Notes: Originally inspired by audience applause, hip-hop samples, and classic drum machines, Fracture is a multi-particle percussion synthesizer that applies concepts from classic analogue clap circuits to granular synthesis methods.
It all starts from proprietary micro-samples we recorded specifically for this purpose and ends with an engine built to suit these samples.
Unlike our other percussion module, the Chimera which uses impulse rich samples as it's tonal centre, Fracture uses single impulse samples like Claps, Snaps, Ping Pong Balls, Opening a beer can, and many more. It then plays a group of similar samples back in a psuedo random order for unique hits. Density, Decay, and Tail affect tone and how "tight" your virtual clappers are to playing together.
Our goal was to design a clap percussion module covering the range from classic drum machine claps all the way to full audience applause. We ended up with a module that covers a huge range of timbres beyond claps. We hope this engine provides you with the tools to intuitively create wild percussion sounds that bring your system to life in a new way.
B-STOCK: Box opened, product in perfect working order
Notes: ***B-STOCK: Box opened, product in perfect working order***
TOPOGRAF is a drum sequencer with three tracks, that works with a "topographic" principle; it contains a number of drum patterns arranged in a "virtual map"; and with two knobs MAP X and MAP Y you can set a position in this map. With one knob per channel the density is defined; and a CHAOS knob brings some randomness into the whole process. All in all, a few knobs for a lot of drum patterns you probably wouldn't make this way by yourself - a nice source of inspiration and also great for playing live.
TOPOGRAF is the AE modular version of the Grids module by Mutable Instruments. It is 100% identical to Grids.
Notes: Mad dual-channel filter with two peaks per channel. Chain the sides together for complex filter curves, process stereo sounds or even turn up the resonance for four self-resonating peaks.
The Stereo Dipole is a Quad Multi-Mode VCF featuring single, dual and quad peak filter outputs.
Designed to be clean or characterful, the Stereo Dipole is not intended on achieving any one type of sound. From clean frequency-based panning to complex phasing and formant synthesis and over-driven squelchy bass lines, Stereo Dipole offers an environment which is simple enough to use, while providing the versatility to push your sounds into unknown territory...
Comprised of two identical filter sections that can be used independently via the dedicated Resonance (RES), Primary Cutoff (FREQ) and Secondary Cutoff (SPREAD) controls as well as in tandem via the STEREO FREQ and STEREO RES controls in the centre of the module.
Both the Left and Right Channels feature Single Peak POLE and Dual Peak DIPOLE outputs.
High Pass, Low Pass and Band Pass outputs are individually selected via the switches, situated above POLE and DIPOLE.
The Dual Peak DIPOLE output can be routed either in Series or Parallel with the main POLE VCF while maintaining all possible configurations of the Selected Filter Types.
Series and Parallel combinations will provide capabilities such as 24dB/OCT HP/BP/LP, Variable Width Band Pass and Notch as well as other obscure filter combinations.
FREQ controls the Cutoff of both the Primary and Secondary VCF while SPREAD is used to Match (centre position) or Offset the Secondary Cutoff Frequency by +/-5 octaves..
DIPOLE AB is a Quad Peak Monophonic Output, sharing the same Routing and Topology combinations of the four VCF cores.
The A input (LEFT) provides Normalization into the B input (RIGHT), allowing for a stereo image to be created from any monophonic signal source. All four A/B outputs can be utilized in stereo for more complex stereo filtering applications.
Pre-Filter Input DRIVE Control on each channel will push the input signal into heavy soft-clipping and saturation; adding Harmonic Content and increased low end for the VCFs to bite into. A Sine Wave can be over-driven enough to be useful with pleasing results.
RESONANCE may be nuanced or pushed all the way into Self-Oscillation across the entire bandwidth of 20+ Octaves.
All VCF cores Track 1V/OCT and Temperature Compensated.
The Stereo Dipole can fully function as a Single, Dual and Quad Sine Wave VCO/LFO.
The Series Routing configuration allows for additional tonal oscillation capabilities via the DIPOLE and DIPOLE AB outputs.
In addition to the A, B and Stereo 1V/OCT Inputs, the SPREAD CV Inputs may also be used as direct and accurate 1V/OCT control of the Secondary Peak on each channel.
Individual and Stereo Control Voltage inputs including Attenuators for STEREO RES, RES A/B and STEREO FREQ as well as Polarizing Attenuators for each Channel's FM CV input.
Clean/character auto compressor & distortion - 4HP
Notes: Autodyne is a 4hp auto-compressor/distortion featuring a multi-mode side chain filter and NY style parallel compression blend control.
Ratio, Threshold and Gain are all built into a single, simple to use COMP control. Compression gets more extreme as this control is swept past centre position. Setting below centre offers more subtle/typical compression.
Autodyne Automatically Responds to Transients, will glue a mix with ease and dial in the perfect feeling of the program material you feed into it.
GAIN CONTROL to trim the final output gain or offer up some extremely brutal distortion, whichever you prefer.
Switchable Side Chain Filter is provided along with a triple slope high pass filter, in order to retain lower frequency content and unwanted over-compression by removing them from the Side Chain. Input signal is normalized into the Side Chain or an external signal may be utilized via the Side Chain Input.
Parallel Compression BLEND Control mixes the unaffected input signal with the compressed output for even further control of your sound. Compression may be bypassed simply by sweeping this control to minimum position.
Controls are simple enough to match in tandem for dual unit, stereo operation, if desired.
Audiophile grade discrete components and Burr-Brown op amps used throughout.
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.
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.
Dual attack generator featuring two ASR envelopes with linear voltage curves
Notes: The Model 180 is 100% discrete transistor core dual channel A/D A/H/D function generator (envelope). A trigger or gate signal greater than 2.5v at the "trigger" input causes the output CV to linearly ramp up to its maximum value at a speed set by the "attack time" pot. Once reaching the maximum CV output (set from the factory at 5v but easily adjustable via trimmer) the module will hold at this level for a static duration set by the "note duration" pot, or will hold at its maximum level as long as the trigger input is high. This behaviour is selected with the "controlled internally" vs. "controlled by trigger length" switch. At the end of the "hold" period the CV output will ramp back down to approximately 0v at a rate set by the "decay time" pot.
Like many "west coast" function generators, the envelope cannot be retriggered until the attack phase is complete, allowing for some function as a clock divider etc. The attack, hold, and decay times can be set very fast, and the module can easily create percussive blips as well as longer drawn out envelope shapes.
Dual sine-sawtooth generator based on Model 158 from the Buchla 100 series
Notes: The Model 158 is a dual oscillator created out of an entirely discrete transistor core. It consists of two independent and identical sides each with a front panel tuning knob, a frequency modulation input and attenuator, and a knob to fade smoothly between saw and sine waves. The RED PANEL model 158 is based off of the original "A" variant of the 158 oscillator.
The 158 was one of the very first voltage controlled oscillators ever produced. As such it contains many particular quirks/rawness of this first generation of synthesis. The exponential scaling of the oscillator is far from accurate, there is no temperature compensation, quick changes in pitch produce a slewing effect, and the saw waveform only vaguely resembles a saw wave through part of its range. It is as accurate a recreation as we believe is possible with the components available today. We performed hundreds of listening tests to find suitable replacements for obsolete transistors, and hand select multiple transistors on each individual unit to ensure that they have the proper sound.
Notes: The 156 is an accurate reproduction of the original 156, however it's accuracy also means that it's functionality is based entirely on the needs of a cohesive system designed in the mid 60's. It cannot work with negative voltages, the maximum gain is set at 1:1, and the transistor core makes it inherently nonlinear.
The 156M is a modern update of the original 156 that we feel both works within the paradigm of the original 100 series and helps to interface with modern Eurorack gear. Like the 156, the 156M consists of two independent voltage processors. Each side can mix between 2 independent control voltages. This mix can then be offset by either a positive voltage or (unlike the original) a negative voltage. The mixed and offset control voltages can then be attenuverted - which allows the user to set the gain in either a positive or negative direction and can also boost the gain to approximately 1.5x the original signal. In essence, the combination of these three facilities allow you to mix, offset, compress, expand, invert, amplify, or scale any CV source.
Notes: The Model 156 was likely the first "CV manipulation" tool ever available to modular synthesists. In the original 100 series environment, the 156 was used as a front end to nearly every other module with a CV input. The majority of CV inputs throughout the 100 series do not have associated attenuators or offsets built into the modules, and thus they relied on the 156 to scale, offset, and attenuate the voltages traveling around the system. The 156 consists of 2 independent "voltage processors" Each with a control to mix the two inputs, add a voltage offset (positive only), and then a control to mix between the external CV to be processed and the internal offset. In addition, the "B" channel has an inverting input. The 156 is as close a replica to the original 156 as possible, and is built entirely of discrete analogue components.
Notes: The Model 110 is 4 independent transistor based voltage controlled amplifiers behind one panel. Each VCA (or "gate" in the original terminology) consists of an audio input with an attenuator, a CV input, and 2 outputs. The VCA's are AC coupled - meaning that they will not pass slow (or static) control voltages. The VCA's are calibrated to unity (an input of a 10v peak to peak audio wave, will produce a 10v peak to peak audio wave at output) when 5v is applied to the CV input and the attenuator is at approximately the 3'oclock position.
Notes: Unlike the later (and better known) Model 292, the original low pass gate - the Model 110 is entirely transistor based (rather than vactrol based like the 292), and is much faster.
32 step sequencer with fractal-like pattern generation
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.
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.
Notes: Presets on a modular? Sacrilege! Or the best of both worlds, depending how you look at it. We'll probably go with the latter, because this is a super versatile little programmer/sequencer/preset storage module.
The 22 HP interface is simple, clean and streamlined. At first glance, Polyend Preset module might look like simple a digital preset manager for Eurorack systems, but it's much more than this. Its vast implications make it a very smart companion for your modular system. But let's start from the basics. With the use of 9 LED coloured clickable encoders, Preset allows you to store up to 9 different CV output values in 32 banks of 32 presets. Yep, 1024 in total!
Program the notes sequences using one of the 32 build-in musical scales. Record the automation using the encoders or external source.
Four modes, totally different possibilities:
Depending on what you want to achieve, there are four modes you can choose from: First, Next, Channel and Note.
Both First and Next modes are perfect for building your unique polyphonic synthesizer.
The Channel mode lets you choose which MIDI Channel is responsible for which voice. This mode is what the majority of users utilise to connect DAWs or external sequencers.
The Note mode translates data received from MIDI Notes C through G and directs them into the corresponding voices (no matter the octave). This scenario works excellent for triggering drums from drum pads or drum triggers.
Notes: Eight-voice modular synthesis? Yes please. Updated version of the Poly splits your MIDI signal to CV and gate for fully polyphonic action. Chain multiple units for even more multi-voice madness.
The Polyend Poly 2 module is a polyphonic MIDI to CV converter Eurorack module, and it will change how you interact with your sequencers, controllers, DAW, and more. This powerful module features MIDI I/O plus USB A and USB B inputs, with a total of four Gate outputs, four Pitch outputs, and 12 outs for CV (CC 0-127) signals. And using the Smart Thru connection, you can daisy-chain multiple Poly 2 modules together for even more voices. And Sweetwater was excited to report that Poly 2 is even compatible with the MPE (Multidimensional Polyphonic Expression) standard used in innovative controllers such as the Roger Linn Design LinnStrument and the ROLI Seaboard series. Once you've explored the polyphonic expression the Polyend Poly 2 module is capable of, you'll never want to be without it.
No matter what kind of MIDI controller you use - keyboard, ribbon controller, pressure pad, or whatever - the Poly 2 module offers built-in scale filtering rewards you with highly musical output. Select a scale, and only the notes within that scale will be passed along to your patch destinations. This is different from scale quantization, which forces ANY input to trigger the note its closest to in the scale, and can make it much more enjoyable to use alternative MIDI controllers with the Poly 2 module.
Notes: Release your mind and release your modular system, with the Polyend Anywhere power compatibility Eurorack module. The Polyend Anywhere hooks up to any Power Bank battery to allow the user the liberty of portability with their modular system. Take your system for a walk! Smell the flowers, and use the inspiration to create the simultaneous feedback/AM/FM patch you've been dreaming of!
Notes: Distortion is fun, but it's even better when you split it up across the frequency spectrum. Seca Ruina takes an input, splits it up into three frequency bands, and lets you drive them into annihilation. SR includes a bypassable VCA on the output and CV over individual band and universal drive amount. With individual outputs for each band, you can process each band further externally. So much potential in only 6hp!
Four-channel precision adder, buffered mult, and transposition tool
Notes: Quantus Pax is a four-channel precision adder, buffered multiple, and polyphonic transposition utility. Each channel has two CV inputs and can be further modified by the three Xpose inputs. QP is made with high quality low-tolerance resistors for unbeatable accuracy. Patch-wide key changes, polyphonic movement, mathematically derived melodies, and more are all to be had with this simple but useful utility.
Notes: Basimilus Iteritas Alter is a parameterized digital drum synthesizer with its roots in the analog world. At its heart, it is a simple six-oscillator additive synthesizer with adjustable waveform, harmonic spread and decay. Adjustable attack including a noise oscillator is also included. dLese are summed and fed into an in..nifolder for crunch and variety.
Basimilus Iteritas Alter is an improved version of Basimilus Iteritas. It is 2HP smaller, includes CV of switches, adds an third mode, and pitch range and knobs know offset rather than attenuate.
Notes: Ataraxic Iteritas Magnus is an extension of the first Eurorack module, the Ataraxic Translatron. AIM starts with one of three bit tables shaped via variable interpolation that is then scrolled through, amplitude modulated, folded, and distorted by the CV-controllable front panel controls. Subby basses, metallic drones, unrelentingly digital timbres and more are all to be had from the AIM. Ataraxic Iteritas Magnus is the 5U version of the Ataraxic Iteritas. Guaranteed to make the fax machine jealous on an even bigger scale.
Notes: The VCO/DCO is a voltage controlled analogue oscillator module. This can also be used as a DCO, eliminating the need for heating and temperature sensitivity. All functions except for the FM input are also available with the DCO. Sawtooth, triangle, rectangle and pulse are available as waveforms, with soft switching between the individual waveforms. This can also be done with a control voltage, so you have additional PWM modulation.
The power consumption is +/- 30 mA. The module has a width of 8 HP (40 mm).
Voltage controlled LFO, switchable to oneshot mode
Notes: The module VC LFO accommodates a slowly oscillating oscillator, which is primarily used for modulations. It has five waveforms, CV input with attenuator and a control range from 10 seconds to 100 Hz. In addition, the LFO has its own reset input, over which the waveform is restarted. If you set the speed accordingly and have a separate reset pulse, you can synchronize the LFO with a sequencer. The following waveforms are available: rising sawtooth, triangle, falling sawtooth, rectangle and sample & hold.
The output voltages are maximum +/- 5 volts. The module has a width of 8 HP (40mm).
Analogue synth module composed of three drum voices - 12HP
Notes: The module TT/CO/CL 522 is an enhanced circuit was used before in the MFB 522, Tanzbar Lite and Tanzbar drum machine.
As a modular concept you have the possibility to control the parameter DECAY, TUNE and PITCH (only Tom/Conga) via CV-signals from Envelopes, LFOs and Step Sequencers. The unit can be triggered by different signals.
Beside sequencer generated analogue and digital trigger-signals drum pads, piezo pickups and dynamic mics may also be used. Here the SENS controls allow individual adjustment of the input sensitivity. Dynamic triggers also change the volume, tone length and pitch.
The functions of Tom/Conga in detail:
DECAY adjusts the decay time up to one second.
TUNE sets the frequency of the TOM from 80 to 150 Hz (CONGA 120 to 200 Hz).
PITCH controls the duration and intensity of the pitch envelope.
ATTACK sets the click transient of the Tom/Conga.
To switch between Tom and Conga, a trigger impulse is needed.
For the CLAVE, DECAY adjusts the decay time. TUNE calibrates the CLAVE between 800 and 1500 Hz.
Analogue module composed of three drum voices - 12HP
Notes: The OH/HH/CY module is based upon the cymbal and hihat sound-circuit of the MFB-522 drum-computer, slightly modified and expanded.
The module was developed as a modular component. Therefore, the parameters decay for cymbal and open-hihat and tone can also be controlled by CV-sources like envelopes, LFOs, step-sequencers. Manual adjustment is available for the parameter tune that affects both cymbal and hihat as well as for the closed-hihat's decay.
Triggering open-hihat, closed-hihat and cymbal of the module is possible through various signal types. Besides sequencer generated analogue and digital trigger-signals, drum-pads, piezo and dynamic microphones may also be used. Here, the controls allow individual adjustment of the input sensitivity. Dynamic triggering will not only affect the sound's volume but also attack and sound length slightly. The functions in detail:
HIHAT: The hihat sound is created by several square-oscillators that are fed into a band-pass-filter. Two decay controls allow individual sound-length-adjustments for closed- and open-hihat. In addition, the decay parameter for the open-hihat can be controlled by CV-voltage.
TUNE: Sets the frequency for all square-oscillators simultaneously. Because the cymbal sound accesses the same oscillators, tune also affects this sound.
CYMBAL: The cymbal sound is based upon the same sound source as the hihat, only that it uses two band-pass-filters that individually shape the attack- and decay-phase. However, the decay parameter controls the length of both attack and sound length. This parameter can also be controlled by an external CV-source. Tone sets the balance between the differently filtered signals paths. This parameter is also under CV-control but does not offer an internal attenuator.
A specialty of the cymbal sound is its tone-input. Here, you can connect an external sound source that replaces the internal square-oscillators for the decay phase. The internal oscillators are still in use for the sound's attack-phase.
Notes: The ADSR module is a voltage-controlled envelope generator. Normally, the characteristic is logarithmic, but a linear part can be added. With the help of the loop button, the envelope can also be used as an LFO, then Attack and Decay determine the frequency that goes far beyond 100 Hz. Another special feature is the CV inputs for Attack, Decay and Release. This can be used e.g. control or modulate the times externally. In addition to the normal output, there is an inverted output in parallel.
The power consumption is +/- 30 mA. The module has a width of 8 HP (40 mm).
Notes: The DRUM-99 module is an audio-mixer that has been designed for the modules of the MFB-DRUM series but also for usage with other manufacturer's modules. When using multiple drum-modules in a modular system, the following processing stages like filters or VCAs often lack enough audio inputs. To route a complete drum-set through a filter, a separate mixer like the DRUM-99 comes handy.
DRUM-99 offers five monaural inputs with individual level control. Tiny trim-controls are used to set the channel panorama position for the internal stereo-bus.
A fixed level stereo-input can accommodate the signal of one or more additional DRUM-99 modules. These inputs can also be used with the DRUM-06 module (Tom Tom) that also offers a stereo-output.
All five mono signals and the stereo-input are routed to the stereo-output that can be connected to two VCAs, filters or other sound manipulating devices. The output may also be used to connect the DRUM-99 to a mixing-console or audio-interface.
The stereo-output is designed for a possible summing with additional stereo-outputs.
CV controllable digital delay with delay time from 2ms to 4000ms
Notes: The Digital Delay Module is a CV controllable digital echo with delay times of about 2 ms to 4 seconds.
The circuit comes from the MEGAZWERG has been improved in some points.
The audio signal is connected to the "In" socket and is connected to the "Out" socket again, depending on the Mix knob (left Original, right the Delayed). The signal can be limited with the "In" control. The LED indicates an overload.
The delay time is set with the Time slider and can be modulated via the CV Time input.
With the switch "Freeze" or with a positive voltage at the "Freeze In" the input signal can be frozen.
If the "Time" control is set to max. is equal to the input voltage at CV Time about 1V/oct and the range is 4 octaves.
With the "Range" control the delay can be roughly changed in time steps. The Feedback slider adjusts the amount of signal feedback. Using the FB Send and FB Return jacks, the feedback signal can be tapped separately, routed to another module or external effects unit, and fed back into the delay.
The module is compatible in design and bus power supply to the Doepfer A-100 modular system.
The power consumption is +/- 30 mA. The module has a width of 8 HP (40 mm).
Clap module based on circuit designs of the MFB-522 & Tanzbar Lite
Notes: The Clap-522 Modul contains an enhanced circuit of the MFB-522 and Tanzbar Lite. You can edit and modulate the sound in a wide range.
As modular concept you have the possibility to control the parameter PUSE, SNAP, ATTACK, DECAY and FILTER via CV-signals from Envelopes, LFOs and Step Sequencers.
The parameters are in detail:
PULSE is the amount of claps between 1 and 7.
ATTACK sets the noise level between the clap repetitions.
DECAY controls the release of the noisy reverb.
FILTER defines the colour of the noise floor.
WIDE edits the gap between the single claps.
Beside sequencer generated analogue and digital trigger-signals, drum pads, piezo pickups and dynamic mics may also be used. Here the SENS controls allow individual adjustment of the input sensitivity. Dynamic trigger also changes the volume of the clap.
The module provides the new developed M-Bus connection. MIDI signals can control following destinations:
Trigger MIDI Note #39 or #82, switchable, with Velocity. Controller values for Wide, Attack, Decay and Filter.
Analogue synth module composed of three drum voices - 12HP
Notes: The module CB/RS/MA-522 is an enhanced circuit previously used in the MFB 522, Tanzbar Lite and Tanzbar drum machine.
As a modular concept you have the possibility to control the parameter DECAY and TUNE via CV-signals from Envelopes, LFOs and Step Sequencers.
The unit can be triggered by different signals. Besides sequencer generated analogue and digital trigger-signals drum pads, piezo pickups and dynamic mics may also be used. Here the SENS controls allow individual adjustment of the input sensitivity. Dynamic triggers also change the volume, tone length and pitch.
The functions of Cowbell in detail:
DECAY adjusts the decay time.
TUNE sets the cowbells frequency.
The functions of Rimshot in detail:
DECAY adjusts the decay time.
TUNE calibrates the frequency.
The Maracas owns a DECAY who sets the release time.
The modul provides the new developed M-Bus connection. Midi signals can control following destinations:
Trigger Cowbell MIDI Note #41, MIDI CC for Tune = 21, Decay = 37
Trigger Rimshot MIDI Note #37, MIDI CC, Tune = 19, Decay = 35
Trigger Maracas MIDI Note #70, MIDI CC, Decay = 46
Notes: The Bass-522 module is based on the 522 circuit and offers a punchy attack, long decay and wider pitch range. Adjustable noise and pitch envelope have also been added.
The sound can be triggered by Gate, M-Bus and signals like piezo pickups, dynamic mics and drum pads. The Sense parameter decides the sensibility and dynamic of attack, amplitude. decay and pitch.
The following parameters are available and can be controlled by CV:
TONE dampens the attack transient.
DECAY sets the release time of the amplitude.
TUNE defines the basic pitch from around 35 to 70 Hz.
PITCH controls the amount of pitch envelope.
NOISE mixes the noise floor (no CV control).
The module offers the new developed M-Bus connector which means you can you control everything via MIDI/CV interface or the new MFB SEQ-01 Pro Drum Sequencer without additional patching. The following addresses are supported:
Trigger with Velocity - MIDI Note #35 or #36 (switchable) and controller values for Tone, Decay, Tube, Pitch and Noise Decay.
Notes: The 24dB VCF SSI is a voltage controlled analogue low pass filter module with the new SSI2144 chip. In addition, it has a 12dB output that works either as a low pass or bandpass (+/- 12dB). There are two inputs, one with attenuator. Another CV input with attenuator is available for the cut-off frequency. The resonance is controlled either via a controller or via another CV input with attenuator.
The power consumption is +/- 30 mA. The module has a width of 8 HP (40 mm).
Notes: Here's the Roland 100M VCO adapted to Euro. The hard-to-find UA726 has been replaced with a CA3046 with no loss of performance. No hard to find parts whatsoever. The PCB also includes pads for SMD LM3046. It'a the golden age right here.
- A six position rotary switch for octaves gives plenty of range. The PITCH pot is fine tune
- Individual outputs for ramp, square and triangle - an improvement on the original
- Built in chip heater
- Onboard LFO! Yes that's right, an onboard LFO (thanks MC202) for introducing FM and/or PWM
Synth module featuring two separate voltage processors
Notes: The upper voltage processor features four inputs which are mixed and inverted at the output. Inputs 2 and 4 have their own attenuator. Input 2 is normalised to a positive fixed voltage source, which may be attenuated, and appears inverted at the output, useful for applying negative offsets.
The lower voltage processor features two inputs which are mixed and inverted at the output. Input 2 has its own attenuator. Input 2 is normalised to a negative fixed voltage, which may be attenuated, and appears inverted at the output, useful for applying positive offsets.
Notes: CEMosc is here, a stable AS3340 based VCO which tracks beautifully, and is feature rich. Easy to build and calibrate too.
- Onboard voltage regulation for tuning and tracking stability
- A rotary octave switch as well as a fine tune knob
- Both manual PW as well as PWM are available
- Linear and Exponential FM inputs, each with attenuators
- Both soft and hard sync
- Sawtooth, Triangle and Pulse outputs
Notes: Erica Pico VC EG is versatile looping AD/ASR envelope generator with voltage control over attack and decay times. It has automatic Trigger/Gate detection, as well as "drone mode" - at full CW setting of the Decay knob, the envelope is full open. In the LOOP mode you can retrigger envelopes for even more interesting modulations.
Notes: Erica Pico LPG is our take on classical Don Buchla LPG designs. We use vactrols in the circuit for that signature sound, and we added some more features, like configurable resonance and built-in decay envelope.
Expanded version of the popular Yocto (808) cowbell
Notes: Latvian modular specialists Erica take on the 808 cowbell. Based on the classic sound, reinvented for Eurorack with tune and decay controls plus tuning CV and accent inputs.
Erica Synths Cowbell module is an extended, modular version of Yocto (808) cowbell. For more sonic versatility we have added Tune and Decay controls, as well as Tune CV with an attenuator for nice vibratos. The module is developed in collaboration with a French company e-licktronic.
Notes: Erica Synths Black Multi is highly accurate active buffered 2x1to3 or 1to6 multiple that will work for signal splitting in any circuit, including driving several VCOs in tune from one CV source. "Octave" or +/- 1V offset switches on both channels allow to add or subtract one volt form each channel thus transposing VCOs one octave up or down. Hidden feature - custom offset - allows to set user defined offset on the first channel.
Polivoks-inspired module for Eurorack format - 46HP
Notes: The idea of the Polivoks Mini analogue synthesiser came into mind in 1990, as the junior version of its older brother well known Polivoks full synth. The aim was to develop a way simpler and lighter device that has less components, offers the same broad capabilities, and removes possible flaws of the Polivoks full synth. As the result of this research a new minimalistic schematic appeared. It has fewer controls that are compensated by greater functionality.
The overall design of the Polivoks Mini is made in collaboration with Ms. Olympiada Kuzmina, Polivoks full synth concept designer.
10HP filter module based on the original parts of a well known Russian Synth
Notes: The Polivoks Filter Module, from Elta Music, utilizes the classic Soviet filter chip for a unique and iconic filter tone, and brings it to the Eurorack modular format. It provides two CV inputs with individual depth pots for ultimate control over cut-off frequency. One input with sensitivity control and four outputs are available simultaneously - lowpass, bandpass, highpass and notch filter types.
Frequency divider for clock, trigger & gate signals - 4HP
Notes: Module A-160 is a frequency divider for clock/trigger/gate signals, designed to be a source of lower frequencies, particularly for rhythm uses. The Trigger input will take clock signals from, e.g. an LFO, MIDI sync, or the gate from a MIDI-CV interface.
At the outputs, you have access to the sub-divided clock signals, from half the clock frequency down to 1/64. The low/high levels of the output signals are 0V and about +10V.
The A-160 also has a reset input. Whenever a reset signal is sensed, all outputs are set to zero, until the reset voltage disappears.
The Clock Divider can be used in combination with the A-161 Clock Sequencer to produce stepped sequences with a length of from one to eight events.
Dual quantizer for CV's, converting a continuous positive input voltage into a stepped output voltage - 8HP
Notes: Module A-156 is a Dual Control Voltage Quantizer. A quantizer converts a continuous control voltage in the range 0...+10V into a stepped output voltage in the same voltage range (i.e. only certain voltages occur). Normally 1/12 V steps are used to obtain semitone steps. Quantizer 2 of the A-156 allows has more sophisticated quantizing modes like major scale (i.e. only voltages corresponding to the major scale), minor scale, major chord, minor chord, fundamental + fifth and addition of seventh or sixth when chords are selected. Only those voltages appear at the CV output which comply with the selection rule (e.g. minor chord with seventh). The mode setting of quantizer 2 is done with 3 switches (1-0-1 type with middle position). From the factory quantizer 1 is working in the semitone mode. But there is a jumper on the pc board that can be changed so that even quantizer 1 uses the same scale as quantizer 2.
For each quantizer the following in/outputs are available:
- Control voltage input (CV In): The input for the continuous voltage to be quantized
- Control voltage output (CV Out): The output of the quantized voltage
- Trigger input (Trig.In): If this jack is left open the quantizer is working permanently. If a rectangle voltage is applied quantisation happens only at the rising edge of the signal (e.g. from an LFO or MIDI-to-Sync interface). Thus the quantizing can be synchronized with other events
- Trigger output (Trig.Out): Whenever a quantisation happens (i.e. a new voltage is generated at the CV Out) a positive pulse occurs at this output. It may be used to trigger an envelope generator (ADSR) or for triggering other modules (sequential switch A-151, trigger divider/sequencer A-160/161, trigger delay A-162, ...). If none of these functions are used the jack is left open
On top of that the A-156 is provided with a common transpose CV input having an additive effect on both quantizers. This input is quantized in semitone steps. A typical application is the transposition of a sequence generated by the A-155 by a second control voltage (e.g. coming from the MIDI-CV interface A-190).
- Quantizing the CV sequence generated by an A-155 (semitone, only major scale, only minor scale and so on)
- Quantizing the voltage coming from the Trautonium Manual / Ribbon Controller A-198, Theremin A-178 or Light-to-CV module A-179 to get accurate semitones or major/minor scale tones
- Arpeggio-like effects with LFO, random, noise, envelope generators as CV sources (for negative or symmetrical voltages an offset must be added, e.g. with the offset/attenuator module A-129-3, to obtain positive voltages for the A-156 input)
3-way logic module featuring two internal signal inverters - 8HP
Notes: Dual logic module with 3 inputs for each unit. The logical states of the inputs ("1" = high / "0" = low) are linked together in 3 ways: AND, OR, EXOR (exclusive OR). The three functions are available simultaneously at three outputs with LED display of the output states.
Additionally, two inverters are available to obtain the inverted functions NAND, NOR and NEXOR. The sockets of each triple unit are "normalized", i.e. the switched contact of socket 2 is connected to input 1 and the switched contact of socket 3 is connected to input 2. Provided that no plug is inserted into socket 1 resp. socket 2 the socket is connected to the input above it. This simplifies the usage of the module when only 2 signals are combined, e.g. the logic functions AND and OR have different neutral input levels ("1" is the neutral state for AND, "0" is the neutral state for OR).
In case of a fixed input level for the unused input one of the functions (AND or OR) would work no longer.
Applications: combination of digital signals of the A-100 (e.g. gates, clocks, triggers), e.g. to obtain "gated" clocks or certain rhythmic patterns.
Simple & effective voltage-controlled frequency divider - 8HP
Notes: Module A-163 is a voltage controlled audio frequency divider. The frequency of the input signal (preferably the rectangle output of a VCO) is divided by an integer factor N (N = 1, 2, 3, 4 ... up to 32). N can be adjusted manually and modulated with an external control voltage (e.g. from LFO, ADSR, Random, MIDI-to-CV, Theremin, Light-to-CV, analogue sequencer) with attenuator. The control input has polarizing function, i.e. the manually adjusted dividing factor can be modulated upwards or downwards. The basic idea of a polarizer is described in the modules A-133 Voltage Controlled Polarizer and A-138c Polarizing Mixer.
The output waveform is rectangle with 50% duty cycle. Unlike the A-115 with fixed dividing factors (2, 4, 8, 16) the dividing factor of the A-163 is voltage controlled and can be any integer value between 1 and about 20 (but only one output). In contrast to A-113 the dividing factor of the A-163 is voltage controlled and the output waveform is rectangle (the A-113 has 4 sawtooth outputs with 4 adjustable but not voltage controlled dividers).
Notes: Module A-161 is an eight-step Clock Sequencer which is internally connected to the Clock Divider (A-160). Eight outputs are sequentially switched by the clock signals from the A-160 (see Fig. 1) and can act, for instance, as sequential rhythmic triggers for an envelope. The reset on the A-160 also works on the A-161 (instant return to Step 1). The low/high levels of the output signals are 0V and about +10V. In combination with a mixer (A-138) short analogue sequences can be generated. Our MIDI-Analog-Sequencer MAQ16/3 is suitable for MIDI-controlled analogue sequences up to 48 steps. A "real" analogue sequencer with 8 steps is the A-155.