Synth modules

Notes: Introducing SUM0, a voltage-controlled oscillator with expanded harmonic possibilities, in a Eurorack format.

The 4 classic waveforms are generated by a meticulously designed oscillation engine.

You can modulate its frequency and its pulse width thanks to its integrated LFO, capable of reaching audible frequencies to achieve expressive modulations with the simple touch of a switch.

Expand the voice of your system by creating complex waveforms and high harmonic content thanks to its output mixer. This mixer also has an input to integrate an external signal to the mix output.

Of course, all its parameters (FM, PWM, SYNC, V/OCT) are at your fingertips through its patch points on the front panel.

And of course, assembled with a load of passion in Bocuma's studio-workshop in Guadalajara.

Nerdy-specs:

22HP
+12V > 12mA -12V > 12mA

Notes: Oscar Tria packs a lot of VCO into 10HP. There are three main modes described below.

Green Mode:

A 'traditional' stereo oscillator. In Green Mode you get the usual three waveforms - saw, triangle and square (with variable pulse width, of course) but you can continuously vary the waveform between the three. For instance, by turning the waveform knob to be just to the saw side of triangle, you get a sound very much like the Minimoog's 'shark tooth'. Green mode also gives you a square wave sub oscillator - one octave below the main oscillators - and a sub sub, two octaves below. Oscar Tria is stereo, of course, so you can detune one oscillator for a rich stereo image - or sum the two outputs to mono and you have two oscillators with two subs, for a BIG sound. Green mode also features through zero FM, and hard sync.

Yellow Mode:

Super-saw! And super-square! And super-triangle! With a sub (of course). Yellow mode allows you to control the number of oscillators making up the super-whatever, from one (not really super) to 24! Again, being stereo you get up to 12 oscillators in one channel and 12 in the other. Add the sub for a HUGE sound.

Orange Mode:

This is a chord engine, with 20 selectable chords. There are controls to select which chord you want and how many notes are played (over two octaves). CV control allows you to set pitch and chord independently, so you can set up a polyphonic sequence, for instance. Again, the output is stereo with detune control of one output.

Notes: ***B-STOCK: Without original box, item shows small amount of damage but in perfect working order***


FLAME "TAKT" rhythm sequencer.

"TAKT" is a compact 30HP Eurorack sequencer module for playing or programming trig- ger/gate/velocity rhythm sequences.

The sequencer has 8 tracks with trigger/gate outputs, 8 velocity/modulation CV outputs and full MIDI functionality. The CV track can also be used independently as a modulation track. Live sequencing in looper mode is possible in two ways: SHOTS for playing "note repeats" or quantized triggering via keys or sensors.

Four tracks can be triggered simultaneously with four external distance sensors. These sensors are just 2HP slim modules that can be rack mounted at desired locations. These are connected directly to the module with narrow and sufficiently long ribbon cables, which also supplies the sensors with the necessary operating voltage. The 4 sensors and the connection cables are included in the scope of delivery. The sensors generate trig- gers/gates and can be switched live as a set between tracks 1-4 and 5-8 (e.g. via foots- witch).

Four syncable LFOs with VCOs for amplitude adjustment are also provided. The LFOs are equipped with many interesting functions. This includes 26 different waveforms, phase, amplitude, speed and output voltage. This can be unipolar or bipolar (0..+5v or +/- 5v) and additionally attenuated by AMP (amplitude) with built-in VCA. This means that the LFO outputs can also be adapted to modules that do not have an input attenuator.

Patterns can be switched live and are each up to 4 bars long. 4 patterns plus a fill pat- tern are saved as a scene. 50 scenes can be permanently stored in the module. This means that 250 patterns are available in total.

Additional inputs and outputs for controls are available. There are 4 CV inputs to be defi- ned by the user, as well as 2 programmable analog clock outputs. On the front there are MIDI input and output as 3.5mm TRS sockets. Firmware updates can be done via MIDI- SYSEX.

HP : 30

Notes: Module A-165-2 includes six modification circuits for digital signals (clock, gate, trigger, start, stop etc.) which are derived from the two input signals Input 1 und 2:

inverted signal of Input 1 (labelled 1)
inverted signal of Input 2 (labelled 2)
T flipflop (toggle flipflop), controlled by Input 1, this output changes it's state whenever a the rising edge of Input 1 appears (labelled 1/2, as it works similar to a 1:2 frequency divider)
Set/Reset flipflop, this output changes it's state to "high" during the rising edge of Input 1 and turns "low" during the rising edge of Input 2 (labelled RS)
inverted output of the Set/Reset flipflop (labelled RS)
pulse output, during both the rising and falling edge of Input 1 a short trigger pulse with about 50 ms lenght is generated (labelled with the sign ± and a rectangle pulse symbol)
The outputs 2, 1/2, RS and the pulse output are equipped with LEDs that display the state of the output in question.
The output level for all six outputs can be set to 0/+5V or 0/+11V by means of a jumper on the pc board.

Voltage thresholds for the input voltages:

voltages below +0,8 V are treated as "low"
voltages above +3 V are treated as "high"
Typical applications

starting and/or stopping of events or switching operations with the RS or RS output (e.g. controlled by the trigger outputs of a sequencer, e.g. in combination with electronic switches)
generation of inverted digital signals
frequency division (1/2 output)
generation of short pulses during the rising and falling edge of a digital signal (e.g. triggering an envelope at both rising and falling edge of a gate signal).
Technical notes

The module cannot be used for bipolar signals! The negative share of the input signal will be clipped by means of a so-called clipping diode at the input of module A-165-2. This may affect the output circuitry of the module connected to the A-165-2 (depends upon the details of the output circuit and if it is protected against clipping). For the planned field of application that's normally no limitation because these signals (clock, gate, trigger) work usually only with positive voltages.
The module can be used for analog signals only to a limited extend! With analog signals the inputs of the module work as comparators and the negative share of the input signal is clipped (as mentioned above).

Width: 2HP / 10.0 mm
Depth: ? mm (measured from the rear side of the front panel)
Current: +?mA (+12V) / -?mA (-12V)

Notes: A passive module to allow easy connection from Modular to Eurorack, avoid flimsy hook probes or alligator wires with a robust connection that will keep your signal intact.

Features:

3.5mm jack to BNC including 50O male-male cables.
Ships calibrated set to 10x as default, user's can select 1x but soldering a smd jumper.

Specs:

4HP
15mm deep
Passive

Notes: The RS808 is a Eurorack module that brings the TR-808's analogue Rimshot and Claves sounds to your modular drum machine at a low cost. It offers the classic sounds plus two unique snappy "click" variations. Two control knobs, labeled Pitch and Snap, adjust the oscillator frequency and envelope decay, providing greater sound variation and control.

The RS808 faithfully reproduces the original 1980s TR-808 circuit and includes a high-powered gain stage for hot, distortable signals. It features a dual input pulse-shaper for stable triggering from various pulse sources. These enhancements make the RS808 an easy and powerful addition to any modular synth setup, delivering authentic analogue drum sounds.

TR-808 is a Trademark of Roland Corp Japan

Size: 4HP
Depth: 14mm
Power: +12V 14ma / -12V 13ma

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

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

And it looks nice.

Features:

3HP

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

...And a love child was born !

Introducing NIGHT RIDER, from RYK Modular

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

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

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

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

Technical specifications

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

Features:

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

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

Vital stats:

Width 16 HP
Depth 25mm

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

Notes: 2-track trigger sequencer/euclidean generator module - 6HP

Running Order is a two track trigger sequencer. It can be a precise master clock or manipulate incoming clock signal and works great in use as a sub-sequencer/divider in your Eurorack environment.

Zero-jitter clock generation: less than 50 microseconds internal clock jitter
101 style 1/16th note input mode (step/rest) with manual or CV controllable amount of triggers repeats when the active trigger step happens
Euclidean mode enabled for each track where we set Euclidean total steps amount in the circle and then amount of triggers happening in that circle.
Per step trigger probability in 101 mode and global probability in Euclidean mode.
Separate synchronization (reset) inputs, sync for track 1 is normalled to sync track 2
Clock divider for incoming external clock allows to quickly obtain various musical divisions on the fly incl. triplets of course, but more importantly tuplets mode allows you to stretch desired amount of triggers happening into a single bar
Separate mute buttons for each track
8 patterns of triggers sequences stored in the module and recalled on the next power up
also available in 1U / 22HP version

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

Dimensions
6 HP
30 mm deep

Notes: The MA808 is a Eurorack module that recreates the TR-808's analogue Maracas drum voice and white noise generator at a low cost, expanding your Tiptop Audio modular drum machine. It features a fluffy, harmonically rich sound that enhances Hi-Hats dynamics. The Attack control knob allows adjustments from sharp Hi-Hat to slow-rise Maracas, with a marker for the original 808 setting.

The MA808 also includes the 808's continuous analogue white noise generator, ideal for creating custom drum sounds or general white noise use. It faithfully reproduces the original 1980s circuit and includes a high-powered gain stage for hot, distortable signals. The dual input pulse-shaper ensures stable triggering from various pulse sources, making the MA808 an easy and powerful addition to any modular synth setup.

TR-808 is a Trademark of Roland Corp Japan

Size: 4HP
Depth: 14mm
Power: +12V 16ma / -12V 14ma

Notes: The First Aid Kit is here to be your first choice, regardless of whether you're picking out your first utility module, building a minimal system or expanding a large system, by offering a powerhouse toolbox built on the principle of "everything you need, nothing you don't."

Offering ten functions in just 8hp, you can feel assured that you are no longer likely to run into dead ends while patching, because you need just one more utility - no need to buy lots of specialized utility units either, which can be both costly and space ineffecient, as you get all in one with the First Aid Kit.

Functions include:

5v DC source
Buffered multiple
LED voltage indicator
Summing 3-to-1 mixer
Signal inverter
Half-wave rectifier
Full-wave rectifier
Gate-to-trigger generator
Attenuverter
Bipolar and unipolar 8v offset generator
Functions can be used independently of each other, and the unit can be patched with itself for even more functions. Enjoy a toolbox that will solve nearly any problem you're facing, all in a compact-yet-comfortable 8hp.

The First Aid Kit replaces lots of other individual modules, and gives both newcomers an excellent starting point for what can feel like boring but necessary purchases, while also offering excellent utility to both large and small systems.

The First Aid Kit: don't get caught without one when you need it most.

Notes: Octogain is a eight voice polyphonic analogue audio VCA plus a eight voice mixer with master level control and odd/even (Right and Left) channels for a stereo output and clipping indicator. All eight VCA ins and outs are simultaneously available through Polytip jacks and 3.5mm jacks so the module can be used in a variety of ways both polyphonic or multi-voice monophonic. The fully analogue audio path has exponential CV control. CV inputs are 0-5V, typical audio input is 10Vp.p. A global Offset knob allow to open all VCAs manually or apply positive offset to incoming CV. The design uses very low power consumption with excellent audio quality.

Size: 16HP - Depth: 40mm
Power: +12V 42mA / -12V 35mA

Notes: The Octovert is a CV processor capable of scaling, inverting, and offsetting up to eight polyphonic signals. It can also be externally controlled via CV! Its most obvious applications include inverting envelopes, reversing the direction of CV, and scaling plus offsetting any CV source to precisely fine-tune the modulation sweet spot of the target module. With the added feature of external control, it takes things even further by modulating the modulation signal itself for even deeper modulation motion.

Size: 6HP - Depth: 40mm

Power: +12V 18mA / -12V 15mA

Notes: The M module is a 5-way Polytip signal multiplier. It takes a single polyphonic audio, CV, or gate signal set and routes it to up to five multiple outputs. The module is completely passive and requires no power. Like all Polytip jacks on Tiptop Audio modules, the jacks on the M module are top-quality components made in Japan.

Size: 4HP - Depth: 15mm

Power: no power required

Notes: Solist is not your average performance mixer and mute combination - far from it. Designed in collaboration with Bries, Solist contains four channels of soft vactrol muting, controlled by tactile and pleasantly clicky mechanical switches. Solist will help make your performances shine - but most importantly, the red solo switches allow you to override the current state of the mute switches, allowing for creative transitions between solo and mute states during your performance.

While the audio circuit is fully analogue, it is also entirely isolated from the digital circuit that controls the mutes. Running on a fast and reliable Raspberry Pi RP2040, you get all the benefits of digital control without the downsides of digital audio processing. Best of all, the mechanical state of the switches determine the state of the module, so even if you power cycle, you will return to your previous state.

The analogue mixer section can be used simultaneously with the individual outputs of the Solist, so for those who already have a mixer solution, the buffered individual outputs will bypass the mixer entirely. You may of course also use both simultaneously for exciting parallel processing opportunities.

Solist brings a whole new aspect of muting and soloing to your Eurorack performances, and with soft opening and closing vactrols, you'll never have to worry about clicks, truncated transients or actuation noise.

Notes: Introducing the Cortisol Legend: a spiritual successor to one of my early designs, the Steroid Legend, it presents as 4hp of white hot saturation and hairy distortion, and features manual control over two op-amp driven gain stages, with a diode saturation control in the middle, giving you precise control over distortion ranging from smoldering saturation all the way into utter rail-to-rail fuzzification.

As for the diodes, the Cortisol Legend has two flavors on tap: Steroid Legend-inspired diodes and genuine, Cold War-era USSR-made Germanium diodes from the far reaches of Europe. These diodes are getting increasingly hard to find, but have been known for their warm and fuzzy characteristics by guitar pedal enthusiasts for years. Here, you get the genuine article, for as long as they can be reliably sourced.

In addition to having control over the saturation depth, the Cortisol Legend offers an additional control parameter: Eustress and Distress. Roll off the edge and noise a bit with a Styroflex-capacitor filter which varies with saturation depth, or leave no edge unjagged with this setting.

Speaking of noise, this thing is LOUD, so you may want to have an attenuator such as the psATT on hand, unless of course the loudness is exactly what you want. Hand in hand with the overdrive and distortion comes, of course, beautiful new harmonics added to anything from single waveforms to samples, sounds and entire mixes.

Various diodes will be available at different times, but all variants are ultimately limited - all Germanium diodes used in these are new old stock from the Cold War, and one day they will run out.. Expect individual modules to have a bit of their own character.

Notes: A couple of years back, Frequency Central developed Cosmic Background as a standalone percussion voice. The concept was to bundle all required sub-modules behind one panel, pre-patched, yet also fully modular, with each sub-module having its own inputs and outputs. This proved to be a very popular product, but Frequency Central decided to replace Cosmic Background's noise generator with a VCO (and do a few other tweaks), creating a cute little fully modular synth voice ripe for sequencing - and that's how Dark Star was born!

Dark Star consists of 4 sections:

Voltage Controlled Oscillator based on AS3340 with sawtooth, triangle and pulse waveforms
Voltage Controlled Filter with lowpass and highpass options, Drive control, Sweep control which attenuates amount of Release CV
Release generator with CV input for voltage control of release time. Option for sustain via jumper on rear panel.
Voltage Controlled Amplifier
Together they form a pre-patched super versatile analogue synthesiser voice.

Additionally, each section is fully modular in it's own right, so there are patch points for:

1V/oct CV input
PWM CV input - attenuator doubles as manual pulse width when no external signal is present
Gate input for Release or Sustain/Release
Release CV input for voltage control of Release time
VCF audio input with attenuator, for introducing external audio
VCF CV input with attenuator (1V/oct CV is normalised to this input)
VCA audio input (VCF is normalised to this input)
VCA CV input (Release CV is normalised to this input)
Release CV output
VCO audio output
VCF audio output
VCA audio output

Here are some useful patches to try:

Release CV output to PWM CV input, for swept PWM
VCF OUT to VCF IN, thickens and further overdrives the filtering
VCO OUT to VCF CV input, for fizzy FM of the filter
Use a multiple to patch 1V/oct to Release CV input, lower notes will have longer release, higher notes will have shorter release

Product Specifications

12V draw: 28mA
5V draw: 0mA
-12V draw: 28mA

Depth: 35mm
Width: 16HP

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


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

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

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

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

Dimensions
8 HP

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


Tiptop's reissues of iconic Buchla modules continue with the 285 frequency shifter. Edgy, twangy harmonic modulation with ring mod options and stereo operation via sum and difference outputs.

Supplier's Notes:
The 285t combines two sets of functions: the top section features a frequency shifter, while the lower section includes both balanced modulation and classic ring modulation, all with voltage control. The frequency shifter can shift incoming audio using either its internal oscillator or external audio. Both SUM and Difference outputs are available simultaneously for analogue stereo widening effects and more.

As Tiptop Audio continues its aural odyssey of preserving and transforming the hallmark engineering prowess of Don Buchla's namesake synthesizer modules, the 285t brings a constellation of blistering sonic-contouring tools to your Eurorack array. Like its predecessor, the Tiptop Audio Buchla 285t is a menagerie of modulation madness, offering variable degrees of ring, frequency, and amplitude styles of modulation. Plus, its dyad of modulation sub-modules operates independently, with dedicated audio and CV I/O for each, functionally giving you the sum of performance possibilities you'd get with two modules, all in one instrument. Suffice it to say: Sweetwater's synthesists commend Tiptop Audio on capturing the electric magic of Don Buchla's imaginative engineering while transposing it for the world of Eurorack to experience. For a constellation of timbral sculpting and summitting heretofore unknown peaks of daring synthesis exploration, the Tiptop Audio Buchla 285t Frequency Shifter module is your key. Discover what awaits at the fringes of Eurorack possibility!

Note: This module is not compatible with Buchla system voltages. CV signals require a distinct connectivity configurations. Please contact your Sweetwater Sales Engineer with any questions or concerns regarding compatibility or use in your Eurorack case.

Type: Frequency Shifter
Depth: 1.77" (45mm)
HP Size: 18HP
Power Usage: +12V/70mA, -12V/40mA
Power Supply: Requires Eurorack Case and Power Supply
Manufacturer Part Number: 285t

Notes: ***B-STOCK: Product with some signs of usage but in perfect working order***


Pico DSP is a small brother of the popular stereo effects processor Black Hole DSP. It contains eight algorithms, in detail four delays, two types of reverb, Leslie speaker emulation and an Overdrive/Bitcrusher. Each effect is editable in two parameters. One of them can be modulated using the CV input. Pico DSP features clear, high-resolution sound. Alongside the established standards, it is also possible to generate lots of freaky special effects.

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

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

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

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

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

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

Notes: Rack power bringing 1.25A (1250mA) on both the +12V and -12V rails. There is a 5V rail, but it pulls from the +12V rail, up to 750mA. So only use the +5V rail if you have to.

Comes with 12-position flying bus cable and wall power supply. The wall power supply is the same unit as After Later Audio use on their cases, so there's plenty of headroom and you don't have to worry about memorizing which amperage is for which.

This should be roughly enough for 1 rows of modules in a 104hp case. If you need power for 2 rows, check out The Force module.

Notes: Lush analogue EQ switchable between tilt and Baxandall high-shelf configurations.

Perform a variety of mixing and sound design duties ranging from subtle brightness and clarity adjustments to low-end rumble removal, boosted low-pass filtering and sweep EQ.

In the default tilt mode, turning the control knob clockwise simultaneously boosts treble and cuts bass. Turning anti-clockwise boosts bass and cuts treble. These boosts and cuts are pivoted around the mid-range. With the control knob at 12 o'clock the frequency response is neutral.

With Baxandall high-shelf mode enabled, turning the control knob clockwise past 12 o'clock introduces and gentle high-shelf EQ weighted around the upper mid-range. Turning the control knob anti-clockwise results in a wide high-shelf cut with subtle bass and mid-range adjustments.

Patching the channels in series allows for radical sound shaping and band-pass responses. Each channel provides up to +/- 8db of low and high-frequency gain control, summing into a low noise output stage. Hot input signals over 15vpp are saturated by active Zener diode clipping.

Features

Precise voltage control of EQ tilt and shelf
Seamless switching between EQ modes
High-quality components used throughout

Specifications

Intellijel 1U format
Width 18HP
Depth 32mm
Power requirements ~60mA +12V/~58mA -12V
Control voltage range 0-8V
Impedance Input 100K / Output 1K

Notes: This versatile dual-function Eurorack module offers both a Low Pass Gate (LPG) and a Voltage-Controlled Amplifier (VCA), inspired by two iconic designs in synthesiser history.

Low Pass Gate (LPG)

The LPG is modeled after the classic Buchla design, delivering a rich, organic sound that blends amplitude control with low-pass filtering. Ideal for producing natural-sounding dynamics, the LPG responds to control voltages to create plucky, percussive tones and smooth, woody textures. Its distinctive vactrol-based architecture provides a warm and unique character, adding depth and nuance to your patches.

Voltage-Controlled Amplifier (VCA)

The VCA draws its inspiration from the legendary Minimoog, ensuring a clean, dynamic, and responsive performance. Known for its iconic smoothness and headroom, this design is perfect for traditional amplitude shaping, allowing precise control over audio signals with minimal distortion. The VCA section excels in both subtle modulation and aggressive signal sculpting, making it a versatile choice for any patch.

Power consumption: 30mA at +12V and 47mA at -12V

Depth: 27mm

6 HP

Notes: Module A-145 is a low frequency oscillator, which produces cyclical control voltages in a very wide range of frequencies.

Five waveforms are available: sawtooth, inverted sawtooth, triangle, sine and square wave. The LFO can be used as a modulation source for any number of modules - for instance modulating the pulse width or frequency of a VCO, modulation of the cut-off frequency of a VCF, or amplitude modulation with a VCA.

A three-way switch lets you select three frequency ranges, spanning from one cycle every several minutes at the lowest, to moderate audio frequency at the highest (about 4-5 kHz).

The LFO signal can also be synchronised, via the reset input.

Identical to the A-145-1, but only 4 HP wide and with additional LEDs for the square wave and the sawtooth signal.

Power consumption: 30mA at +12V and 20mA at -12V
Depth: 45mm
4 HP

Notes: Module A-119-2 is a Dual external input amplifiers with only 4HP module width. The module contains two amplifiers with separately adjustable amplification levels. Each channel is equipped with an overload display. The module can also be used for stereo signals, e.g. the stereo output of a smartphone.

Controls and displays:

Level 1/2: manual control of the amplification in the range 0 - about 45.
Overload 1/2: overload LED, begins to light up for output levels beyond about 10Vpp (+/-5V)
In 1: audio input 1 (monophonic or stereophonic, see technical details)
In 2: audio input 2 (monophonic)
Out 1/2: audio output (monophonic)

Technical Details:

For higher amplifications the two amplifiers can be daisy-chained
Different normallling options are available via the rear of the modules with jumpers.
All inputs and outputs are DC coupled. Thus the module can be used also for the amplifications of control voltages.

Power consumption: 20mA at +12V and 20mA at -12V
Depth: 30mm
4 HP

Notes: A-149-3 is the third module of the A-149-x range. In this group, this module present several functions of Don Buchla's "Source of Uncertainty 265/266" (SOU) modules that cannot be realized with existing A-100 modules. Some functions of Buchla's 265 and 266 SOU can be realized with existing A-100 modules.

Module A-149-3 is based on the homonymous "Fluctuating Random Voltages" by Buchla. Compared to the historic original, a lot of functions have been added. For example the user has access to virtually all internal signals (e.g. Noisy Triangle or S&H) and there are a lot of adjustable parameters which were fixed in the original.

For example, the frequency and noisiness of the internal triangle oscillator, the correlation of the S&H and manual or automatic frequency control of the S&H clock oscillator. The fixed internal connections of the original are wired to sockets in the A-149-3 and can be used also individually as the connections of the original are realized as normalled sockets. That way e.g. the S&H or slew unit can be used independent from the other units.

The functions in detail:

As in the original a digital noise signal is filtered in three different ways. The three "noise flavours" are available at three sockets and can be used for all kind of noise applications:

+3db (+3dB per octave, a bright noise, also called blue noise)
-3dB (-3dB per octave, a dark noise, also called red or brown noise, Allan Strange calls it "reciprocal white noise")
Flat (flat spectrum, also called pink noise)

In the original the -3dB output is used add some noise to an internal triangle oscillator with fixed frequency (~ 100 Hz) and fixed "noisiness". The result is called "noisy triangle". In the A-149-3 the frequency of the triangle oscillator and the level of the noisiness can be adjusted. The frequency is adusted by means of the Frq. control and the Range switch (~ 110Hz ... 5 seconds period in position high). In addition one can select between the -3dB and Flat output as noisiness source by means of an internal jumper. When Noisiness control is fully CCW one obtains a clean undisturbed triangle signal. With Noisiness control fully CW the result is a triangle signal with a lot of noise or randomness. The noisy triangle signal is available at the socket "N Tri" and is displayed with a dual colour LED.

The "N Tri" signal is normalled to the signal input of the subsequent Sample&Hold unit (S&H). The clock signal for the S&H is generated by an internal rectangle oscillator. This signal is normalled to the S&H clock socket and is displayed by an LED. One can select between manual and automatic control of the clock period by means of a toggle switch. In position "man." the period is controlled manually by the "Period" control. With control "Period" fully CCW one obtains the shortest period or highest frequency. Turning the control up increases the period or lowers the frequency. In position "auto" of the switch the period is controlled by the slew unit.

In this position a vactrol is used to define the frequency of the S&H clock. This vactrol is controlled in the same way as the vactrols of the slew unit, i.e. the period of the S&H clock changes simultaneously with the slew time. In the historic original only the auto mode was available. There was no manual control available.

The S&H has another special feature: the Correllation control. It's a feedback function where shares of the S&H output are fed back to the S&H signal input and mixed with the actual S&H input signal. The result is slurring the signal like a sub-audio lowpass filter, kind of a "digital slew function" because the gradation of the signal persists.

The S&H output is availabe at the corresponding socket and is displayed with a dual colour LED.

The S&H output is normalled to the signal input of the subsequent Slew Limiter unit (SL). The core of the slew limiter are two vactrols (vactrol = combination of a light emitting diode/LED and a light dependent resistor/LDR built into lightproof case). The brightness of the vactrol LEDs can be controlled manually (control "Man." of the slew unit) and by an external control voltage (socket "SL CV" with associated attenuator "CV" of the slew unit). The brightness of the vactrol LEDs is displayed at the top of the front planel. As already mentioned a third vactrol can be used to control the frequency of the S&H clock oscillator simultaneously to the slew limiter. The SL output is availabe at the corresponding socket and is displayed with a dual colour LED.

Due to the access facilities to many of the internal signals and connections it's possible to use the sub-units also for other applications. E.g. the noisy triangle signal, the S&H unit (incl. correlation) or the SL unit can be used for other signals. The S&H clock can be applied also from outside to synchronize the S&H to other signals.

If required, the internal clock signal is available at a pin header of the pc board.

Controls, Switches and Displays:

Slew Unit

Man.: manual adjustment of the slew time

CV: attenuator for the SL CV input

LED: display of the slew function (bright = short slew lime, dark = long slew time), identical to the brightmess of the vactrol LEDs

Triangle LFO

Frq.: LFO frequency, range ~ 110 Hz ... 5 seconds period

Noise: adjustment of noisiness (= perturbance of the triangle signal)

+3dB/-3dB: switch for the source of noisiness

LED: display of the noisy triangle signal, dual color LED (rot = positive / yellow = negative output voltage)

Sample&Hold (S&H)

Period: period of the internal clock signal for the S&H unit, fully CCW = shortest period or highest frequency, fully CW = longest period or lowest frequency

LED: display of the internal clock signal

Correl.: adjustment of the correllation of the S&H unit

Man./Auto: switching between manual and automatic control of the clock frequency, when auto is selected the clock frequency is controlled by the slew unit

LED: display of S&H output, dual color LED (rot = positive / yellow = negative output voltage)

Slew Limiter (SL)

LED: display of SK output, dual color LED (rot = positive / yellow = negative output voltage)

Sockets:

+3dB : filtered digital noise with +3dB per octave (output)

-3dB : filtered digital noise with -3dB per octave (output)

Flat : flat noise output

N Tri : Noisy Triangle output, about 10Vpp (-5V ... +5V)

S&H In: S&H signal input, normalled to N Tri

S&H Out : S&H signal output

SL CV: control voltage of the slew limiter unit, connected to the corresponding attenuator "CV" of the slew unit

S&H Clk: clock input of the S&H unit, normalled to the internal clock oscillator

SL In: slew limiter input, normalled to S&H Out

SL Out : slew limiter output

The arrow symbols indicate the normalling of sockets. Outputs are inverse labelled.

Technical details:

Frequency range of the triangle LFO: about 110 Hz ... 5 seconds period
Output level of the triangle LFO: ~ 10 Vss (-5 V...+5 V)
Frequency range of the internal clock oscillator: about 3 seconds ... 30Hz
Output level of the internal clock oscillator: ~ 10 Vss (0 V...+10 V)
Required input level of the S&H clock input: +5V

Depth: 45mm
8 HP

Notes: Inspire new growth in your musical garden with Bloom, a fractal sequencer capable of generating infinitely evolving melodies.

In its latest iteration, Bloom is a powerful 3-channel, 64-step CV and gate sequencer with a plethora of additional features and configurability compared to its predecessor. Apply clock-synced ratchets per step, dial in the Mutation range for random note variation, and even save and recall your Branches with your saved sequence!

Each channel now has a new output: Mod! The Mod output is a third, modulation-focused output that stays in sync with your melodic CV and rhythmic Gate outputs. Patch up dubstep-style filter madness, build sequenced amplitude or panning variations into your signal, or send a no-frills LFO that syncs perfectly with your patch!

Bloom's roots are grounded in algorithmic variation and probability. Sequences can be dynamically resized and rotated, while notes can receive ornamental musical trills or arpeggios. There are also new probabilistic controls beyond Mutate, including random step muting, ratcheting, and slewing!

Bloom's front panel now features a Reseed button, which dice-rolls a whole new sequence for you, as well as a MIDI output that sends all sequence data through a 3.5mm TRS MIDI jack!

Beyond the front panel controls, Narwhal brings even greater flexibility to Bloom. Set custom settings, use a full sequence designer interface to import sequences into your Bloom, and so much more.

Plant the seeds of your next patch with Bloom.

Notes: Super versatile granular filtering. Incoming sounds are granulated, then processed with eight contrasting filters. Hands-on and CV controls allow you to manipulate and modulate the output.

Supplier's Notes:
Sisyphus is built around a granular engine and a palette of eight original filters. Its granular system allows multiple grains to coexist within a single stereo audio stream, where they combine and interact with each other.

This filter is based on a comprehensive granular approach to sound: rather than a granular engine followed by a filter, it offers true integration of filtering into the grain-generation process. Each generated grain carries the filtering characteristics defined by the musician and will be combined with other grains according to evolving, configurable patterns.

These filters have been developed entirely from scratch in-house, without using typical filter libraries, so they each have their own unique color for you to explore!

Filters

Lowpass: Attenuates high frequencies above the cutoff frequency. 12 dB/oct slope.
Highpass: Attenuates low frequencies below the cutoff frequency. 12 dB/oct slope.
Bandpass: Lets through a band of frequencies around the cutoff frequency. 12 dB/oct slope.
Notch: Dips around the cutoff frequency while letting the rest of the spectrum pass through.
Peak: Boosts the band around the cutoff frequency while allowing the rest of the spectrum to pass without a drastic cut.
Comb: Creates a series of cancellations and resonances based on an internal delay and feedback.
Karplus (Karplus-Strong: Simulates the vibration of a string or looping resonance by combining a short delay, feedback, and damping.
Ladder: Inspired by Moog-style analogue filters, with four stages in cascade. Features a steep slope (24 dB/oct) and a distinctive resonance that can reach self-oscillation.

Filter Controls

Cutoff (Cutoff Frequency):Defines the filter's cutoff frequency or center frequency (depending on filter type), ranging from 10 Hz to 20 kHz.

Resonance: Emphasises frequencies near the cutoff frequency, from a slight bump up to the edge of self-oscillation.

Feedback: Re-injects part of the output back into the filter input.

Variations: Introduces an instability in the setting of the cutoff frequency, resonance, or feedback (depending on the selected filter), allowing for a more or less "organic" filter character.

Grain Controls: The incoming sound is continuously sampled and segmented into buffers. Each segment is analysed, filtered, and then extracted to become a grain. You can change the length of each grain, the interval between grains, the way grains follow one another, how they are arranged in relation to each other, and their density (number and influence).

Grain Length: Adjusts the length of the audio grains. The shorter the grains, the more the sound fragments into a "grained" granular texture; the longer the grains, the closer the result is to the original sound, but filtered and delayed. When multiple grains are played simultaneously, longer grains make echo effects more noticeable.

Grain Interval: Determines the time between the start of two successive grains (or the probability of automatic triggering).

Pattern: Grains are organized according to predefined, adjustable patterns. Several scenarios allow you to explore different ways grains can combine, from highly organized to more chaotic.

Density: Determines how many grains are played simultaneously and their intensity.

Variability: Sets the magnitude of the special effects specific to each pattern.

Transition: Defines the shape of the envelope applied to the grains as they link together.

Input and Output: Sisyphus works with two parallel channels that share the same settings. You can use it either in stereo mode or as two separate mono audio channels.

CV Inputs: Four CV inputs allow control of Sisyphus using other Eurorack modules. These inputs accept the standard Eurorack voltages (0 to 8 V).

The four basic parameters that can be controlled via CV are: Grain Length, Density, Cutoff, and Resonance.

However, you can configure the module differently using an external file on an SD card. In that case, any CV input can be assigned to any control, the input voltage range (from 1 to 8 V) can be set, LED brightness can be adjusted, and more.

Specifications

Width: 24 HP

Power Consumption:
+12 V: 200 mA
-12 V: 10 mA
+5 V: 0 mA

Depth: 28 mm

Carefully built in France, with all potentiometers bolted to the front panel, and shipped in a metal storage box.

Power cable and knurlies included.

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


Manis Iteritas is a Eurorack 10HP voice based on the architecture of Basimilus Iteritas, but designed to be more gritty and aggressive. It accomplishes this by producing only sawtooth waves that are manipulated, modulated, and distorted through a rethought interface. Manis is suitable for leads, bass lines, drums, darkness, detuned madness, or pure mayhem.

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


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

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

Notes: ADSR (Attack-Decay-Sustain-Release) is a module designed to generate a voltage, which acts as the envelope with the adjustable stages. This envelope, generated in response to the incoming gate signal or manually pushed button, can then be used to shape the sound amplitude via VCA, modulate filter's cutoff frequency or any other parameters expecting CV control.
It features exponential Attack, Decay and Release stages, switch to select fast/slow operation mode, push button with led indicator to manually activate the envelope.

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


The MST Low Pass Filter is a precision analog dual slope output 2 & 4 pole filter. Simultaneous -12 DB and -24 DB outputs with CV control over all parameters. Can be used as a 1V/O sine wave oscillator

Specifications:

Current draw: V+ max 23.5mA, V- max 15.5mA

Width: 6HP Depth: 3.5cm (1.75 in)

Notes: Volume 1 pot: regulates the volume for the mini jack input 1.

Volume 2 pot: regulates the volume for the mini jack input 2.

Volume 3 pot: regulates the volume for the mini jack input 3.

Send out the mixer signal before the resonant equalizer, mini jack out, to use with external effect or as mixer dry out.

Return pot: regulate the volume for the mini jack return input, to use with external effect or as a 5- input.

Resomix has one mono mini jack out.

High pass, band pass, low pass switch; selects the filter type.

High, mid, low switch; selects the filter frequency range.

Cutoff pot: regulates the cutoff frequency of the filter, the 0-10v CV input affects the cutoff frequency to obtain the CV in maximum effect keep the cutoff pot to 0.

Resonance pot: regulates the resonance level.

Gain pot: regulates the gain level at the filter input, work as general mixer gain.

Resomix works with a +/-12v 10pin modular connector.

Dimensions

8 HP
38 mm deep

Notes: Dizygote is an A-side/B-side digital oscillator with a built-in envelope generator. The A-side builds harmonies with a square waveform and frequency modulation. the b-side distorts a sine waveform with phase modulation.

Inputs:

Trig - button and gate in to trigger oscillator amplitude envelopes
Switch - button and gate in for toggling between the a and b sides
Length - knob and CV in for changing the envelope length
Mod - knob and CV in for changing the phase and fm modulation amounts
Mfreq - knob and CV in for changing the phase and fm modulation frequencies
Freq - knob for setting the oscillator frequency
V/oct - voltage per octave CV for modulating the oscillator frequency

Outputs:

Out L and out R - audio output
Env - CV envelope out

Notes: The tiny but mighty Eurorack power supply with all the bells and whistles

Micronova is a miniature power supply with a big soul. It can provide up to 18W of power for your modules and multiple units can be easily daisy chained to power larger systems.

This bundle includes:

an assembled Micronova
an assembled Micronova busboard
a Micronova front entry kit

Please note that the front entry requires assembly. It's a delightfully easy kit, but make sure you know what you're getting into!

A suitable AC-DC power adapter is required. We have adapters available for domestic customers. International customers please take a look at the manual for guidance and recommendations.

Check out the manual to get to know Micronova and all of the delightful ways you can integrate it into your case.

100 mm x 30 mm x 13 mm
15-20V, 1.5A
+12V @ 1A
-12V @ 300mA
+5V @ 500mA
Daisy chainable
Busboard included
Front entry kit included

Notes: The new ADDAC320 Servo Control is a nod to Neil Young's Whizzer, a device that was ahead of its time. This tool enabled control over amplifier pots through the use of pedals, resulting in far-reaching tonal variation. Inspired by this methodology, ADDAC's Servo Control incorporates a Servo motor into a 4 HP Eurorack module, enabling it to control any knob that doesn't have a CV input, or other gear such as guitar pedals - within certain distance constraints.

A servo is a specific type of motor that can be digitally controlled to work at precise angles. On the ADDAC320, it is controlled by a microcontroller which is able to receive an incoming CV voltage from 0 to +5v and linearly converts this voltage range to the 270 degree Servo motor range. Using a spring wire and metal couplers, the motor shaft is then attached to the target knob to be controlled, which will turn as the Servo turns.?Two other knobs, Maximum Angle and Minimum Angle, allow further control of the "sweet spot" of the target knob, establishing a smaller Servo range.

Notes: The new ADDAC220 Dual Envelope Follower + is ADDAC's latest stereo envelope follower, which can generate CV from two simultaneous envelopes, enabling the user to control any range of other instrument/module parameters. The module is an analog/digital hybrid, allowing greater precision and analysis of an incoming signal.

The level of an incoming audio signal gain can be set by using the Gain control. Then, the signal is then fully rectified and passed through an analog envelope follower with a fixed short attack and decay. The analog signal is then sent into a 12bit ADC (analog to digital converter) of an MCU (microcontroller unit), and hereafter the signal is processed digitally. Whenever the ADC detects audio clipping the Clip led will light up.

Then, the digitized signal is then passed through a Savitsky-Golay filter for noise reduction smoothing of the incoming signal, before it is slewed using the Attack and Decay controls. The MCU keeps a history of the last sampling points and detects the minimum and maximum values, which reflect the current dynamic range and maps the signal minimum and maximum amplitude to 0V and the maximum voltage detected.

This new mapped signal is then processed via the Response Curve control balacing the response like one would with a standard AD envelope with LOG/EXP control. The Envelope Gain attenuverter control goes up to x2 amplification and sets the attenuation / amplification factor of the output range, while the red LED monitors this level with precise visualization across the full output range

Notes: Crossover: enabling new processing possibilities: Commonly, audio crossovers are designed to split an audio signal into several frequency ranges so that each resulting signal is adequate for the speaker drivers they are connected to. Typically, low range is sent to the big woofers, mid range to smaller woofers and high range to the tweeters.

Introducing the ADDAC607, which enables users to split the signal into different bands. This creates many interesting processing possibilities. For example, by independently processing specific frequency ranges, one can add delay on only the high frequency range. Or, users split a signal to feed three different compressors for multi-band compression. Finally, DJs can use the Gain knob as a 'kill switch' to remove an entire frequency band, if desired.

Although ADDAC607 operates in Mono (for Stereo signals two modules can be used) there are two audio inputs, making it easy to achieve stereo to mono summing. The Mono Sum Out carries this summed signal. This is pre-gain and can also be used as a buffered Thru output.

The ADDAC607 is a great companion to the ADDAC220 Dual Envelope Follower+, since it allows extraction of dynamics from any signal in a focused frequency range. This allows it to separate the frequencies of a kick drum and a snare, for instance.

Notes: Germaniac is a discrete VCA/warmer module build around with the sound characteristic of the vintage Russian germanium transistors.

Warm things up:

That fat Analog Character: It's not question here be in the area of the "most transparent VCA ». We specifically select our transistors to add harmonics and give a rich and thick saturation.

Variable Texture Control: Choose the amount of distortion with the "Warmth" knob, providing from a very soft and subtle one to a heavily pronounced distortion. you can also CV control this warmth variation to play with.

Some Applications:

Classical VCA

CV controllable distortion

Notes: Levers is a compact dual VCA for your 1U rack. It is simple and efficient for modulating signal levels.

Notes: Bye bye is a simple but efficient analog line and phone stereo output with a header on the back to connect it to the Supamix and a led indicator showing clipping.

Notes: The Morphor LFO - Dual is a slim (6 HP) dual LFO. Each channel features analogue triangle, square, sine, saw and inverted saw outputs and a cycle reset input.

Frequency ranges:

Low: 0.005 - 1.5 Hz
Med: 1.5 - 425 Hz
High: 15 - 4250 Hz

Features

100% analogue
Dual channel
Triangle wave output
Square wave output
Sine wave output
Saw output
Inverted saw output
Cycle reset input
Low/Med/High frequency selector

Specifications

Panel width: 6 HP
Panel height: 3 U
Module depth: 25 mm
Current draw: 12 V : 22 mA | -12 V : 22 mA | +5 V : 0 mA
Dimensions: 128.5 x 30.3 x 25 mm
Weight: 71 g
Power Socket : 10-pin

Notes: ***B-STOCK: Slight surface marks ***


Module A-192-2 contains two independent CV/Gate-to-Midi/USB interfaces. For each of the two sub-units these inputs are available:

- Gate Input (min. +5V)
- CVN Input (defines the Midi note number), 1V/octave standard, range 0...+10V (i.e. 10 octaves)
- CVV Input (defines the velocity value assigned to the Midi note message), can be used alternatively for Midi volume (CC#7), range 0...+5V
- CVC Input (free assignable to any Midi control change number), range 0...+5V

For both sub-units a common CV Transpose input is available (1V/octave, range 0...+10V). The voltage applied to this input is added internally to CVN before the Midi note number is generated. It can be used e.g. to transpose two sequences simultaneously by one voltage.

How it works:

Whenever the rising edge of the Gate input is recognized a Midi note on message is generated. The note number corresponds to the sum of the voltages applied to the CVN input and the common CV Transpose Input that is present at the rising edge of the gate signal.

Notes: ***B-STOCK: Slight surface marks ***


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

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

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

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

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

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

Dimensions
6 HP
30 mm deep

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

Notes: Inspired by classic 70s analogue drum synths like the Syncussion and Syndrum, the Eurorack version of the Seven Sisters offers seven different sound modes, each with four CV-controllable parameters.

Supplier's notes:
Seven Sisters is a percussion synthesizer featuring seven voices that aims to capture the essence of late '70s instruments such as the Syncussion and Syndrum.

This module contains 7 presets, with one voice playable at a time. Each voice has four editable controls, including volume, and parameters such as decay, pitch, and filter, all of which can be controlled via CV. Each voice also includes multiple oscillators, noise generators, and filters, providing rich, complex tones beyond the capabilities of the original devices. This enables you to recreate classic sounds or craft more realistic snare, hi-hat, and cymbal effects. The result is a powerful percussion synthesizer that combines the essence of early drum synthesis with modern flexibility.

Notes: Module A-135-5 is a combination of a voltage controlled polyphonic mixer and a polyphonic suboctave generator.

Module A-135-5 is a combination of a voltage controlled polyphonic mixer and a polyphonic suboctave generator. It is made of 12 voltage-controlled amplifiers (VCAs) which are arranged in form of a 4x3 matrix. Herewith up to three four-voice polyphonic signals (e.g. the outputs of three polyphonic VCOs A-111-4) can be mixed. The level of each of the three polyphonic channels (A, B, C) with four voices each can be controlled manually or by means of an external control voltage with associated attenuators.

In addition, the module features four frequency dividers which derive the suboctaves from the four input signals of channel A. The suboctave signals are wired to the switching contacts of the sockets of channel B. As long as the sockets of channel B are not patched the suboctave signals of channel A are used as inputs for channel B. The suboctaves are symmetrical rectangle waves with half the frequency of the corresponding signal A. For example, two polyphonic VCOs A-111-4) can be used and patched to the channels A and C. Channel B then provides the suboctaves of channel A.

The switching contacts of the 12 input sockets and the four outputs are internally connected to pin headers. That way the module can be internally pre-patched to other polyphonic modules (e.g. the four inputs A to an A-111-4, the four inputs C to another A-111-4 and the outputs to the polyphonic filter A-105-4). As the switching contacts of the sockets are used for the internal pre-patching the internal patch can be overridden by using the sockets at the front panel.

Technical notes:

If required two or more modules can be cascaded when more than three polyphonic channels are required.

The max. overall amplification is less than 1 to avoid clipping (can be altered to amplification 1 by replacing resistors, but then clipping may occur)

The max. input levels without distortion are about 16Vpp (or -8V ... +8V for the processing of control signals)

The voltage range for each of the CV inputs is about 0...+5V (with corresponding attenuator control fully CW), higher control voltages (e.g. 0...+10V) can be adjusted by means of the attenuator control

The suboctave levels are about 5Vpp

The module should be used only with DC coupled VCO outputs (e.g. A-111-4, A-111-3). With AC coupled VCO outputs (e.g. A-110-1, A-110-2) a DC offset will occur at the outputs when the suboctave option is installed.

The document A135_5_INTERNAL explains the positions and functions of the internal pin headers and describes the cascading of two A-135-5

Notes: What's that I hear? You want grit and filth for your system? Tired of not having enough harmonics in your signal? Maybe all your sounds are a bit too cold and sterile?

Why not a light inside your system with the Optika VCA - two independent optical VCAs with drunken muscles and a chip on their shoulder, they can go nice and easy on your signal, or they can inject it with a hot dose of raw power that'll give you guitar-face in no time.

The vactrols? Hand made in my workshop, of course, guaranteed cruelty-free, no dolphins harmed and zero palm oil. The sound? You'll get that slewy, chewy, turn-your-triggers-into-envelopes mess that you love vactrols for, but with the utmost care taken to minimize bleed and all the other things we don't always love about vactrols.

Yes, great, you've got lots of VCAs with "clean gain on tap" and "exemplary responsiveness" and all that other stuff - please excuse me if I'm yawning with utter boredom and rolling my eyes- now, get yourself a fully analog optical VCA that'll make your hairs stand on end when you push the gain into distortion and press the vactrol into saturation.

Use it for stereo, use it for two signals, use both channels in sequence, but please let your signals go towards the light and put it to use! Don't make me beg

Notes: Identical to the OR2x4 module in full size, but shrunk to 1/3 size. It contains two logical OR functions with four inputs each; with a switch they can be linked to an 8-input mode. Useful for "summing" gate / trigger signals from different sources.

Please note: These micro modules need a carrier, like the uBASE module. They cannot be mounted directly into an AE case.

Notes: Stereo formant filter with wavefolding, saturation, and a tap-tempo LFO

Fala Versio is a stereo formant filter designed with pure musicality in mind. Rather than creating classic vowel shapes, Fala gives the sounds it shapes a vocal quality while retaining the musicality of the sound. Fala's signal chain features up to 24 bandpass filters, post-filter saturators, three allpass filters, a pre-filter wavefolder, and a suite of dynamics-control utilities. Fala makes it fun to make nice or gnarly tones, and easy to morph between them.

Fala also features a built-in clockable stereo LFO with sine or noise oscillators to modulate the filters and to bring some panning animation into your patches.

Whether you want resonant, vocal tones or uniquely modulated filth, Fala Versio is the perfect tool to take your patches to new timbral spaces.

Already own a Versio? Try Fala and all the Versio firmwares now at the Firmware Swap app for free. Overlays will be available in January 2025.

Size and power:
10 HP
+12v 125 mA
-12v 10 mA
Fala - from Portuguese falar: "to speak"

Versio - from Latin: "versatile"

"Versatile speech"

What's in the box?

Module
Power cable
Micro USB cable

Noise Engineering no longer include screws with newly packaged modules, but Bulk screws are available for purchase separately.