be chained thanks to dedicated headers on the back. The mixed stereo sum of each unit in the chain is added to the mixing bus of all units downstream.

A dedicated Hrad expander will offer master volume control, gate inputs for channels muting/unmuting, headphone amplifier, and voltage control over aux sends.

Notes: Sarajewo is an analog delay module based on old school (but newly manufactured) BBD (Bucket Brigade Delay) chips. It features three delay taps, an external clock input with various tempo sync factors, and a wide range of settings controllable via CV. It is based on high quality components with maximum effort put towards the highest sound quality possible, while still preserving the charm of the BBD technology. The module offers a clean and warm analog sound with tons of character and a comfortable user interface with a tap tempo button, signal level indicators, sync and CV inputs, four signal outputs, and an adjustable feedback filter.

TECHNICAL DETAILS:
Eurorack synth compatible
12hp, skiff friendly
Current draw: +180mA / -120mA
Reverse power protection

Notes: A big deal even by Xaoc's prolific and eclectic standards. Fully analogue VCO based on the none-more-old-school fonction d'onde formantique, implemented with extensive CV control. Transcendent waveforms indeed.

Supplier's Notes:
Sofia is a fully analogue voltage-controlled oscillator (VCO) based on an original waveforming principle. It features a modern, well-calibrated, temperature compensated triangle core and two elaborate waveshaping and modulating sections. The sound is a mixture of a warm, saturated base tone and two ripple components. Besides its main output, Sofia offers access to individual components of the sound plus a multitude of modulation inputs allowing for extensive self-patching and animation of the waveform. To better understand the device, it is strongly advised to read through the entire manual before using the module.

Sofia implements and extends the classic computer music method for synthesis of formant sounds called FOF (fonction d'onde formantique), which uses a combination of simple, time-domain components (decaying sinusoidal waves) to achieve desired spectral characteristics.

In Sofia, two of such ripple elements are added on top of a slightly saturated sinusoidal base tone. Each new cycle of the base tone spawns a new pair of ripple elements. The ripples' density and decay rate may be adjusted over a wide range. Additionally, the elements may be warped so that their density accelerates or decelerates within the cycle. Finally, their basic waveform may be switched from sine-like to square-like for additional richness.

Despite the seemingly divergent frequencies present in the signal, it remains strictly harmonic due to how all elements are waveshaped from the core tone and therefore phase coherent. Thus, Sofia is not a complex oscillator in the Buchla sense; however, it goes beyond the traditional set of primary waves and wavetables, hence the name.

Analogue VCO with complex waveforms
Extended FOF synthesis
3 frequency control inputs
8 parameter control inputs
6 signal outputs

24hp, 30mm deep
Current draw: +90mA/-80mA
Reverse power protection

The high quality Coal Mine black panels are available for all of Xaoc Devices modules. Sold separately. Ask your favourite retailer.

Notes: The MKII version of the PDO is available: Better CV handling, 16 HP, single PCB instead of stacked boards. An upgrade path is available for those with MKI versions, contact us for more information.

Introducing the WMD Phase Displacement Oscillator (PDO). This hybrid VCO has all the feel of an analog VCO but with the benefits of digital waveshaping. The PDO will easily find a home in your system!

The PDO exists to utilize the phenomenon of Phase Modulation (PM). This allows for the relative phase difference of its outputs to be set or modulated, producing very interesting sounds. The result is similar to Frequency Modulation (FM) but affects the output to a greater degree without affecting the stability of the initial frequency. This is where the "displacement" comes in.

When you use frequency stable phase displacement, you create phase distortion which sounds like wavefolding and is very useful for dynamic textures and powerful sounds.

PM has the same benefits of quadrature filters/sine wave generators and greatly exceeds their capabilities at audio rate modulations. PM is highly useful for for creating metallic and bell tones and very controlled harmonic interactions.

Because PM affects the relative phase and not the frequency of the waveform generated, the PDO can self modulate its PM inputs. This creates complex harmonic signals that seem to vary in frequency but are quite stable.

Phase Modulation is also quite powerful when using the PDO as an LFO. Adjusting the relative phase of each output allows for very precise modulation of other modules. Each output can have any of the available waveforms simultaneously. There is a myriad of modulation possible with the PDO!

Notes: Kraken is a physical modelling snare drum with a wide range of sounds.

With 32 different shell models, nose algorithms and different distortion types as well as a pitch shifter, the snare sound can be customized as desired.

The additional CV inputs (velocity, accent, decay) can be used in conjunction with a sequencer or other modulation sources to create realistic drum patterns. With the optional pitch shifter at the output, reminiscent of old smapler and pitch shifter pedals, the tonal possibilities can be expanded even further.

Features:

Integrated distortion
Digital and analogue noise sources
Pitch shifter
100% digital synthesis, no samples
Great variety of sounds
Two trigger inputs, which produce a realistic "rimshot" sound when used simultaneously

Power consumption: 61mA at +12V and 17mA at -12V

Depth: 38mm

HP : 8

Notes: Excellent Eurorack sequencer based on random chance and evolving patterns. Dial in a series of notes and build melodies, generate and tweak patterns in real time. Huge depth for studio production or live performance.

Supplier's Notes:
The Melodicer from Vermona is a CV/Gate sequencer with an innovative concept; the melody sequencer offers twelve faders for setting the note probability and two dice-(or random) buttons for generating melody and rhythmic structure.

Notes: There is almost no modular system without at least one filter-module. You can look at them as the stars within the giant Eurorack-jungle. twinVCFilter is such a star as well. A dual filter module with flexible routing and excellent audio properties. It covers a huge range of different applications without the slightest effort.

Features and Routing:

Each filter section of twinVCFilter works as low- or highpass-filter with a slope of 12 dB/octave or as bandpass-filter with 6 db/octave. Signals can be directed in three ways through the module:

- Serial: The incoming signal passes both filter sections in a row.
- Dual: The filter sections act completely separated of each other. As if they were two individual filter modules.
- Parallel: The incoming signal passes both filters at the same time.

With these routings you can i.e. generate bandpasses or notches with variable slopes and different resonance settings or doubling the filter's slope. These are the more obvious combinations but there is a lot more to discover.

The convenient link-feature allows to couple cutoff- and resonance of both filter sections for straightforward stereo use in dual mode.

Mix section:

The flexible signal-routing is supplemented by the mix-section. Here you can crossfade both filter sections manually or by control voltages. Seamless movements from low- to highpass-filter, is as easy as crossfading from half to doubled slope. Of course you can mix two completely individual signals or toggle between them by using a rectangle-LFO-modulation.

Resonance:

Resonance is a key factor in the context of sound-shaping and sound-generation using a filter. Therefore we carefully trimmed twinVCFilter's resonance to be as musically and stable as possible. You can apply subtle frequency-dependent emphasis to signals and tear them up to self-oscillation. The latter generates a solid sine-wave which is an excellent base for percussive sounds. Possible cross-modulations significantly enhance the sound-generator features. By the way: If you are missing a vibrato-LFO in a patch, twinVCFilter can do the job.

twinVCFilter offers a huge set of features to form impressive soundscapes. It can take subtle influence to signals or massively truncate frequencies. It leaves nothing to be desired. Despite, for those who need additional possibilities we especially designed the tVCF-Extension module.

Notes: A duophonic percussion/drum module which offers you two individual, almost identical voices. Each of them has an oscillator with selectable waveforms as well as an attack-decay envelope which simultaneously can modulate the pitch and the VCA.

A large number of sockets is available which not only are used for modulating and triggering the drums but also emit any oscillator waveform and envelopes. That is utterly useful!

The first difference between both voices are the available waveforms: voice A offers square, triangle and sine, while voice B has noise, square and sine. For atonal noisy sounds like hi hats and anything cymbal voice B is more suitable.
The wave forms are switch selectable and simultaneosuly available at individual outputs i.e. you can process the audio signals exernally. Using the module's EG CV outputs plus two external VCAs you can re-create or alter the signal flow. Envelope signals and audio sources are available!

For controlling the frequency there's a hi/lo switch alternating between bass and treble, then a tune control and a modulation attenuator which scales either the envelope or a nexternal CV. besides individual inputs (A VCO and B VCO) there's also a common CV input VCO A+B which addresses both voices simultaneosuly. A VCO is normalized to the VC CV input A VCA, analogical for channel B.

The second difference is in the envelopes. Voice A has an attack-decay envelope generator with manually adjustable times. Voice B has a decay envelope with fixes attack time but with voltage control of decay time via EG 2 input and the CV EG2 attenuator.
The envelope generators are able to modulate not only the pitch but simultaneously also the level. For that reason there's an second attenuator which altternately detemines the intensity of an external CV (see above).

Each voice has an individual audio output, although OUT B works as a mix output when no cable is plugged to OUT A.

*essentially two things have changed in the + version:
-the output levels of the MIX outputs have been increased
-the frequency of the filter for noise can now also be controlled via CV

Power consumption: 105mA at +12 V and 70mA at -12 V
Depth: 45mm
HP : 24

Notes: Explore modulation beyond the standard ADSR with Verbos's complex polyphonic envelope, opening up the potential of ADAsR and AHDsR slopes. Use the four envelopes independently or trigger sequentially in three separate modes.

Supplier's Notes:
The Verbos Polyphonic Envelope module is a set of four envelope generators which can be used together or independently. Cascade logic allows the four envelopes to trigger sequentially with subsequent envelopes starting at the Hold, Decay or End of the previous envelope.

Each envelope offers its own gate input, CV output and end pulse output, so it can be used in up to four-voice polyphonic patches. The three skew controls allow the times to change as each new envelope is switched on. All parameters can be voltage controlled.

Power consumption: 75mA at +12 V and 30mA at -12 V

HP : 22

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


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: Tiptop Audio's Z-DSP is a cartridge-based open source digital sound processing and effects generating platform for your modular synthesizer. Lush audio processing, greater stereo depth and a unique set of digital synthesis is what the Z-DSP is all about.

The Z-DSP has a stereo digital sound processor with 24-bit sampling, 15kHz of bandwidth, voltage-controlled parameters of stereo feedback, program switching, DSP parameters, equal power crossfading dry/wet mixing, as well as sequential program control switching and a clear display - all in Eurorack format. A dedicated clocking input for the DSP chip does wonders to passing sound by bending the algorithms in an unexpected way, a hardware technique computer plugins can't do and is unique to the Z-DSP.

In a recent update, the Z-DSP (NS) got an all new design of its analogue circuitry, contributing to a lower noise signal path, clearer sound of the entire frequency range, lower distortion and better immunity to noise emitted by other modules sharing the same power supply. A new analogue dry/wet circuit has been implemented to remove the 3db gain drop when the mix knob passes through the centre of the dial making the use of this function more practical in a live application. A reverse polarity protection has been added as well. The new front-panel matches Tiptop's colourful design, and a single printed circuit board and surface mount technology improve reliability during production and use. The powerful Z-DSP engine remains the same as the original Z-DSP module and all cards are compatible across both versions.

An assortment of interchangeable cards, programmed by Tiptop Audio and specialists like Valhalla DSP, provide a wide range of boutique effects algorithms such as Halls of Valhalla, Time Fabric, Clocked Delays and Grain De Folie. Tiptop Audio also offers blank Z-DSP cartridges and a development tool called NumberZ for developers, students and power users who want to design their own effects and cards with the FV-1 DSP chip programming language. Blank cards can be loaded using programs that are freely available for non-commercial use and can be found in the modular community through online forums. With each card swap, the Z-DSP takes on new effect algorithms, changing like a digital chameleon and bringing colourful digital effects processing to your Eurorack setup.

The Z-DSP comes included with 2 cards: Halls of Valhalla and Dragonfly Delay MKII.

Notes: The Circadian Rhythms is moving modular synthesizer technology another step forward by gluing all the pieces of a system together. Each module or voice can now be programmed to play straight from an intelligent, eight-channel, 512-step master trigger sequencer made for composers looking to make music on the modular. Building on the sequencing concept of step programing multi-channel patterns of musical phrases can be repeated, looped, chained, muted and manipulated on the fly in real-time, and most importantly, all of this is done through a simple, clearly labeled interface. Using an array of multicolor illuminated buttons and innovative grid views provides a highly functional live performance sequencer with a beautiful glowing appearance of the programmed music that will look amazing on stage for both performer and crowd. As a master controller, the heart of the modular synthesizer, Circadian Rhythms generates high precision clock and reset signals for all the other sequencers and devices in the system to align with and can also act as a high precision bridge for DAW synchronization.

Views - Unlike most hardware sequencers that have a single static display of a timeline, Circadian Rhythms offers four different horizontal views of the timeline and two unique vertical views that scale from macro to micro. Switch between viewing 64 steps at once or all 8 channels side by side instantly. Stretch gates over multiple patterns to drive envelopes or use Zoom view to move a single hit back a few milliseconds in time to get the right feel all from the same interface.

LED Grid Built for Quick Access - Built around 72 buttons set as a multi-color illuminated 8x9 array, Circadian Rhythms displays both note data and settings in a clear and precise manner. It takes only one click to switch to vertical view and the grid turns into a set of programming and realtime playing functions like Mutes, Loops, Swing, Fills, Copy and Pate, Grouping, Randomizing, Manual trigger entry drum machine style and many many more. Activate any of those functions with only a button press or two.

Clock - Inside the CR ticks an extremely precise clock with jitter and latency measured in mere microseconds for the ultimate feel of groove. The four modes of clock sync make interfacing with other modules, hardware or software simple. Whether driving a large Eurorack system or synced to a DAW, the groove always remains tight.

SyncBus Technology - The Tiptop Audio designed SyncBus enables the CR to connect to any number of other SyncBus devices with the highest possible level of synchronization. A SyncBus master directly injects its core clock and running status into every connected unit so they work seamlessly as one device. Hook up two CRs to make a 16 channel device or add a Trigger Riot (or three) to the mix for further experimentation. Plus, the connection is done behind the panel so no need to patch anything together.

Under The Hood - When state of the art chip technology, musically driven firmware, and professionally engineered hardware design all come together in one electronic device, the result is a music sequencer with unparalleled specifications. Starting with a powerful, precise sequencing engine that has superb feel for the groove, add internal functions that automatically balance performance and smooth user interface operation, and finish with outstanding low power consumption placing minimal stress on power supplies even at maximum output, Circadian Rhythms has a design focused on the requirements of the most dedicated musicians and composers. Long time pros will immediately feel a machine made for their needs, while the newcomers can instantly dive into next level programming and performance.

Notes: The Z8000 Matrix Sequencer is a modulation source like no other: The 16 knobs of the Z8000 are accessed by ten sequencers with their own clock, direction and reset inputs. The ten sequencers are as follows:

Four 4 step CV sequencers on the horizontal.
Four 4 step CV sequencers on the vertical.
One 16 step CV sequencer on the horizontal.
One 16 step CV sequencer on the vertical.

The Z8000 can simultaneously modulate up to 10 CV parameters poly-rhythmically, with unprecedented motion complexity. One knob affects all 10 CV outputs! Imagine modifying 10 parameters from one knob. With its 30 gate and clock inputs and 10 CV outputs one can only imagine the possibilities, and all clock inputs can even be driven at audio rates! The Z8000 pairs well with the Trigger Riot and Circadian Rhythms and using it with the QuantiZer extends its capabilities as a high-precision 1V/Oct note sequencer.

Introduced in 2017, a new version of the Z8000 maintains the original circuitry but adds output range adjustment switches on the back and Tiptop's new colored look, which helps highlight the sections, on the front.

Size: 28HP
Depth: 15mm
Power: +12V 70ma / -12V 10ma

Notes: The Circadian Rhythms, is a professional performance gate sequencer in Eurorack format. Sitting at the centre of your system the Circadian provides triggers and gates to all your drum modules and percussive sounds as well as clocking your other sequencers with exceptional timing accuracy. Each channel voice can be programmed directly from the intelligent, eight-channel, 512-step master gate sequencer designed for composers looking to make music on the modular and perform live. Building up from basic step programming, multi-channel patterns of musical phrases can be repeated, looped, chained, muted, and manipulated in real-time, and, most importantly, all through a simple, clearly labelled menu-free interface.

Led Grid

Built around 72 buttons set as a multi-colour illuminated 8×9 array, Circadian Rhythms displays both note data and settings in a clear and precise manner. It takes only one click to switch to vertical view, turning the grid into a set of programming and real-time playing functions like Mutes, Loops, Swing, Fills, Copy and Paste, Grouping, Randomizing, and Manual drum-machine-style trigger entry. Activate any of those functions with only a button press or two. Using an array of multi-colour, illuminated buttons and innovative grid views provides a highly functional live performance sequencer with a beautiful, glowing appearance that will look amazing on stage for both performer and crowd. As a master controller, the heart of the modular synthesizer, the Circadian Rhythms generates high precision clock and reset signals for all the other sequencers and devices in the system and can also act as a high precision bridge for DAW synchronization.

Clock

Inside the CR ticks an extremely precise clock with jitter and latency measured in mere microseconds for the ultimate feel of the groove. The four modes of clock sync make interfacing with other modules, hardware, or software simple. Whether driving a large Eurorack system or synced to a DAW, the groove always remains tight.

Under the Hood

When state of the art chip technology, musically driven firmware, and professionally engineered hardware design all come together in one electronic device, the result is a music sequencer with unparalleled specifications. Starting with a powerful, precise sequencing engine that has superb feel for the groove, add internal functions that automatically balance performance and smooth user interface operation, and finish with outstanding low power consumption placing minimal stress on power supplies even at maximum output, Circadian Rhythms has a design focused on the requirements of the most dedicated musicians and composers. Long-time pros will immediately feel a machine made for their needs, while newcomers can instantly dive into next-level programming and performance.

SyncBus Technology

The Tiptop-Audio-designed SyncBus enables the CR to connect to any number of other SyncBus devices with the highest possible level of synchronization. A SyncBus master directly injects its core clock and running status into every connected unit so they work seamlessly as one device. Hook up two CRs to make a 16 channel device or add a Trigger Riot (or three) to the mix for further experimentation. Plus, the connection is done behind the panel so there is no need to patch anything together.

Size: 36HP
Depth: 29.4mm
Power: +12V 160ma / -12V 0ma / +5v 0ma

Notes: Brilliantly powerful trigger module, capable of acting as a master clock and a sequencer, generating gate signals and pulses. Good hands-on control options for live performances.

Supplier's Notes:

The Trigger Riot is a multipurpose trigger module that makes ultra complex patterns of gates triggers and clock pulses. The Riot covers a lot of ground in any Eurorack system from the master clocking for your entire system to algorithmic generation of pulses for envelopes, step sequencers, drums and accents that can venture into highly complex territory driven by simple yet powerful logic and algebra with a dash of pseudo randomness for some unpredictable results.

The user interface allows a great deal of control over pulses with each knob acting as a clock divider, clock multiplier, step injector, time shifter, clock shifter, pulse-width modulator, and an arithmetic probability processor. Now take that control and multiply it by 16 and feed it into 8 outputs for maximum Trigger Riot madness!

Furthermore the interface features a master clock knob, push switches to mute unmute and select rows, and multiple switches to configure, adjust, create loops and save your work for later recall from memory banks.

Trigger Riot integrates nicely in the studio with non-volatile memory, generous synchronization options with external gear including sample accurate sync with DAWs, smart synchronization to other Tiptop modules using SyncBus, and DIN Sync for vintage gear. A precise internal tempo clock generator with tap tempo and BeatSync to manage precise changes round out the features.

Notes: Tiptop Audio's Z-DSP is a cartridge-based open source digital sound processing and effects generating platform for your modular synthesizer. Lush audio processing, greater stereo depth and a unique set of digital synthesis is what the Z-DSP is all about.

The Z-DSP has a stereo digital sound processor with 24-bit sampling, 15kHz of bandwidth, voltage-controlled parameters of stereo feedback, program switching, DSP parameters, equal power crossfading dry/wet mixing, as well as sequential program control switching and a clear display - all in Eurorack format. A dedicated clocking input for the DSP chip does wonders to passing sound by bending the algorithms in an unexpected way, a hardware technique computer plugins can't do and is unique to the Z-DSP.

In a recent update, the Z-DSP (NS) got an all new design of its analogue circuitry, contributing to a lower noise signal path, clearer sound of the entire frequency range, lower distortion and better immunity to noise emitted by other modules sharing the same power supply. A new analogue dry/wet circuit has been implemented to remove the 3db gain drop when the mix knob passes through the centre of the dial making the use of this function more practical in a live application. A reverse polarity protection has been added as well. The new front-panel matches Tiptop's colourful design, and a single printed circuit board and surface mount technology improve reliability during production and use. The powerful Z-DSP engine remains the same as the original Z-DSP module and all cards are compatible across both versions.

Notes: OCTOPUS is a powerhouse ART controller that takes MIDI in via the USB or DIN connector and outputs 8 ART channels with 8 velocity CV plus 8 drum triggers. Together with the ART oscillators the OCTOPUS provide unprecedented simplicity connecting the modular to your computer sequencers, hardware midi sequencers and keyboards. Each ART channel can play polyphonic notes, monophonic notes or create multi-channel polyphony using an internal voice manager. All together OCTOPUS can play more voices and notes from a single controller than ever was possible in modular. Using ART high speed control signals OCTOPUS can maintain low jitter for tight timing.

Please note, OCTOPUS is not a 1V/Oct midi to CV and should not be confused as one.

Size: 18HP - Depth: 40mm / 1.5"
Power: +12V 140mA / -12V 100mA

Notes: A whole lot of module for the money. Eight-track trigger sequencing with built-in drum synth, sample player and MIDI. Amazing value for studio use or live performance.

Supplier's Notes:
Trigger sequencer with audio and midi

TUKRA is an 8 track eurorack trigger sequencer with drum synth, sample player and midi.

This module can be an 'all in one' solution for drums, but also has great integration capabilities with other gear (eurorack modules, drum boxes, DAWs, midi devices and midi surface controllers).

There are no submenus, all functions and views are accessible all the time.

Brief overview:
- Up to 64 steps per pattern, 64 patterns, 64 parts and 16 songs per project. 64 projects in the microSD card.
- Play mode, clock divider, length & choke settings independent per track & pattern.
- Step value (can be used for modulation, to define the midi velocity, midi note & drum synth pitch or sample selection).

Ins & outs:
- 8 trigger/gate, clock & reset outputs. Clock & reset inputs.
- 4 CV inputs with offset potentiometers (so they're manual controls when no CV is plugged in).
- Audio L & R out (6 additional ones with the expander for independent track output).
- Front panel midi TRS in & out, and USB host for midi controllers.

Midi and audio:
- Midi note and channel configurable per track & song, midi note and velocity can be set by the step value.
- Drum synth, noise with envelope and 'one shot' sample player (factory and user banks) per track.
- Flexible sample selection (each track can play up to 128 samples).
- Mixer with volume, balance, reverb, bit crusher, filter cutoff, resonance and type (smoothly crossfades LP - BP - HP).

Modulation:
- CV & assignable midi CC plus 8 internal LFOs, 3 stepped random sources and step value.
- Modulation matrix for almost all parameters.

Rhythm variation:
- Probability for step, gate and roll.
- Euclidean Rhythm Generator.
- 'Ramifications' generative tool.
- Live view with solo, mute, fill, roll, invert pattern, reverse play direction and rotate.

Time:
- High precision clock source and low latency.
- External sync (via trigger, midi TRS or USB).
- Triplets and swing (aka 'shuffle'), triplet and swing can be generated from a straight clock input or midi clock.
- Micro grid edit, each step has 6 micro steps (24 ppq).
- Half and double tempo functions.

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 Neutron Flux 8 Pole Variable Character Filter is a 12hp skiff friendly eurorack filter module with a stereo analog core and digital control over it. The controls are familiar filter module controls (cutoff, bipolar FM, mode, drive) with some added spice and no complexity.

The special stuff is in these controllable features:

Character: This control blends between five vintage influenced classic filter characters: Fat, Crisp, Liquid, Sour and Mean. Coming later in a firmware update, the Neutron Flux will also have two user banks for more specialized filter characters which can be replaced via audio update.

Overdrive: You can switch the drive circuit to have a +20dB boost and have the drive pot to sweep from clean via warm saturation to extremely hard distortion.

Stereo: This control spreads the cutoff between L and R channels and induces drift. This way a mono signal can be split into wide stereo.

Two 4 pole filter cores: These can be run in stereo, mono to stereo or chained as a 8 pole mono filter for almost LPG-like steep slope. Both of them have their own drive circuits so you can have the overdrive stage in the front, in between or both.

The module can be used in many different ways. It can do classic LP/HP/BP filtering. It can self-oscillate in different waveforms. It can provide analog warmth and process something coming out of your DAW. It can act as a stereo distortion. It can spread your mono signal to a wide spatial stereo soundscape. It can do formant stuff and other wild characters. It can do audio-rate deep FM (1V/oct and FM CV's are all analog).

Power consumption: 250mA at +12 V and 100mA at -12 V
Depth: 25mm
HP: 12

Notes: Studio Electronics' version of the boxy, Blade Runner-sweet and Boomstar-brash dual mode CS80 filter, initially married to the Omega Series Synths, and then tucked-in the 'Stars, now joins the Modstar Collective. They've twisted and turned the SE88 to unflatten the earth, so to speak; the original CS80 fed a HP filter into a LP filter, but with the SE88 your can select MODE 1's HP or BR to feed MODE 2's LP or BP, or patch it to reverse that pleasant path. The audio signal is completely controllable with input and output levels for each filter. Cherish and respect your filter's input gain stages, for a smooth yet often brassy sound - shed your mercy to strike hard for boiling, snarling bite, even to the blackout/cutout point (see Greg St. Regis, Tim Caswell, and Marc St. Regis' SEM filter commentary for a detailed diatribe on this "feature too far"); then and only then, uniquely blend mode settings for the filter family values you revere.

To get things merrily modulating, each filter employs attenuverters for frequency and resonance experimentation and decimation. While the SE88 does not self oscillate (Yamaha's creation didn't either), we did amp up the resonance level for full-throttle squelching. An additional master FM (frequency modulation) attenuverter-controlled level can feed both filters (when hungry enough) simultaneously, and tracking switches allow for individual keyboard response for each of the contrasting and complimentary filter modes.

Potentiometer Potential:
Five attenuverter and eight attenuation pots control the FREQUENCY MODE 1, FM IN, FREQUENCY MODE 2, RESONANCE, M1 FM, RESONANCE, M1 RES CV 1, M2 RES CV, INPUT, M2 FM, OUTPUT, LEVEL (M1 OUT), and LEVEL (M2 OUT).

Switch it Up:
2/3 - 1/3 TRACK (M1), FULL - HALF TRACK (M2), HP - BR, LP - BP.

Patch it Up:
Ten patch points: 1 V/O, FM IN, M1 FM, M2 FM, M1 RES CV, M2 RES CV, M1 IN, M1 OUT,
M2 IN, M2 OUT.

All Controls and Patch Points:
FREQUENCY MODE 1 - Adjusts the frequency, or cutoff of Mode 1.
2/3 - 1/3 TRACK - Toggles tracking options for Mode 1.
FM IN - Adjusts the master frequency modulation input.
FULL - HALF TRACK - Toggles tracking options for Mode 2.
FREQUENCY MODE 2 - Adjusts the frequency, or cutoff of Mode 2.
RESONANCE - Adjusts the resonance of Mode 1's filter.
M1 FM - Adjusts Mode 1's frequency modulation.
RESONANCE - Adjusts the resonance of the Mode 2's filter.
HP / BR - Toggles the High-Pass and Band-Reject option.
M1 RES CV - Adjusts Mode 1's resonance control voltage.
M2 RES CV - Adjusts Mode 2's resonance control voltage.
INPUT - Adjusts the master audio input.
M2 FM - Adjusts Mode 2's frequency modulation.
OUTPUT - Adjust the audio output.
1 V/O - One volt per octave control voltage input.
FM IN - Master frequency modulation input.
M1 FM - Mode 1 frequency modulation input.
M2 FM - Mode 2 frequency modulation input.
M1 RES CV - Mode 1 resonance control voltage input.
M2 RES CV - Mode 2 resonance control voltage input.
M1 IN - Mode 1 input.
LEVEL - Level control for Mode 1.
M1 OUT - Mode 1 output.
M2 IN - Mode 2 input.
LEVEL - Level control for Mode 2.
M2 OUT - Mode 2 output.

- Size: 20hp
- Depth: 39.7mm with ribbon cable attached
- Power Usage: 42mA (+12 / -12)

Notes: Nicely thought out four-voice sample playback module from Parisian innovators Squarp. Load up a microSD card with samples (up to 2600 kits), then trigger and process. Neat.

** Firmware update- February 2024 ***

Thanks to a major rework of the OS, this upgrade includes an overall better sound quality and an improved latency.

Moreover, the effects Freeze and Bitcrusher have been redesigned, and the parameters Start and Sample Length are now exponential to facilitate the fine-editing of your samples.

Supplier's Notes:

Rample waves system

Eurorack 4-voice sample player & audio processor

Versatile sample machine

From percussive drum-machine kits to synth samples, breakbeats to sound FX, backing tracks to hour-long audio music, Rample can play up to 4 .wav files on independent audio outputs :

These samples are stored inside the provided SD card, and organized as kits, from A00 to Z99... allowing up to 2600 banks of 4 voices, with on-the-fly loading! The SD card is preloaded with tons of samples, and we made it very easy to import your own kits.

Thanks to the DC coupled audio outputs, it's also possible to play CV waveforms.

Effects rack

Each voice has its own "rack" of effects, and all audio effects can be enabled at the same time, allowing you to manipulate your samples in real time, from a gentle lowpass to massive destruction!

pitch - a great sounding pitch engine, based on a 6-pole interpolator, which ranges from -1 octave to +1 octave.

bits - two different bitcrushing algorithms, based on sample rate and resolution reduction. It produces distortion and warms the audio signal.

filter - a low resonance filter, DJ-style, cutting off the high frequencies or the low frequencies.

freeze - sample and loop a fraction of the played waveform, creating a glitching effect.

levels - decrease the gain or drive the signal.

It's also possible to edit 'advanced parameters' like the start point, sample length, attack/decay and run mode, and create mute groups without breaking a sweat.

Finally, thanks to the 4 CV inputs, any of the effects (or advanced parameters) can be assigned to create amazing modulations!

Multi-layer sampling

One of the key feature is the ability to "multi-sample" your kits, multiplying Rample's potential. Each voice supports up to 12 samples, can be played randomly or in a controlled fashion. It's a great way to add complexity and variations, to create organic/acoustic sounding drums, or simply to increase the number of samples per kit (up to 48).

As an example, Squarp are providing a multi-layered drum kit, with 12 different recordings of a kick, 12 different recordings of a snare, etc. Sequencing them randomly leads to a more natural drum playing.

Another kind of multi-layered acoustic drum kit is also provided, where each drum is recorded with 12 levels of velocity. Controlling the layer to be played leads to intricate, convoluted drums programming.

Of course, it's very easy to create your own multi-layered kit, and you can use this method to perform multiple synth chords, sound glitches, voices, breakbeats, ...

CV/Gate and Midi interface

Rample is designed to be the perfect rhythmic companion of your eurorack system thanks to its Gate (trig samples) and CV (modulate samples) connectivity.

You can also use it as a standalone midi machine, without using the CV/Gate connectivity: the midi in port allows you to trig & control all samples parameters + effects values at the same time. Each Rample comes with a 'stereo jack to midi DIN' and 'stereo jack to jack' adapters, easing the chaining of multiple modules in order to create an 8-voice, 12-voice, 16-voice (or more) midi drum machine!

SD card preloaded with 200+ kits from artists and sound designers, covering a large range of audio samples

Notes: From one of the most iconic names in modular synthesis, the Variable Bandwidth Filter is a unique design, combining two state-variable VCFs with extensive CV control for clean, versatile filtering.

Supplier's Notes:
The Serge Variable Bandwidth Filter (VCF2) is probably the rarest classic filter in the Serge system, offering a unique combination of 2 filters. According to the 1983 Serge catalogue, the Variable Bandwidth VCF (VCF2) "has a band-pass output which can be varied manually or with voltage control. This is a standard response synthesizer VCF, typical to filters used in many studio systems. In the VCF2, two state-variable VCF's are connected in series to produce a total of five outputs. High pass, low pass, two fixed bandwidth outputs, and one variable bandwidth output are available. The outputs are all flat-response (no resonance) so the VCF2 is suitable for processing concrete sounds without introducing resonant coloration to the timbres. Under voltage or manual control, cut-off frequency of the high and low-pass outputs are affected, as well as the center frequency of the two band-pass outputs. Both center frequency and bandwidth are independently controllable on the variable bandwidth output."

Now - for the first time, designed and licenced by Serge - the VCF2 is available as a eurorack module. A new switch has been added which determines if the CV-controls are routed to the first (left), second (right) or both filters, bringing even more sonic options than the original.

Some details of the Random Source Serge VCF2 module:

Original Serge design, under licence and in cooperation with Serge Tcherepnin
Uses for High-end VCAs
Eurorack format (3U), 20 hp
Power consumption: 45mA @ +12V, 45mA @ -12V
Module depth: < 30mm (1.2")

Notes: The Serge Dual Universal Slope Generator (DSG) is probably the most versatile module of a Serge Modular system, incorporating a wide range of functions for both CV and audio. Some functions for which one Slope Generator can be used: VC Transient Envelope Generator, VC LFO, VC Portamento device, Envelope Follower (Detector), VC Pulse Delay (Monostable), Sub-Harmonic Series Generator (Divider), Audio Oscillator with variable waveform symmetry (saw to triangle), Non-Linear Audio Processor (low-fidelity VCF).

From the catalog: "The Universal Slope Generators are unity gain voltage followers with voltage controllable slopes. The range of control is exponential, extremely wide, and the Rise and Fall times can be controlled independently. The range of the Slope Generator is from sub-sonic to high audio frequency. Trigger inputs and trigger outputs allows each section of this dual module to function as a transient (envelope) generator, pulse delay, or in a "cycling mode" (to produce an LFO or clock). Since the Rise and Fall times are voltage controllable, this adds another dimension to the above functions.

The DSG mk2 version has been optimized for audio performance and speed/precision. The top section covers a frequency range up to more than 10kHz. It also offers improved tracking and some temperature compensation.

Dimensions
26 HP
40 mm deep

Current Draw
90 mA +12V
80 mA -12V

Notes: The Variable Q VCF (or VCFQ, for short) from Random Source is a skiff-friendly Eurorack adaptation of what is perhaps the most famous Serge filter. It is an effortlessly thick and colorful 12dB/oct multimode filter with ultra-smooth resonance that never ceases to amaze. Amazing tonal variety comes from combining outputs, automating resonance settings via CV, and adding grit using its adjustable-gain input.

Simple filtration is only one of the VCFQ's many uses, however. Its amazing trigger input turns rising-edge pulses into thick analog kicks and toms which roughly track notes thanks to a dedicated 1V/oct input. This module also becomes an ultra-powerful modulator in "Lo" mode, with decaying/syncable LFOs well within grasp using the trigger input, along with free-running oscillation when self-patched. When fed stepped sequences, sample and hold, or other LFOs, the VCFQ can even function as an effective slew limiter. And that's not all: for those lucky enough to own two VCFQs, dual-peak resonance and an ultra-thick 24dB/oct low-pass mode offer some of the most rewarding synth sounds in existence. In short, adding a VCFQ to one's Eurorack system is always worthwhile.

Features

Analog multimode filter designed in collaboration with Serge Tcherepnin
Automatic Gain Compensation and Variable Gain audio inputs
Trigger input
1V/oct and attenuverted frequency CV inputs
Attenuated Q CV input
Low Pass, Hi Pass, Bandpass, and Notch outputs
Hi/Lo range switch
This is the skiff-friendly, SMD version of the Random*Source VCFQ

Under licence from Serge Tcherepnin
Designed for High-end VCAs (THAT2180)
No matching of transistors required
No wiring needed

Dimensions
14 HP
26 mm deep

Current Draw
52 mA +12V
52 mA -12V

Notes: The RESONANT EQUALIZER (EQ) is a unique ten-band filter designed specifically for electronic sound synthesis and processing. Except for the top and bottom frequency bands, the bands are spaced at an interval of a major seventh. The Resonant Equalizer is designed to produce formant peaks and valleys similar to those in acoustic insstruments.

There are three equalized outputs: the two COMB outputs provide the sums of the two alternate filter bands, while the two top outputs are the (identical) mix of all filter bands. Please note that there is no sharp separation between the bands, moving any frequency knob will have an influence on both COMB outputs. This equalizer is special in that the bands can be set to be resonant: when the knobs are in the middle position, the response at the main EQ Output is flat. When the knobs are positioned between the 9 and 3 o'clock position, up to 12 db of boost or cut is set at the band. If the knob is set beyond the 3 o'clock position, the band will become resonant, simulating the natural resonance of acoustic instrument formant structures. Below the 9 o'clock position, increased band rejection is achieved.

The Random*Source version of the filter is a licensed and authorized adaption of the legendary Serge equalizer for Eurorack. It adds an input mixer with 2 inputs that can be built/used to attenuate or amplify/distort the input signal(s) before they are sent into the EQ and a Feedback section (knob and phase switch) which allows to feed back the output signal or the inverted output signal (depending on the Phase switch). Adding inverted feedback leads to phase cancellation effects - unlike the "normal" feedback, level decreases and the signal thins out.

Notes: The Precision VCO (PCO) is Serge's legendary oscillator. It combines raw vintage sound with astonishing precison.

The PCO is a versatile, voltage controlled oscillator now offering four high quality waveform outputs (sine, triangle, pulse and sawtooth) and both linear and exponential frequency modulation capabilities . A front panel switch conveniently extends the range of the PCO from the audio range (16 to 16,000 Hz) to a sub-audio range (.1 to 200 Hz) for use as a Low Frequency Oscillator.

EXCELLENT RESPONSE, TRACKING AND STABILITY: Featuring the identical exponential response, exceptional tracking characteristics, and perfect temperature stability as the NTO, the PCO is especially suited for use with the NTO or another PCO as a modulation source for dyanamic depth linear FM.

Two calibrated one volt per octave inputs as well as a variable processing input are provided for complex frequency control. FM depth can be varied with the front panel adjustment. A Sync input is also available for locking the PCO to another oscillator's fundamental, harmonic, or sub-harmonic frequency.

The Serge PCO is the only authorized version of Serge's classic design.

Some details of the Serge PCO eurorack module:

Authentic Serge design
Now with PULSE OUT
Variable oven temperature
Manufactured in Germany
Eurorack (3U) format, 18 hp
Power consumption: 75mA @ +12V, 60mA @ -12V
Skiff-friedly, Module depth: < 30mm

Notes: The Serge GTO is a newly designed, complex multi-functional module which can be patch programmed to provide various slew and sample functions both for audio and CV signals, but also act as a (dual) oscillator or filter or bitcrusher or ... It is one of the essential Serge modules. The GTO is an offspring of the famous Serge SSG.

The Smooth section will place a positive and negative slew on input voltage transitions for lag effects, voltage controlled portamento and for low frequency filter applications. In Cycle-mode (cycle jack patched to the input), the Smooth side “will oscillate yielding a voltage controlled triangle wave LFO. A high level into the HOLD input will enable the Smooth Function to be used as a track-and-hold circuit with voltage controlled slew rate.

The Stepped function can be used as a sample-and-hold with voltage controlled slew rate limiting. In Cycle mode, a pulse applied to the Sample input will generate complex staircase waveforms for control voltage applications and for use as audio signals.

Each side has a temperature-compensated 1V/Oct input for use as an oscillator with a frequency range of up to 20kHz (left) and 8kHz (right). Each side tracks over 5 or 6 octaves.

The Coupler is an internal comparator which compares the output levels of the Smooth and the Stepped Generators. This output is useful for generating complex control voltages or random voltages.

Dimensions:
18 HP
25 mm deep

Current draw:
45 mA +12V
40 mA -12V

Notes: At the core of the EVOLUTION Variable Character Ladder Filter is Dave Rossum's enhancement of the iconic Moog ladder filter from the original E-mu Systems 2100 LPF module (which, incidentally, Dave counts as his favourite sounding of all of the analog filters he designed).

For EVOLUTION, Dave has designed new capabilities that not only allow you to dial in all of the outstanding qualities of the original 2100, but combine to let you create the sonic characteristics of a wide variety of other filter types.

They include:

- A Genus control that allows continuous voltage control of the number of filter poles (from 3 to 6 poles), essentially allowing real-time variation of Evolution's effective cutoff slope from 18dB/oct to 36dB/oct. LEDs give continuous indication of the current slope.
- A Species control that lets you vary the signal level into the ladder, letting you control the intensity of the filter's characteristic distortion. When in self-oscillation mode, this control modulates the amplitude of Evolution's output.
- Voltage controlled resonance with a variable Q Level Compensation control that controls the balance of the resonant peak and the frequencies below the cutoff frequency (which would otherwise be attenuated as the resonance is increased).
- An extremely accurate and temperature-stable frequency control exponential generator (accurate over 10 octaves), rivalling the specifications of the best analog VCOs.

Taken together, EVOLUTION gives you everything from the platonic ideal of the classic ladder filter to a vast selection of alternative filter characteristics.

And like all Rossum Electro-Music modules, it's solidly built, with machined aluminium knobs and high quality components throughout.

Notes: *** Free software update available as a free download, along with updated documentation, at the Mob of Emus product page on the Rossum Electro-Music website***

A lot to unpack here. Six-channel multipurpose oscillator/noise source/modulation generator with quantisation, trigger generators and even more. Seriously powerful all-round digital goodness.

Supplier's Notes:
Mob of Emus is a powerful music and sound design tool that packs an enormous amount of creative power into an amazingly compact 16HP module.

Mob of Emus gives you six channels of oscillators, noise sources, cyclical and 1-shot modulators (including LFOs, envelopes, and various other shapes), sample and hold waveshapes, slow random modulators, triggers, rhythm patterns, and quantization (of both internal and external signals) in pretty much any combination (well, any combination of six channels, anyway).

In addition to being able to independently program the function of each individual channel, Mob of Emus' Hex Mode provides a macro control layer that allows you to control all of its channels simultaneously (while maintaining the relationships of each channel's independent programming).

What's more, Mob of Emus' "harmonic" control structure makes it extremely easy to combine its oscillators into rich additive timbres, to combine its LFOs into stacked harmonic low frequency modulation waves, and to create modulation sources and triggers with intricate polyrhythmic patterns.

With an external trigger input, six CV inputs that can operate in six different control modes, six independent outputs, and an assignable mix output, Mob of Emus can operate as the heart of an almost unlimited variety of patches. And its 8 real-time controls will give you immediate hands-on access to a channel's (or all six channels') key parameters, inviting (and rewarding) exploration and improvisation.

Mob of Emus features include:

Six channels that can function independently or can be further controlled by a Hex Mode macro layer that lets you control all six simultaneously. Channels can be:
Wide-range digital oscillators
Noise sources
Cyclical and 1-shot modulators (including LFOs, envelopes, and various other shapes)
Sample and hold waveshapes
Slow random modulators
Triggers
Rhythm patterns
Quantizers (of both internal and external(!) signals)
Six CV inputs that can function in six different control modes
Eight real-time controls for immediate access to key channel parameters
Six individual channel outputs and an assignable mix output
The ability to store and recall 12 user presets
And much more.

Mob of Emus is 16HP wide and 25mm deep.

Power requirements (max): 130mA +12V, 25mA -12V. Reverse polarity protected.

As of March 2021, there has been a been a small bug fix to the recent software update for Mob of Emus.

The update fixes a bug where holding the Channel Selector Buttons for a short time to select a single channel and deselect any others was not working correctly.

The update fixes a bug where some Hex Mode parameters were not ignored when Hex Mode was set to off.

The update introduces a feature allowing users to double-click and hold the Hex button to reset all Hex Mode parameters and set Hex Mode to on.

Rossum Electro-Music made a change to the behavior of the LEDS when using the utility 'Display Software Revision'

Notes: The only module named after a Swedish botanist? Possibly. Relentless synth innovator Dave Rossum pushes the boundaries again with a state-variable stereo filter offering through-zero frequency modulation. Sounds complicated. Sounds good.

Supplier notes:
Following in the tradition of Evolution and Morpheus, LINNAEUS represents yet another Dave Rossum innovation in filter technology.

LINNAEUS is a stereo state-variable filter that provides the unique ability to linearly modulate its resonant frequency through zero into negative frequency, while maintaining stability. With extensive voltage control of nearly every parameter, Linnaeus lets you manipulate the filter's natural response curve in new ways, to create both subtle and dramatic timbral effects. And with a "one-knob-per-parameter" interface, LINNAEUS inspires sonic creativity that invites (and rewards) real-time interaction.

LINNAEUS's cutoff/resonant frequency is exponentially voltage controllable from sub-audio to ultrasonic frequencies, while its resonant gain (Q) is exponentially voltage controllable from 0dB to greater than 60dB.

LINNAEUS's channel output response characteristics are independently and continuously variable from Lowpass, through Bandpass, Highpass and Notch, to Low and High Shelving characteristics. Voltage control of the response characteristics are independently selectable for each of the two channels.

The linear thru-zero modulation is provided by an integrated modulation oscillator and/or an External Linear FM modulation input.

The voltage-controllable modulation oscillator can track the filter's exponential frequency or operate independently. The modulation oscillator's output waveform is continuously variable from Off through Sine, Triangle, and Sawtooth, to Square. The modulation oscillator output is summed with the external linear FM input and applied to the modulation index VCA, which controls the linear thru-zero modulation index from zero to 8X. The modulation index is, of course, also voltage controllable.

Notes: Following in the tradition of Evolution and Morpheus, LINNAEUS represents yet another Dave Rossum innovation in filter technology.

LINNAEUS is a stereo state variable filter that provides the unique ability to linearly modulate its resonant frequency through zero into negative frequency, while maintaining stability. With extensive voltage control of nearly every parameter, Linnaeus lets you manipulate the filter's natural response curve in new ways, to create both subtle and dramatic timbral effects. And with a "one-knob-per-parameter" interface, LINNAEUS inspires sonic creativity that invites (and rewards) real-time interaction.

LINNAEUS's cutoff/resonant frequency is exponentially voltage controllable from sub-audio to ultrasonic frequencies, while its resonant gain (Q) is exponentially voltage controllable from 0dB to greater than 60dB.

LINNAEUS's channel output response characteristics are independently and continuously variable from Lowpass, through Bandpass, Highpass and Notch, to Low and High Shelving characteristics. Voltage control of the response characteristics are independently selectable for each of the two channels.

The linear thru-zero modulation is provided by an integrated modulation oscillator and/or an External Linear FM modulation input.

The voltage-controllable modulation oscillator can track the filter's exponential frequency or operate independently. The modulation oscillator's output waveform is continuously variable from Off through Sine, Triangle, and Sawtooth, to Square. The modulation oscillator output is summed with the external linear FM input and applied to the modulation index VCA, which controls the linear thru-zero modulation index from zero to 8X. The modulation index is, of course, also voltage controllable.

LINNAEUS features include:

- Ultra-wide frequency range, exponentially voltage-controllable from sub-audio to ultrasonic via precise 1V/OCT and attenuverted CV inputs.

- Thru-zero linear frequency modulation via an internal modulation oscillator and/or an external linear FM input.

- Variable linear modulation index, voltage-controllable via an attenuverted CV input.

- Resonance (Q) exponentially voltage-controllable from 0dB to greater than 60dB via 6dB/V and attenuverted CV inputs.

- Continuously variable response characteristics independently selectable for each of the two channels via individual Response Enable controls. Characteristics include Lowpass (12db/oct and 6db/oct), Bandpass, Highpass (12db/oct and 6db/oct), Notch, and Low and High Shelving.

- Voltage control of response characteristics via an attenuverted CV input. Individual Response CV Enable controls let you independently enable or disable CV control of response for each channel.

- An integrated modulation oscillator with continuously variable waveform from Off through Sine, Triangle, Sawtooth and Square. Its frequency can be exponentially voltage controlled via an attenuverted CV input.

- A Track control that lets the modulation oscillator precisely track the filter's exponential frequency.

- Stereo inputs and outputs. LINNAEUS can process a stereo signal or two independent mono signals. While the two channels share the filter's cutoff/resonant frequency, the filter response characteristics can be independently controlled for each channel.

- The solid, high-quality construction you expect from Rossum Electro-Music.

What's with the egg?

The functional description above describes LINNAEUS as originally conceived and designed by Dave. However, late in the beta testing process, Rossum's tester, Chris Meyer, raised the possibility of alternative behavior that would let LINNAEUS function as a self-contained (i.e., no input required) stereo oscillator and/or FM percussion voice with some really powerful timbral capabilities.

While Rossum were initially hesitant to try to shoehorn the new functions into the existing interface, once Dave had prototyped them, it was clear to us all that they were just too cool not to include. So, Rossum have provided them in the form of alternate firmware accessed by pressing and holding the Egg button.

LINNAEUS is 16HP wide and 25mm deep.

Power requirements (max): 155mA +12V, 36mA -12V. Reverse polarity protected.

Notes: Cleverly designed melodic looping sequencer/sampler, offering four pattern banks each with 16 steps, aiming to bring 'DAW-style' workflows to Eurorack - sample reversing, pitch shifting, and so on.

Suppliers notes:
Torus is an overdub looper for harmonic playback. It offers four, 16-step pattern banks for sequencing as well as other sample manipulation techniques. It was designed to bring daw recording workflows (sample reversing, pitch shifting, sequencing, etc.) to eurorack cases.

Inputs:

A, B, C, D - buttons for choosing the current pattern. When combined with chain, these buttons can be used to sequence a pattern chain. Individual chains can be support 16 steps and are kept in sync with torus's global clock.

Chain - button for chaining behaviours. Chain + A, B, C, D can be used to sequence a pattern chain. Chain + record can be used to record multiple patterns in series and then chain playback. Chain + clear can be used to clear all recorded patterns. Chain + tap can be used to reset the current pattern when it contains recordings.

Mix - knob and CV used to blend between the input signal and the recorded pattern.

Record - button and gate in for turning on and off recording. When a pattern is not recorded, record will turn on and in sync with the clock. When a pattern is recorded, record will immediately turn on and off overdubbing.

Oct - buttons for octave shifting pattern buffer playback. Oct buttons can be used to clock divide/multiply an input clock signal.

Reverse - button and gate in for reversing buffer playback.

Harm - knob and CV for choosing harmonic pattern playback speeds. Playback speeds include both integer clock multipliers and perfect intervals.

Tap - button for tapping in tempos for the internal clock. Tap will repeat the current note when the current pattern contains recordings. Combine with chain to reset the entire pattern when the current pattern contains recordings.

Clear - button and gate in for clearing the current pattern. Combine with chain to clear all recorded patterns.

Clock - gate in for clock syncing

In L and in R - audio input, left will be converted to stereo if there is no right input.

Outputs:

Harm out - gate output mapping to harmonic playback resets. This gate output will range from 1-16x the clock out frequency depending on the harm knob/CV value.

Clock out - gate output for the global clock. The output gate frequency will be 0.25-4x the input clock speed based on the oct button state.

Reset - gate output when the current pattern has reset.

Out L and out R - audio output

100 mA +12V 40 mA -12V 0 mA 5V

16 HP 35mm deep

Notes: Monolith is a pitch-shifter reverb inspired by west coast synthesis techniques. It utilizes a time-domain based FM algorithm that acts as a shimmer.

Inputs:

In L and In R - audio input, left will be converted to stereo if there is no right input
Blend - knob and CV for controlling the fade between the dry and FM audio signals
DJ filter - knob and CV for controlling the reverb delay line filtering
Wet - knob and CV for controlling the reverb decay
Mod - knob and CV for controlling the scale of FM modulation. Low mod values correspond with microtonal pitch regions. High mod values correspond with multiple octave shifts.
On - button and CV gate for toggling on/off FM modulation. When FM modulation is turned on/off, the FM modulator oscillator is reset.
Quant - button and CV gate for toggling on/off FM pitch quantization.
Freq and v/oct - knob and CV for controlling the frequency of the FM modulator oscillator. Also control reverb pre-delay.
Shape - knob and CV for controlling FM modulator oscillator shape. Shape wavetable transitions from sine wave (8 o'clock) to triangle wave (12 o'clock) to square wave (4 o'clock).
Clock - CV gate for tempo syncing modulator oscillator period.

Outputs:

Out L and out R - audio output
Gate - CV gate out that is period synced with the FM modulator oscillator

100 mA +12V 40 mA -12V
14 HP 35 mm deep

Notes: Record. Mangle. Destroy.

Nebulae is a granular sampler and DSP platform. Its phase vocoder audio engine provides elastic audio, which can be time stretched, granularized, and mangled to no end. With independent control over pitch and speed, and granular controls such as overlap, window, and density, finding new sonic territory is only a knob turn away. Nebulae can use live audio input, a recorded buffer, or audio files as the source material for its powerful audio manipulations. The live input buffer can record up to five minutes of stereo audio at 48kHz, 24 bit. In addition, up to 75 MB of stereo audio can be loaded simultaneously through the USB port. No naming convention or special formatting necessary; just plug and play.

Nebulae lives a double life as an open source DSP platform with an extensive library of off the shelf alternate instruments. You can turn the module into a lush reverb, spectral delay, or tape-style looper simply by loading a new file onto the flash drive. Do you want to tweak one aspect of an existing instrument, even the default functionality? No problem. No prior coding knowledge is necessary to tweak and refine existing firmware to your liking or start with one of our templates. Alternate firmware files can be written with Pure Data, Csound, SuperCollider, and even bare-bones C programs.

Notes: Reverb. Well...kind of.

Welcome to Aurora, a spectral reverb capable of a wide palette of sounds: from lush caverns and whale songs, to alien textures you've never created before. And likely, will invoke a hunger for exploration you felt when you first touched a modular synth.

Aurora uses a phase vocoder audio engine which separates the input signal's time and pitch domains. By blurring these signals you can achieve beautiful time-stretched tails, or cybernetic metallic effects.

Since Aurora's sonic response is entirely dependent on the input signal, no two patches will sound alike, lending itself to an infinite world of surprise and discovery.

Discovery. It's why we are all here.

A portion of all Aurora proceeds will help the fight against shrinking ice caps and dwindling polar bear populations.

Tech Specs

Width: 12HP
Depth: 22mm
Power Consumption: +12V=215mA, -12V=5mA, +5V=0mA

Notes: Tone is a quad, voltage controlled filter with low pass and band pass outputs. Its four channel architecture enables the intuitive patching of shimmering, polyphonic textures. The 24dB slope provides a warm, buttery character. Self oscillation allows each channel to double as a sine wave oscillator with v/oct tracking across four octaves. Cascade OTA topology. A perfect match for the Chord.

Notes: If we're honest we don't really understand fractals. Something to do with maths, apparently. But that doesn't really matter because we do understand this sequencer module, which is ideal for randomly twisting and morphing sequences.

Supplier notes:
Bloom is a fractal sequencer capable of generating infinitely evolving melodies with a host of musical features.

At its core is a powerful 32 step sequencer with two independent channels and an intuitive interface. What makes the Bloom come alive are its fractal algorithms which can transform existing sequences into powerful melodies, or even generate new patterns altogether. The base sequence is known as the Trunk and can be programmed by hand, or automatically generated with the Mutate function. Once a Trunk sequence is in place, fractal transformations are only a knob turn away by using the Branch and path controls. Each new Branch adds a complete variation to the base sequence and Path determines its passage through the set of recursively generated sub-sequences, offering a unique take on the melody with each turn of the knob.

Bring your sequencing to life with Bloom.

Notes: Harness the Sound of Failure with Data Bender.

Data Bender is a circuit bent digital audio buffer. It is inspired by the ways in which audio equipment can fail. The sounds of skipping CDs, software bugs, and defective tape machine playback are all accessible. The 96kHz, 24-bit audio buffer can hold over a minute of stereo audio, providing a sonic canvas capable of infinite surprises and discovery.

Circuit bent digital audio buffer

Skipping CDs, software bugs, old tape machine, scratched records

96kHz sample rate, 24-bit depth for high fidelity audio with over a minute of stereo sampling time

Stereo IO

Tech Specs:

Width: 14HP

Depth: 28mm

Power: 58 mA +12V, 60 mA -12V, 0 mA 5V

Color: Silver

Notes: Very nice little physical modelling voice, serving up to eight notes of polyphony via stereo outputs. Plucked strings, tuned percussion, an excellent prepared piano mode and more.

Supplier notes:
Surface is a multi-timbral physical modeling voice. Its output ranges from plucked strings and marimbas, all the way to FM drums.

Each model features stereo outputs and up to eight unique voices that can be active at a time.

Notes: ***B-STOCK: Box opened, product in perfect working order***


Record. Mangle. Destroy.

Nebulae is a granular sampler and DSP platform. Its phase vocoder audio engine provides elastic audio, which can be time stretched, granularized, and mangled to no end. With independent control over pitch and speed, and granular controls such as overlap, window, and density, finding new sonic territory is only a knob turn away. Nebulae can use live audio input, a recorded buffer, or audio files as the source material for its powerful audio manipulations. The live input buffer can record up to five minutes of stereo audio at 48kHz, 24 bit. In addition, up to 75 MB of stereo audio can be loaded simultaneously through the USB port. No naming convention or special formatting necessary; just plug and play.

Nebulae lives a double life as an open source DSP platform with an extensive library of off the shelf alternate instruments. You can turn the module into a lush reverb, spectral delay, or tape-style looper simply by loading a new file onto the flash drive. Do you want to tweak one aspect of an existing instrument, even the default functionality? No problem. No prior coding knowledge is necessary to tweak and refine existing firmware to your liking or start with one of our templates. Alternate firmware files can be written with Pure Data, Csound, SuperCollider, and even bare-bones C programs.

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: Excellent value from this unique dual analogue oscillator, heavily based around the concept of 3D morphing using touch-sensitive control strips. Deep modulation options and stable TZFM add up to impressively deep sound design.

Supplier's Notes:
Norand unveils Morphos, a morphing dual analogue oscillators packed with creative features.

3D Morphing

Morphos' preset strips are groups of four specially developed FSR sensors that can precisely detect vertical, horizontal and pressure information from the pressure distribution of your finger. 3D morphing allows you to create entirely new soundscapes by morphing between multiple user presets, in three different dimensions. All at the reach of your fingertips, it opens up a whole new world for live jamming!

The Synthesis

The two all-analogue, digitally controlled Oscillators provide very pure harmonics, 4 waveform types on a continuously variable potentiometer and extremely stable TZFM (Through Zero Frequency Modulation). Thanks to its digital brain, an active calibration system allows it to track over 10 octaves, even at high TZFM ratio.

Contextual Modulation

Morphos inherits Norand Mono's Contextual Modulation technology, adapted for the modular world. It is possible to modulate every parameter under CV. The module provides 3 Modulation Modes - Attenuverter, Modulator and Ping Envelope - allowing you to modulate timbre and create drum sounds.

Technical Specifications

Synth Voice Features

Fully analogue signal path 2x analogue oscillators Continuously variable waveform Thru-zero frequency modulation Hard-sync

Modulation Features
Controls: 8x dedicated ping envelopes 8x dedicated modulator
Modulator: 4 waveforms Type settings : Free/Synced/Audio-Rate Audio-Rate anti-aliased, quantized to OSC1 Free from 0.1 to 80 seconds
Envelope: Decay segment from 10us to 20s

Memory Storage: 4 banks 3 layers per bank 4 presets per layer
Outputs
Eurorack level audio outputs: Output level: 10Vpp maximum Output impedance: 1000 Ohm
CV outputs: Voltage range: -5V/+5V 1V/oct resolution : 3 cents of a semitone
Electrical Specification: +12V: 460mA -12V: 90mA +5V: 0mA

Physical Specifications
Width: 28HP
Height: 3U
Depth: 25mm

Warranty: 2-year Norand warranty

Notes: Cursus Iteritas is an oscillator that works from a dynamically generated wavetable. It gives the user spectral-like controls over three different modes based on different conceptualizations of frequency: Fourier, which uses sine waves; Daubechies, using wavelets, and Walsh mode, using the Walsh transform. Cursus Iteritas parametrizes a wide variety of sounds, but because the sounds are all based on orthogonal functions, it has a musical tone structure and can produce an extremely wide variety of harmonic sounds.

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

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: A fresh take on granular processing with this stereo DSP module. Grain delay, texturising and freezing with plenty of hands-on control and modulation via CV, gates and triggers. Versatile.

Supplier's Notes:
Melotus Versio is a stereo texturizer that uses granular processing to transform and reshape sound.

Designed to be played by hand or manipulated within a patch, Melotus is everything from a grain delay to a completely transformative texturizer with grain control and manipulation of triggering, direction, and randomness.

Filter audio with a lowpass/highpass combo filter that adds haunting shimmers and subharmonics. Freeze grains by hand or with triggers and gates, or clock them to create rhythmic effects.

Plus, Melotus Versio is part of the Versio DSP platform: transform it into a completely different effect by loading a growing number of alternate firmwares, completely free - or develop your own firmware with our open-source documentation.

Notes: Desmodus's Aggressive Reverb/Delay Counterpart.

Not quite a reverb, not quite a delay, it's Desmodus's more aggressive clocked counterpart. More distortion, more in-your-face atmospheres, and synced delays for creating your tails in a whole new way. Use Electus Versio as a spacey clocked delay, as a reverb that starts with some synced echoes, or as a completely new way to create evolving spaces.

Notes: Desmodus's Aggressive Reverb/Delay Counterpart.

Not quite a reverb, not quite a delay, it's Desmodus's more aggressive clocked counterpart. More distortion, more in-your-face atmospheres, and synced delays for creating your tails in a whole new way. Use Electus Versio as a spacey clocked delay, as a reverb that starts with some synced echoes, or as a completely new way to create evolving spaces.