Synth modules

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: The MCO MK II is a highly versatile digital VCO and voice module inspired by 90s/00s digital synths shrunk into just 6HP.

It offers a broad collection of unique, high-quality synth voices, each with extensive, customizable parameters. These parameters can be directly controlled or modulated through assignable internal and external sources. Certain per-voice parameters support audio-rate modulation, including FM, sync, and DSP. Each voice also supports up to four-voice chords, external-triggered envelopes, multiple LFOs, and dual audio outputs for comprehensive desktop like synth functionality.

Voices include a multi dimensional wavetable oscillator based on the original MCO, a complex additive synthesis engine, a multi mode 'JP' type digi-synth, a lush virtual analog implementation, a fully featured vocoder, a bass synth for both kicks and sub sonic tones and finally arebirth and porting of our discontinued SID GUTs chip voice.

Each voice includes factory presets as well as the ability to store and recall user presets. All state is preserved across power cycles.

The MCO is designed to be familiar, quick and easy to use with a high resolution colour display and a rich visual user interface.

A USB-C connection allows for easy firmware updates, user wavetables upload and device config backup and restore. Axon expander modules are also supported to increase CV control options.

Notes: THE SBG-PRO supports mono, stereo, balanced, and unbalanced input and output via 6.35mm jacks with level matching controls with clipping indication. The module features both direct and voltagecontrolled equal power crossfading between wet and dry sources.

Additionally, an expression input, along with the included 'floating ring' cable and conditioned output, ensures safe, voltage-limited CV control of external devices from your modular system.

The module extends its sibling, the original S.B.G, by adding full size stereo balanced jack connections and voltage control focusing more on connectivity with not just pedals but also pro audio equipment including rack effects, 500 Series modules and mixing consoles.

Notes: Keanu is a partnership with Tim Held and Podular Modcast. At its core, Keanu is a standard 4x4 matrix mixer and VCAs on each output and switch to choose between unipolar or bipolar controls. After Later have also added modulation sources normalled into each channel. So you get some great modulation variety, but can also mix in your external sources.

Channels 1 & 2 CVs are clockable looping function generators with controls for rise/fall lengths, and equipped with end of rise/fall trigger outputs.

Channels 3 & 4 are each a "meandering" voltage source, created by 3 LFOs that are all at different frequencies. There are 3 CV inputs (total) to control their individual rates. You can also add slew to each channel individually to change the oscillators from square to triangle, and this slew also applies to external voltages sent into their channel.

Notes: Designed for Make Noise's New Universal Synthesizer System but compatible with all Eurorack modules, the Jumbled is a 6-in/6-out VCA-based signal router, designed to manipulate and reimagine control voltage signals.

Supplier's Notes:
The Jumbler music synthesiser module is a six by six channel analogue signal combiner and distributor for the New Universal Synthesizer System or any Eurorack modular synthesiser. Jumble is one of the N.U.S.S. concepts where the routings of a patch could be re-configured, or jumbled, instantly via voltage control to produce variations on a theme.

Jumbler gives you powerful two-parameter access to the rearrangement of both origins and destinations for up to six modular signals. One to six inputs are routed to one to six outputs, in an order determined by the Rotate control, and combination determined by the Radiate control. Unlike a simple switch module, Jumbler's analogue VCA-based design is specially geared for smooth transitions and hybrid signals.

Jumbler is a great module for hybrid control voltage mashing, complex waveform mixing, on-the-fly effects re-routing, gate and clock re-combinations and more. Some folks have said it is like patching a stack of 6 RxMx circuits.

Width: 10hp
Max Depth (incl. power cable): 43 mm

Power:
178mA@ +12V
92mA @ -12V

Notes: Another iconic Buchla module gets the Eurorack reissue treatment courtesy of TipTop. The 242t is the brand's unique voltage-controlled clock and trigger module, generating pulses based on a 4x12 matrix.

Supplier's Notes:
The Buchla and Tiptop Audio 242t Programmable Pulser is a reissue of the time-event-based generator from the 1970s 200 series. At its center is the Pulser, a voltage-controlled clock oscillator with a wide frequency range, extending up to audio frequencies, numerous outputs, and start/stop controls. The Pulser drives a programmable matrix with three rows of up to 12 stages: (A), (B), and (C). Stages are activated using the X/Y coordinate controls, and the total number of stages can be set using the (n) row. Clock and Reset inputs allow the 242t to sync with other devices, while the Reset input can also be used to control the number of stages with external pulses.

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: 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: Part of TipTop's exceptional series of Eurorack-format Buchla modules, the 264t provides four sample-and-hold circuits, plus a logic circuit designed to control polyphonic patches. Deceptively simple but surprisingly creative, like most Buchla modules.

Supplier's Notes:
Four independent sample-and-hold circuits, plus a specialized logic circuit for expediently implementing polyphonic patches.

Sample-and-hold's are essentially one-cell analog memories. They are useful for "remembering" the instantaneous value of a control voltage (a detected envelope, for example), for generating equally spaced steps from a constant slope input (as from a 281t envelope generator), and for converting any continuously changing voltage (a random voltage, for instance) into a series of discrete values.

The 264's sample-and-hold circuits have two operating modes: sample and track. In the sample mode, the value of the input is sampled and applied to the output whenever a pulse is received. The output remains at this value until the next pulse arrives. The track mode diers in that an input is applied to the output for the duration of the pulse. The output tracks the input until the end of the pulse and remains at a constant value until the next pulse.

To use the 264t as four independent channels set the separate/common switch to separate. A single CV can be set to all four channels by setting the operate/common to common and plug CV in the the back jack on the with right side.

The Model 264t includes a polyphonic adaptor, which performs the logic necessary to implement four-voice polyphony. Facilities are incorporated for fine tuning and f.m. modulating the oscillators; light emitters display the adaptor's operation.

Specifications:

Size: 18 HP - Depth: 45mm
Power: +12V 60mA / -12V 30mA

Notes: Simple to look at but deceptively powerful, Dreadbox's Telepathy is a full analogue synth in a small module, featuring VCO, low-pass and high-pass filters, LFO, envelopes and VCA.

Supplier's Notes:
Telepathy is a full voice analogue synthesizer module with deep modulation options due to its multi-destination LFO and Envelope. From Bass to Lead sounds, to drums and drones, Telepathy has broad and versatile sound design capabilities. It has a Full Analogue path (Typhon VCO, 4-pole low pass / 2-pole high pass filters, analogue VCA) that is digitally controlled for more precision over its parameters, resulting in a warm, present and distinct Dreadbox sound.

With lots of useful and musical features integrated into a compact size (10hp), and its skiff friendly design, Telepathy is a great addition to small or large Eurorack systems.

Features:

1x Analogue Oscillator with saw, square, -1 oct square sub and noise, plus PW control for square, level for noise and waveshape
Automatic tuning for the oscillator and fine tune
Analogue 24db Resonant Low pass filter with Oscillator FM and Noise FM and 6db High pass filter
Analogue VCA
1x LFO with Free/Key/Track/BPM/BPM Key modes, Fade in, Triangle/Saw/Ramp/Square/Random waveforms, that is mapped to various parameters
2x Envelopes, one dedicated to the VCA with Velocity control and one loopable for Low pass Filter, Pitch and PW
CV in patch that can be mapped to all the basic parameters in parallel with dedicated amount for each parameter
MIDI in/out+through
CC in/out, Program Change in/out
Multitimbral Chaining functionality via MIDI up to 8 modules 16 presets
10HP

Notes: PM DB25 MKII is an expander output for the MKII versions of the Performance Mixer and Channels.

Pre-fade and Post-fade connections are available for all channels. The DB25 has 16 outputs. All mixer channels are stereo, so one DB25 handles the main PM MKII (either pre or post), and the DB25 can handle 2x Channels (either pre or post).

Simply connect the cable to the Pre or Post headers on the back of the PM MKII or Channels MKII modules to choose pre/post.

The PM MKII has an additional header with both Aux Sends, Master Bus, and Submix Bus.

Connect a DB25 cable of your choice to the front connector and then straight to your DAW or recording interface.

For use with original WMD Performance Mixer, an adapter board can be added on. Please note that width behind panel is increased by 8mm when adapter board is added on. This may require some clever position in your case. The original Performance Mixer still only offers Pre Fader Outputs.

Notes: Modulate filter cutoffs, VCA amplitudes, and other parameters to shape your sound dynamically.

Audio & Low Frequency Oscillator

VCO Mode. Use the cycle switch to convert the function generator into a voltage-controlled oscillator for audio-rate signals.

LFO Mode. Generate low-frequency modulation signals to control parameters such as pitch, filter frequency, or amplitude.

Create vibrato, tremolo, and rhythmic modulation patterns.

Slew Limiter & Waveform Modulation

Slew Limiter. Smooth out abrupt changes in CV signals to create portamento effects or gradual transitions.

Waveform Modulation. Adjust Rise and Fall shapes to create logarithmic, linear, or exponential waveforms, adding character to your modulation.

Glide between notes, shape modulation curves for more organic sounds.

Logic Section

AND, OR. Combine signals using logic operations to create new, complex modulation sources.

Generate gate signals based on multiple inputs, create rhythmic patterns, and trigger events.
Comparator (X > Y). Compare two signals and generate a logic output when one exceeds the other.

Create gate signals from modulation sources, detect signal thresholds, and trigger events based on signal levels.

Specifications

Dimensions 24HP - 120×128,5mm
Current +12V 150mA / +5V 0mA / -12V 130mA
Input & Output Signals +/-10V
Min. time for Attack & Decay 0.5ms
Max. time for Attack & Decay 7 minutes
Impedance Input 10k - Output 10k
Materials PCB and Panel - FR4 1,6mm
Depth 40mm including connectors (Skiff friendly)

Notes: NANO modules are excited to introduce you to OCTA, the upcoming 4-channel Analog Drum module, inspired by the iconic TR-808 and redesigned with a modern twist.

OCTA delivers punchy and dynamic analogue drums, with individual outputs, mute switches, CV control over Drive, and a built-in Tilt EQ and Compressor for creative shaping. Nano stayed faithful to the original circuits, but added key controls to give each voice more range and modular versatility.

Notes: Typically creative stuff from Frap Tools, the Bagai offers analogue sample and hold, but crushing and down sampling, but its combination of six interlinked, CV-controlled sections is capable of much more.

Supplier's Notes:
bagai / ba'ga?i / s.m. [modenese dialect, from a late Latin bagagium 'baggage', formed after the late Latin baga, deriving presumably from the Anglo-Saxon bag (see ancient French bague, Provencal bagua, 'bundle'), whose root may be traced down to the Indo-European *pac, 'to tie,' from which also 'package,' 'pact'] - 'thing,' 'thingamabob.' A term used when the actual name of a thing or a person does not come to mind.

A module that is at the same time a clock burst, S&H, audio bitcrush, or fluctuating random voltage generator is indeed a bit elusive to describe in a single word. Even if one tries, some aspects will always be missing.

Why bother, then? Let's just call it "that thingamabob," or better, "that bagai."


Bagai is an analogue sample and hold, bitcrusher, and downsampler for Eurorack systems, also capable of generating clock bursts, fluctuating random voltages, and coloured noise.

It consists of six highly intertwined sections:

A clock with straight and random outputs (yellow)

An analogue noise generator with variable colour (grey)

A bipolar fluctuating random voltage generator (white) with variable rate

A sample and hold the circuit (orange) with selectable time scale, slow for modulation, or fast for audio sampling up to 48 kHz.

An 8-bit quantized version of the orange S&H circuit with variable bit depth (red)

A clock burst section (green).

By default, it outputs bipolar random voltages and triggers. The voltages are fluctuating, stepped, and quantized with selectable bit depth. The clocks are straight, randomized, or "burst."

Once you start patching, you can use it as a S&H, audio downsampler, and bitcrusher, with a sample rate of 48 kHz.

All its major parameters are voltage controllable.

It belongs to the same family as Sapel, with the following differences.

Sample and Hold with an 8-Bit Quantiser

Bagai features two stepped S&H circuits with open input (semi-normalled by default to an analogue noise source).

The quantized one has a LSB selector that defines its bit depth, from 1 to 8 bits.
Random Triggers & Clock Bursts

Besides the well-known "main," "more than," and "less than" modes, Bagai also features a clock burst circuit that creates super fast and unpredictable streams of gates that you can combine with the main clock or to any other trigger you want.

Voltage-Controllable Bitcrusher

When used with audio signals, the 8-bit quantized S&H becomes a warm bitcrusher effect with voltage-controllable bit depth!

Dynamic Downsampler

Bagai's internal clock can switch to an audio rate mode going up to 34 kHz. Patching audio signals into the S&H input will transform Bagai into an analog audio downsampler.

Open Signal Path

Lots of semi-normalled connections allow you to use Bagai in infinite ways: cross-patching has never been this fun.

Start and Stop Controls

You can control both the main clock and the clock bursts via external gates. The main clock also features a button to manually hold it.

Analogue Noise

At Bagai's core is a thermal noise generator that feeds the S&H circuit, creating random voltage streams. The noise output features a knob that changes its colour, emphasizing the high or low frequencies.

Fluctuating random voltages and Global Rate of Change

The feature that was so loved on Sapel, now bipolar and with extended range!

Clock generators: 1
Clock range: ~0.05-75 Hz / ~0.025-34 kHz
Fluctuating random voltage circuits: 1
Fluctuating random voltage type: Bipolar (extended range)
Quantized random voltage circuits: 1 Bipolar
Quantization approach: Fixed source amplitude, variable bit depth (1-8 bit)
Unquantized S&H circuits: 1
Unquantized S&H type: Bipolar
S&H source: Built in Thermal noise or any external signal
Random clocks: 1 section with Simultaneous More than, less than, and burst
Probability distribution: On the fluctuating random voltage
Burst Section: 1
Noise Sources: With tone control
Noise Generators: 1 built in thermal noise

Specifications:

Size: 12 HP
Depth: 38 mm

Current draw: 190 mA @ +12 V / 90 mA @ -12 V
Recommended warmup time: 30 min
CV input impedance: >90 KO
Clock input impedance: >100 KO (on positive pulses), ~30 KO (clamping negative pulses)
Built-in clock frequency (1): ~TBA- >70 Hz
Clock output (period): ~2 ms
Clock output (amplitude): ~10 V
Sampling glitch: filtered
Noise output level: 10 dBU RMS
Noise output tolerance: +/-3 dB

Notes: What does this do?

This is an analogue filter with a separate 3 channel mono mixer, and VCA combo. There is also an internal envelope generator with Decay. All this product needs is a VCO and a trigger signal to complete a mini voice.

The outputs on the filter are meant to be manually patched into one of the VCA audio inputs on the module to complete the mini voice. You can mix and match to create custom filter types.

The Feedback on the product 'Rez', is what makes this sound like an MS20 filter. There are diodes, used as a limiter, and also to wave shape when in self oscillation mode.

Features:

-2 audio inputs with 2 level control knobs.

-Bi-polar FM for the filter.

-Mod input with level knob for the filter.

-FCV Filter CV direct input for the filter.

All CV inputs for the Filter are 1V per octave, Exponential.

-REZ CV

-VOLT CUT output. +5v/5v output. Used to remote control another filter, with the master 'Cut' knob.

-Internal Envelope Generator, with Level Sends to VCA and Filter.

-Separate VCA circuit, with 3 channel mono mixer input.

-1 CV input for the VCA. 'VCV'.

-1 VCA output.

The filter will self oscillate into a sine wave and does track 1v per octave.

Width: 16HP

Current: +65mA,-65mA

PCB Stack: 1 Level, Skiff compatible.

Notes: Not just another clone or continuation of the 808-esque, acid-style kicks of the Mutant Bassdrum - the Mutant BD9 seeks to explore uncharted bassdrum territory by having an integrated sub-oscillator for maximal auditory obliteration.

Parametric bassdrum synthesis offers creative control of the core sound

The primary analogue VCO offers classic 909-esque sinusoidal bassdrums, but can also be switched to generate a square wave bassdrum

The PITCH of the VCO spans several octaves, from about 30Hz to 240Hz, and can be modulated with voltage control

A novel PITCH DECAY circuit allows you to adjust the duration and AMOUNT of the pitch-modulation envelope applied to the bassdrum, from short blips to exaggerated tom-like sweeps

The AMPLITUDE DECAY allows adjustment of the length of the bassdrum, from short punchy kicks to massive booms. This parameter is voltage-controlled with a snappy CV response time, allowing you to modulate the duration of your kicks per step.

The CLICK generator is responsible for the attack intensity of the BD9. A fair amount of circuitry goes into creating this subtle punch at the beginning of the kick. The level of this effect is adjustable up to a fairly dramatic extremity.

The overall timbre of the BD9 varies with the DRIVE control from warm, analogue bassdrums at low settings to speaker-shattering overdriven sounds at high settings. Output levels are modular-level signals, unlike many classic line-level percussive devices.

Still not heavy enough? Try the sub-oscillator.

A square wave sub-oscillator derived from the primary oscillator's pitch can be mixed in (manually and with voltage control) to the BD9. The effect can be subtle deepness or extreme timbre changes.

A jumper on the back of the module allows you to select between the sub-osc being a raw square wave or having some of the high frequency components removed with a lowpass filter.

At high OUTPUT DRIVE and SUB LVL combinations, the sub-oscillator can be modulated with CV to saturate the BD9 output in evolving ways.

The SUB OCT can be set to 0, -1 or -2 octaves down from the primary oscillator. A drop of 0 means that you can mix an equal-pitch square wave with a sinusoidal primary wave.

Designed for the contemporary modular synthesiser

Plenty of eurorack-compatible control voltage inputs with bipolar attenuverters allow synthesis of dynamic percussion

A practical analogue trigger circuit allows activation of the BD9 from many signal sources (anything with a positive-going edge lasting 2ms or longer). Most electronic drum pads can also directly trigger the Mutant BD9.

An accent input accepts analogue voltage control (0 to 5V will fully modulate the volume from low to high)

13HP | 30mm deep
+50mA, -50mA

Notes: The iconic clap sound of the TR-909, but with all the features we all wished the original had. Hexinverter's take on this design adds some much-needed range and depth. The clap is a highly versatile module - it is a voltage-controlled LFSR noise oscillator as well as a powerful percussion synthesis engine.

13HP
30mm deep
+75mA, -45mA
Eurorack format module

Notes: What do you get when you combine voltage controlled distortion and one of the most infamous bassdrums? Hexinverter took one of the most revered bassdrum synthesis designs of all time - the TR-808 and completely redesigned it for use in a modular analogue synthesiser.

13HP
30mm deep
+55mA, -45mA
Eurorack format module

Notes: Designed by Hexinverter, from classic electro snares to warping, alien percussion, the Mutant Snare is a radical departure from the static sounds of the TR-808.

13HP
30mm deep
+50mA, -50mA
Eurorack format module

Notes: A classic electro percussion synthesis design reborn as something completely different. Hexinverter wanted to recreate a classic hihat synthesis design as something new and exciting, so they took the super electro 808 circuit and transformed it into a powerful creative tool for modular synthesis.

13HP
30mm deep
+75mA, -45mA
Eurorack format module

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: The Morphor Sequencer - Quad Gate/CV is a versatile tool for both live Eurorack performances and songwriting. This module can be configured as a 2-, 3-, or 4-track sequencer, depending on the selected output configuration. With flexible track configurations and intuitive real-time step editing, this sequencer offers a handy approach to sequencing in modular systems being only 4 HP wide.

Whether you're controlling gates, CVs, or a combination of both, this module adapts to your creative needs with ease. Key features include up to 4 independent tracks, each capable of holding up to 16 pages containing up to 16 steps. Users can configure tracks as gate, CV, or combined gate/CV tracks, and even set up triad chords. The module supports customizable step lengths, glide times, individual track playback orders and reset behaviors making it ideal for creative sequences.

This module can operate as a standalone unit using its internal clock or be easily synchronized with an external clock source for integrated use within a larger system. The clock and reset jacks can function as both inputs or outputs, allowing flexible configuration to match your setup.

For expanded setups, multiple Morphor Sequencer modules can be daisy-chained via the bus connection on the back, ensuring that clock and reset signals are shared seamlessly across all connected modules. This makes it easy to sync multiple sequencers for complex, multi-track performances or compositions.

Specifications

Panel width: 22 HP
Panel height: 1 U
Module depth: 33 mm
Dimensions: 39.65 x 111.4 x 33 mm
Mass: 56 g
Power Socket: 16-pin

Current draw:
12 V: 95 mA
-12 V: 11 mA
+5 V: 123 mA

Notes: Chris Huggett, chief designer at EDP came up with a novel little circuit for the filter envelope of the Wasp, based around half a CD4013, half a CD4066 and half a LM3900. It was an A/R generator with looping option which would proceed through its whole cycle from only a trigger input. He further developed the circuit for the filter envelope in the Gnat to use just one knob to provide a range of attack envelopes when anti-clockwise (from 12 o'clock), and a range of release envelopes when clockwise (from 12 o'clock). 12 o'clock gives a very short symmetrical blip. As you can build two of these with a CD4013, CD4066 and LM3900, Frequency Central have provided both a two knob version and a one knob version, each has its own place.

Both envelope outputs are 0V to 5V.
All Q and not-Q outputs are 0V to 8V
Upper section cycle times: 23Hz to 20 seconds
Lower section cycle times: 8Hz to 10 seconds

Product Specifications:

Depth: 39mm
Width: 8HP
12V draw: 30mA
-12V draw: 0mA
5V draw: 0mA

Notes: Hi-hats are typically rich in complex, inharmonic frequencies that create a metallic, shimmering sound. Hi-hats rely heavily on noise components to create the "sizzle" effect. While analog circuits can generate white or colored noise using transistors or diodes, it's difficult to get the noise characteristics exactly right for hi-hats. Designing a noise source that consistently produces the correct quality and amount of noise can require fine-tuning and careful component selection. Hi-hats need a very quick attack and controlled decay to emulate the sharpness of a real cymbal. In analog circuits, achieving precise control over these fast transients is challenging.

Hatz v3 has an analog circuit including 2 types of noises; "Metals" generates stable, high-frequency square wave oscillations, which are essential for the metallic, bright tone characteristic of hi-hats. "Texture" generates a unique, digital form of noise that has a slightly "stepped" quality, adding a texture that's not as smooth as white noise but offers a desirable grit.

Independent envelopes for precise transient shaping, and a bandpass filter for frequency control contributes to a complex, high-quality hi-hat sound. This design approach provides flexibility, realism, and tonal richness that elevates the hi-hat beyond basic analog percussion.

Notes: Patterns is a 4 channe modular sequencer designed for deep flexibility and hands on performance.

Each channel supports up to 64 steps, with essential creative tools like randomisation, probability, gate length control, swing, clock divisions, and more, giving you everything you need to build evolving, dynamic rhythms.

Its 4×4 grid layout makes programming intuitive and performance friendly, letting you quickly visualize your sequences and punch in steps with ease.

But the real power of Patterns lies in its dedicated Pattern button, your instant gateway to 16 different pattern slots. Switch between them on the fly, program your custom pattern chains, or use CV to jump between patterns and create unexpected breaks, fills, and experimental grooves.

Whether you're building complex arrangements or just jamming, Patterns gives you the immediacy and depth to stay in the flow.

Notes: A really neat solution to crafting analogue kick drums, the Blast offers dedicated controls for all key parameters, plus extensive CV control. Independent positive and negative envelope outputs also allow you to modulate other signals.

Supplier's Notes
Blast module is designed to make crafting great kick drums easier. It helps you tackle the challenges of balancing low-end depth, mid-range impact, and high-frequency clarity, so you can create kicks that feel powerful and sound cohesive.

Blast focuses on the essential elements of a kick drum: delivering enough punch to stand out in the mix while maintaining a full, rich sustain. It's unique envelope offers a fast decay with a slower release for amplitude, ensuring a tight, punchy transient while preserving fullness. Additionally, the Body Control feature allows you to increase the weight of the kick, adding depth and power without overwhelming the mix.

With tools like compression, envelope shaping, and subtle distortion, Blast gives you the flexibility to shape the transient for just the right amount of impact and definition without overcomplicating the process. Whether you're aiming for a clean, punchy sound or a more versatile tone, Blast provides intuitive controls that adapt to a wide range of musical styles. It's built to help you get the sound you need, simply and effectively, without compromising on quality.

Notes: Pretzel Logic is a 4 bit to 16 step addressable analogue sequencer which outputs gates. Each of it's 16 steps can be addressed in any order for ultimate creative flexibility. It pairs nicely with Polygraf, High Towers and Akropoli; together they make a powerful combination.

It features 4 address inputs, 1, 2, 4 and 8, each of which has an associated input socket as well as a 3 position state switch which allows each address input to be held high, respond to input signals, or held low. Each input has two status LEDs. The red LED displays the signal present at the input socket, while the green LED displays the status of the address input. The combination of signals present at the input sockets, together with the positions of the state switches allows Pretzel Logic to have 16 different output states, numbered from 0 through to 15. The output state of Pretzel Logic can be ascertained by observing which of the 4 address inputs are high. So, for example:

- If no green status LEDs are on, Pretzel Logic is in output state 0

- If green status LED 4 is on, Pretzel Logic is in output state 4

- If green status LEDs 1, 2 and 4 are on, Pretzel Logic is in output state 7

- If green status LEDs 2 and 8 are on, Pretzel Logic is in output state 10

The input sockets may be addressed by various external modules, for example:

- FC Pocket Calculator, FC High Towers, or similar clock dividers with multiple outputs from other manufacturers.

- FC Polygraf or similar grid editors from other manufacturers.

- FC Little Melody, Akropoli or similar.

As Polygraf is capable of storing many user patterns which themselves are selectable by CV, multiple chained patterns are possible. Furthermore, we accept that users will discover their own unique combinations of FC and third party modules to address Pretzel Logic, always bearing in mind that at any time the status of any of the 4 input sockets may be overridden by the 4 state switches. Pretzel Logic may be latched manually via the Latch toggle switch, or externally via the Latch input. When Pretzel Logic is latched, the last output state to go high is held until Pretzel Logic is unlatched.

Notes: T-spectrum takes the concept of merging modulation sources and destinations into a single module.

T-spectrum is a spectral processor, an organic sound sculpting tool transforming drastically what passes through it.

The powerful modulation engine lets you hear frequency bands dance, smoothly or frantically. Bring life to your patches with free running or resettable custom drawn modulations.

Maximum automation recording length of 20s for each parameter.

MODE allows to change between 1/2/4/16 (max) bands

FREQ moves the filter initial frequency

SPREAD changes the bandpass filters Q peak

TILT moves the selected peaks around the spectrum.

The integrated touch lightstrip controllers can drive four parameters with looping or one-shot recording playback mode on each track with global RESET input.

Secondary distorted output.

Current draw: 150 mA (+12 V) / 20 mA (-12 V)
Width: 8 HP
Depth: 34 mm

Notes: T-generator takes the concept of merging modulation sources and destinations into a single module.

T-generator is a multi-parameter Thru-Zero FM VCO. Main outputs are a pure sine wave with its warm sounding harmonically rich wavefolder, a triangle and a morphable square oscillator.

Four independent lightstrips engines controlling four sound sculpting parameters

Bring life to your patches with free running or resettable custom drawn modulations.

Maximum automation recording length of 20s for each parameter.

V/Oct, Thru-Zero FM, PWM and FOLD modulation inputs.

Along with Pulse Width, Fold and Saw morphing, you can play with its Vibrato parameter that will generate a wide palette of effects, starting from subtle vibrato to chaotic frequency modulation.

The integrated touch lightstrip controllers can drive four parameters with looping or one-shot recording playback mode on each track with global RESET input.

Current draw: 150 mA (+12 V) / 20 mA (-12 V)
Width: 8 HP
Depth: 34 mm

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: 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: Welcome to the Rosci soundscape. Rosci is a digital VCO that generates random waveforms to create unique, rich, and full sounds. You are able to control how complex the sound is-add harmonics and have a completely unique shape generate using the generate button/trigger. BUT, it can also be tuned to output basic waveforms (sine, square, sawtooth) if you so desire.

Tunable parameters breakdown:

COMPLEXITY: Essentially a generation of unique timbre.
ROUNDNESS: Set the basic shape of your waveform. Go from from sharp to soft sound, similar to filtering.
HARMONICS: Add up to 6 harmonies to your sound. The choir's here.
FORMANTS: Accentuate certain overtones in your sound (like a voice singing "ooo", "ahh", "eee").
DETUNE: Add a classic 'detune' with a changing phase wave for extra wide sound.

How does it work?

It is a pipeline of algorithms, which generates and modifies a waveform starting from top to bottom. Rosci works on a principle of key points: the generate button generates key point location and amplitudes to be passed down the pipeline.

Tunable parameters:

Beginning with complexity, you set the number of key points (even numbers only to create a waveform). Lowest complexity sets two points, and highest complexity sets up to 20 points. The number of key points will vary with each waveform generated. From there, the roundness sets the type of interpolation of the key points, from square to sine. Adjusting the harmonics creates copies of the waveform and adds them to the original waveform at double, triple, ... up to 6x the base frequency. Formants maintains the frequency of the wave, but squishes it so there is 'empty space' in between (this is also called pulsar synthesis). Finally, detune copies the waveform and 'detunes it' by increasing the frequency ever so slightly. And there you have it: a unique Rosci soundscape :)

Technical specs:

Module Size: 3U X 6HP X 25 mm Deep.
Current Draw: 160mA@ 12V, 20mA@ -12V.

What's in the box:

1x Rosci module
1x User Manual
1x Power cable
2x Mounting screws

Notes: Beatsi is Omni-Tone's love letter to modular drums! Inspired by classic modular drum synthesis which uses the fundamental building blocks, Beatsi's timbres were created using the same methods, only digitally. Beatsi is not a sample player or a physical modeller, and it's meant to be that way.

Beatsi's interface allows for control over individual piece Timbre, Pitch, Decay, and Level. The timbres are organized into 3 kits: an orange (acoustic) kit, a blue (low-fi) kit, and a green (alien) kit. Within these kits the timbres blend smoothly into one another allowing for seamless modulation. Beatsi has two CV modulation inputs which are assignable to any and all parameters with individual attenuversion. Beatsi may be small, but it packs a serious punch.

Technical specs:

- Module Size: 3U X 8HP X 25 mm Deep.
- Current Draw: 160mA (180mA peak)@ 12V, 10mA@ -12V.

What's in the box:

1x Beatsi module
1x User Manual
1x Power cable
1x Jumper cable
4x Mounting screws

Notes: Really nice approach to sequencing from Omni-Tone. The Melodi generates 'semi-random' patterns based on tunable parameters and probabilities. Dial in combinations of scales, pitch range, tempos and so on to create unique melodies.

Supplier's Notes:
Melodi generates sequences based on the mood you set so you can create the sound you're searching for- it can be tweaked to create anything from a powerful bassline to a sparkly melody.

Ships with version 2 of firmware

Improvements: Skip, tie, length are now LIVE knobs. Added a ping-pong trend line and a blues scale.

GENERATE

1. NEW - will prompt Melodi to generate a new sequence.
2. TRIGGER IN - accepts a trigger to prompt Melodi to generate a new sequence.

CYCLE

1. ON/OFF - determines if the sequence will loop or require retriggering.
2. TRIGGER - button and jack trigger the sequence to restart at the beginning.

TUNE

* While adjusting tunable parameters, the light bar will reflect the current selection. For continuous parameters the light bar shows amount from 0-100%, for quantized parameters the light bar shows steps.
1. SKIP (continuous) - sets the probability that a note will be skipped in a sequence.
2. PLUCK (continuous) - sets the length of the gate, from short plucks to gliding between notes (portamento).
3. TIE (continuous)- sets the probability that a note gets tied to the next (effectively making the note last two clock cycles).
4. TREND (continuous) - sets whether the sequence trends upwards or downwards in pitch.
5. SCALE (quantized) - select the quantization of the notes used in the sequence. Choose from perfect notes, pentatonic scale, diatonic scale, chromatic scale and completely unquantized.
6. RANGE (continuous) - sets the range of notes from 1 to 4 octaves (unquantized)
7. LENGTH (quantized) - select the number of notes to play in a sequence (from 1-16, or infinitely generating at the max position).
8. SPEED (continuous) - sets the tempo of the internal clock, between 20 and 2000 BPM.

OUT
1. GATE - outputs the gate of the notes in the sequence.
2. PITCH - outputs the pitch (in V/OCT) of the sequence.

CLOCK

1. SELECT - Melodi will generate internal clock signal if select switch is up, and will use external clock signal when down
2. IN - connect external clock signal
3. OUT - output clock signal

Technical specs:

- Module Size: 3U X 8HP X 25 Mm Deep.
- Current Draw: 85mA @ 12V, 10mA @ -12V.

What's in the box:

- Ready to use Assembled Module
- Mounting Screws
- Power Cable
- User Manual

Notes: Expander for the 4-channel sequencer that provides CV inputs and controls for each sequencer to enable complex pattern generation, waveshaping oscillators, ratcheting sequence effects, sequence step address re-ordering, gate length control and more.

Depth (internal from panel): 27mm
-12V @ 30mA
+12V @ 63mA
+5V @ 8mA

Weight = 0.171kg not including packaging or cables

Notes: Rings is a resonator, the essential ingredient at the heart of several physical modeling synthesis techniques. The resonator transforms an external, unpitched excitation audio signal into a full-bodied pitched sound. Rings is the bar, the tube or the bunch of strings you cause to vibrate with a bursty external signal.

Any signal can be fed into the resonator, including envelope clicks, trigger signals, noise bursts, even tonal sounds. It also contains a special "polyphonic mode", where four notes can ring together at the same time. Although it is not truly polyphonic, it adds density and chordal characters to the sounds output. For those wanting the functions of Elements without the losing HP real-estate, Rings is exactly the solution.

Three families of vibrating structures are simulated by the module, with CV control over their parameters:

Strings, membranes and tubes as modelled by Elements' resonator section (modal synthesis).

Strings coupled together and vibrating in sympathy, with controllable intervals between them.

Strings with a variable amount of inharmonicity.

Rings can be configured so that each new note is played on its own virtual string, while the previously played note(s) still decay. This unique take on polyphony allows the module to play strummed chords.

Controls

Number of strings/structures (1, 2 or 4).
Synthesis model (modal, sympathetic strings, string).
Main frequency (quantized in semitones).
Structure. With the modal and string models, controls the inharmonicity of the spectrum (which directly impacts the perceived "material"). With the sympathetic strings model, controls the intervals between strings.
Brightness. Specifies the brightness and richness of the spectrum.
Damping. Controls the damping rate of the sound, from 100ms to 10s.
Position. Specifies at which point the structure is excited.

Inputs and Outputs

Frequency, structure, brightness, damping and position modulation CV inputs with attenuverter (-8V to +8V).

"Strum" trigger input to indicate when a new polyphony voice needs to be allocated. Normalized to an edge detector detecting changes on the main V/Oct input, or sharp transients on the audio input. Detection threshold at 0.6V.

1 V/Oct frequency input (-1V to +5V).

Resonator audio input, normalized to a filtered pulse/noise burst triggered by the "Strum" input (for stand-alone use). Modular level, up to 16Vpp.

Two audio outputs, splitting the signal into even/odd partials in monophonic operation, or even/odd notes in polyphonic operation.

Specifications

Module width: 14HP
Module depth: 25mm
Current draw: 120mA @ +12V, 5mA @ -12V

Notes: Turing Machine MkII is a binary sequencer, based around a 16-bit memory circuit called a shift register. It's designed as a sequencer that you can steer in one direction or another, not one that you can program precisely.

You cannot program this sequencer to play specific tunes. You cannot save sequences. You can never go back to a sequence that has changed.

To put it another way: This random looping sequencer is a module that produces clocked randomly changing control voltages. Unlike many random voltage generators, these sequences can be locked into loops that repeat according to the length control.

Specifications:

Width: 10HP
Depth: 38mm
Current draw:
+12V: 40mA
-12V: 0mA

Notes: This is a fully built module, with the latest firmware pre-installed. Comes with Rogan knobs. You can swap our panel for another manufacturer's panel!

Mutable Instruments Plaits is a multi-algorithm macro-oscillator that provides everything from FM to speech synthesis, analogue percussion emulation, wavetables, modal synthesis, granular synthesis...whoa, this module does basically everything. Expanding on Braids's strong points and eliminating its pitfalls, Emilie Gillet's Plaits is a perfect bonding of tremendous flexibility and an intuitive user interface.

Built from the ground up and sharing no code or hardware with Braids, Plaits borrows concepts from its predecessor while operating at considerably higher audio resolution and with a refined means of user interaction. For one, it dispenses with that pesky screen to offer even more tactility and immediacy. Additionally, Plaits features a dedicated CV input for the model parameter, easy access to the module's internal envelopes for modulation of vital parameters, and an integrated lowpass gate with definable filtering intensity and virtual vactrol response time.

Offering a broad survey of synthesis techniques, Plaits promises a vast sonic palette that could find a home in any modular synthesizer setup. Ideal for beginners and modular synth gurus alike, Plaits is an obvious choice for anyone who wants a lot of functionality in a small space and with a modest price tag.

Specifications

Width: 12HP
Depth: 25mm
Current draw
+12V: 50mA
-12V: 5mA

Notes: Simple but effective approach to signal routing here from Jolin Rosa. The Morpher is a four-in/four-out crossfader, scanner and switcher, allowing you to shape, route and manipulate any signal with ease.

Supplier's Notes:
ROSA is a multi-mode crossfader, scanner, and switcher that allows seamless morphing between up to four inputs and outputs. With its three operating modes (Scan, Wave, and Pass), you can easily shape and route signals to fit any patch.

A quick overview:

Scan Mode: Morph between up to four inputs with adjustable curves using the KNEE control.
Wave Mode: Independently control the four VCAs for complex dynamic changes.
Pass Mode: Route a single input (or mix multiple inputs) to up to four outputs, perfect for quadraphonic setups or parallel processing.
Infinite Analogue Potentiometer: For smooth, continuous transitions.
Global SHUT Control: CV-controlled mute for immediate silence.

Notes: The SetonixSynth SkyWave is an all-analogue voltage controlled oscillator capable of producing many different timbres and unique harmonic behaviours, thanks to an original step-based control scheme which allows the user to dial in completely different wave-shapes and levels for successive oscillator cycles.

This complex VCO uses an internal feedback loop with the clock output of the oscillator triggering a step sequencer which in turn cycles through settings at the frequency of the core oscillator, thus changing the shape and level of the waveform output on a per-cycle basis while also staying in tune and tracking pitch like a typical VCO.

Notes: The OpticTone MK2 is an improved revision of our original module, combining a 12dB multi-mode Vactrol VCF and a Vactrol VCA. This unique circuit is inspired by the distinct characteristics of Vactrols and Lowpass gates, celebrated for their fluid and natural character.

Notes: The core idea behind this module is all about control voltage. Hence all features are individually broken out to CV inputs, making the most use possible of the benefits of the digital wavetable oscillator. This means that the design is geared towards allowing hands-off control of all aspects and some concessions have been made to that effect.

Initial setup basically consists of connecting the power cable to the module and your bus. The cable has a slotted socket for correct orientation, but mind that the red stripe faces the white line on the edge of the PCB. The included screws are nylon in order to minimise rack-rash.

Tuning the module is possible by adjusting the small SMD trim potentiometer on the back. It adjusts the offset voltage that affects the centre point of the LFO oscillations. It should be close to its three o'clock position, but you can adjust it by turning the module on, reducing the output level to almost zero and turning the trim potentiometer until you find the point where the gate output led just barely turns off.

The LFO sync type is hard sync, meaning that it resets the current cycle to the beginning of the waveform. It does not control the duration of the cycles. This allows you to further shape the output to, say, three quarters of a sinewave by using external sync and adjusting the HZ knob so the duration of a cycle is just a little longer than the time between incoming sync pulses.

Colour coded nuts indicate the type of jack, with gold representing Gate/Trigger input, black is +-5v CV inputs and red jacks are outputs.

The CV inputs are scaled down to +-2.5v and added/subtracted with the knob setting, meaning that to sweep the full range of the parameter with CV, the knob should be in centre position. The inputs are clipped to the allowed range after mixing, so you can apply any eurorack voltage here.

The module's core processor is socketed, so using a simple PIC programmer and some basic Assembly knowledge you can modify its functionality to suit your needs.

The code is written by Electric Druid who supplies me the chips preprogrammed.

Fully voltage controllable Eurorack format, externally syncable, 16 waveform low frequency oscillator with built-in VCA and sample & hold.
Powered by a socketed VCLFO10 IC from Electric Druid.

Suitable for precision modulation, live performance as well as educational purposes.

Height: 3U (128.5mm)
Width: 12hp (60.6mm)
Depth from panel: 31mm
Depth total: 51mm
+12v: 80mA
-12v: 60mA

Notes: The core idea behind this module is all about control voltage. Hence all features are individually broken out to CV inputs, making the most use possible of the benefits of the digital wavetable oscillator. This means that the design is geared towards allowing hands-off control of all aspects and some concessions have been made to that effect.

Initial setup basically consists of connecting the power cable to the module and your bus. The cable has a slotted socket for correct orientation, but mind that the red stripe faces the white line on the edge of the PCB. The included screws are nylon in order to minimise rack-rash.

Tuning the module is possible by adjusting the small SMD trim potentiometer on the back. It adjusts the offset voltage that affects the centre point of the LFO oscillations. It should be close to its three o'clock position, but you can adjust it by turning the module on, reducing the output level to almost zero and turning the trim potentiometer until you find the point where the gate output led just barely turns off.

The LFO sync type is hard sync, meaning that it resets the current cycle to the beginning of the waveform. It does not control the duration of the cycles. This allows you to further shape the output to, say, three quarters of a sinewave by using external sync and adjusting the HZ knob so the duration of a cycle is just a little longer than the time between incoming sync pulses.

Colour coded nuts indicate the type of jack, with gold representing Gate/Trigger input, black is +-5v CV inputs and red jacks are outputs.

The CV inputs are scaled down to +-2.5v and added/subtracted with the knob setting, meaning that to sweep the full range of the parameter with CV, the knob should be in centre position. The inputs are clipped to the allowed range after mixing, so you can apply any eurorack voltage here.

The module's core processor is socketed, so using a simple PIC programmer and some basic Assembly knowledge you can modify its functionality to suit your needs.

The code is written by Electric Druid who supplies me the chips preprogrammed.

Fully voltage controllable Eurorack format, externally syncable, 16 waveform low frequency oscillator with built-in VCA and sample & hold.
Powered by a socketed VCLFO10 IC from Electric Druid.

Suitable for precision modulation, live performance as well as educational purposes.

Height: 3U (128.5mm)
Width: 12hp (60.6mm)
Depth from panel: 31mm
Depth total: 51mm
+12v: 80mA
-12v: 60mA

Notes: The LedPressor is a full stereo Diode-based compressor module.
Its unique core adds character and color to any signal passed through it.
The LedPressor can be used as a normal compressor with low input levels, but as the input volume increases and the "nuke" LED lights up, it enters a new territory that combines compressor and overdrive, creating a dynamic overdrive effect.

Get it pumping with the Side Chain
The module features an external sidechain input that accepts audio and CV signals. Only the sidechain signal passes through a high pass filter, which gives the user greater control over the sound shape. The audio signal itself is not affected by the filter.
Parallel compression
The module also includes a mix knob that can be controlled with a dedicated mix CV input, allowing for greater flexibility when blending dry and wet signals. Additionally, it features a momentary bypass button to easily adjust the levels of dry and wet signals.
Feed-Back Or Feed-Forward - it's your choice
The module can be configured with a feed-back or feed-forward topologies with a jumper in the back.
Reverse polarity protection
The module have proper reverse current and over current protection in its power input stage to protect the module in case it was connected the wrong way or connected to a faulty power supply.
Dimensions
Width
: 12HP
Depth
: 34mm
Current Draw
+12V
: 20mA
-12V
: 15mA

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: EXP-FX, Il Sole e la Luna (eg. The Sun and the Moon) is an expansion module for Sibilla,
aiming to let you admire the same panorama under two different glows.

Depending on the Sibilla uploaded firmware, EXP-FX can either act as an actual Sibilla expander, giving you direct control on more Sibilla's parameters, or can turn your module into a stereo pitch shifting droning effect, allowing you to process your favourite oscillator the same way Sibilla processes its internal waveforms.

Every knob but the Line Gain is CV controllable and accepts i5V while the Freeze button can be activated with external triggers.

EXP, il Sole:
Everything regarding EXP is written with golden graphics on the module faceplate.
Expand your Sibilla by adding more control on the internal AR envelope and filter resonant
frequency. With the help of this firmware, Sibilla's controls stay untouched and the following

EXP commands are added:
ATTACK: sets the duration of the envelope attack stage. This is the time it takes for
the envelope level to go from zero to the maximum level when a gate signal is
received on Sibilla's trigger input. The duration is nearly zero with the knob fully
closed, and 5 seconds when the knob is fully clockwise.
RELEASE: sets the duration of the envelope release stage. This is the time it takes
for the envelope to go from its maximum level back to 0 after the gate is released
(max length is 5 seconds).
Q: sets the peak level of Sibilla's resonant LP filter (Resonance). When fully
counterclockwise, resonant peak will be rounded and become more apparent with
higher settings, depending on the harmonics created by Rise and Fall parameters of
Sibilla.

FX, la Luna
Everything regarding FX is written with white (black panel) or black (silver panel) graphics on the module faceplate.

With configurable eurorack/line stereo inputs, this firmware turns the whole duo (FX + Sibilla) into an intricate stereo pitch shifting delay droning effect. Splits your incoming sound in two separate pitch shifted tracks whose stereophony is affected by LFOs movements, white noise, delay lines and sampled bits of audio.

When installing this firmware, Sibilla's parameters perform the same functionalities as always, but applied to the incoming input audio signals:
RISE: pitch-shifts (from low to high pitch) the incoming sound on the left channel.
FALL: pitch-shifts (from high to low pitch) the incoming sound on the right channel.

As for Sibilla, the stereophony of these pitch-shifted tracks is affected by the movement of two free running LFOs with configurable waveforms and can be altered by a resonant LPF and the addition of a white noise source.

In addition, Sibilla's sampling delay network is now open and can be directly modified by the user:
BUFFER SIZE: controls the real time sampling window length. It's nearly 100ms
when the knob is fully closed and goes up to 1s with the knob fully clockwise.
FEEDBACK: controls the amount of sampled and pitch shifted audio sent back into
the sampler.
FREEZE: manually freezes the audio buffer to the last recorded bit of audio. While
frozen, the buffer size can still be modified.
GRAINS: sets the starting position of the audio bits to be recorded into the buffer
size (this feature still needs to be activated with a double tap on Sibilla's centre
button).

A small switch on the back of the module is used to shift between Eurorack and Line input signal. When Line inputs are configured, the Line Gain knob can be used to tame the incoming audio signal.

Width: 6HP Depth: 18mm

Material: 2mm anodised brushed aluminium front panel (black and silver)

Current draw: EXP-FX doesn't draw current directly from your system but relies on Sibilla's power; for this reason, depending on the uploaded firmware, Sibilla's power consumption will change as follows:
Sibilla + EXP: +12V: 140mA; -12V: 33mA; +5V: 0mA;
Sibilla + FX: +12V: 142mA; -12V: 35mA; +5V: 0mA;

Notes: SWEnigiser Proto VCF/A

Enigiser multimode filter and VCA in 12hp. Circuit based on originalEnigiser prototype kindly loaned by Anthony Linell of Northern Electronics.

VCF
Unique configuration with 3 x 4 filter modes
2x audio input with drive
2x cutoff CV attenuverter inputs
1x cutoff CV input, tunable to 1v/oct

VCF output normalized to VCA input.

VCA
1x audio input with gritty drive, normalized from VCF output
2x CV input. CV1 knob adds offset for drone etc.
CLIP switch for old/new revision Enigiser diode setting adjusting drive character.
+12V 22mA
-12V 22mA
Skiff friendly
Includes power cable, 4 screws+ plastic washers

Available in sand blasted silver and black panel versions.

Notes: Sonora is a spectral mixing output module that aims to be the ultimate sound stage of a modular setup. A place where all your mixes meet and find a stereophonic solution for your final track thanks to its twelve fixed panning inputs that allow you to give each track its own space and importance in the stereo field.

While being a 12 inputs summing mixer, Sonora also features a LED meter, a soft clipping limiter circuit at the output stage, a headphone output section with loudness indicators and 3.5mm pro line output jacks.

Notes: Toolbox is the newest essential utility module for your modular system. It's designed to summarize and replace all those necessary small one-function modules, often overlooked due to their space and cost requirements. With a compact 12hp design, it offers a comprehensive selection of carefully curated blocks to expand and enhance the potential of every patch. The module is also specifically designed for internal interaction, allowing the combination of various basic blocks to achieve compelling outcomes, from complex rhythm creation to unusual sound shaper. Every system needs a Toolbox!

Since VCAs are always not enough, the first two blocks on the top row consist of two linear and very fast VCAs, which are also great for AM modulation. They are arranged from left to right: input (DC coupled), control voltage input (ranging from 0 to 8V), and output. The two inputs and control voltages are normalized from left to right, facilitating easy stereo operation. These VCAs, designed primarily for voltage attenuation, are versatile tools that excel in scenarios requiring linear response. With audio, their true strengths shine when applied to amplitude modulation (AM) scenarios, where the benefits of linear control become quite significant. Although they are optimized for AM and voltage control, using exponential envelopes with these VCAs can transform them into two highly effective and fast VCAs for audio applications.

The threshold CV (0-8V) is crucial for the functionality of the blocks labeled with an asterisk (*): AND/OR gates, sequential switches, and flip-flops. By default, the threshold for each block (the voltage that must be reached at every input for the circuit to operate) is set very low, allowing almost any positive signal to be used. By increasing the threshold with an external voltage, you will change the point at which the circuits marked with the * begin to operate. This may seem a little tricky at first, but once you master all the functionality of the Toolbox, the Threshold CV rarely found in other Eurorack modules will open up many more possibilities!

Still composed of two identical parts, the second and third rows contain two blocks of two-channel summing (A & B). This region offers many ways to combine two signals. From left to right, input A, B, SUM out inverted SUM out, and two Boolean operators: AND/OR While any input signal can be used here, the first two outputs are primarily intended for audio sources. In contrast, the Boolean outputs are more suitable for summing gates and logic signals. This setup also allows for the use of both logic and analog signals together; don't hesitate to experiment with Boolean operators using analog or audio signals.For example, connecting two different LFOs to the input of the summing section can create many gate rhythms from the two Boolean outputs by varying the threshold with external voltages.

Summing mixers/Mult Out: This section consists of two 3-input summing mixers connected in series: the output of the upper mixer is routed to the first input of the lower mixer, allowing you to combine a total of five signals with two outputs available. To break this connection, insert a patch cable into the first input of the lower mixer. This action separates the two sections, enabling you to sum two sets of three signals each. Additionally, the lower section includes a multed output by default.

A bidirectional sequential switch is located at the center of the module and labeled with three "I/O" tags. This often overlooked component allows for a wide range of functions, from the most practical to the most creative. When a voltage exceeding the threshold level is applied to the * input, the switch connects the upper left jack to the lower right one. If the voltage is below the threshold, the lower left jack is connected instead. Being bidirectional, each I/O can function as both an input and an output, enabling a 2:1 or 1:2 configuration. Try using the switch at audio rate; this can function as a versatile oscillator waveform shaper. Think of something other than this block as a simple channel switcher!

On the right side of the sequential switch, we have a more classic block: the flip-flop. This block outputs a square wave at half the frequency of any signal applied to the input, whether audio or gate. Two flip-flops are available, which can be used individually or normalized in series. This block is handy for creating sub-octaves of square format from any sound or as a clock divider.

Offset / Attenuverters: Located at the bottom are two offset and attenuverting channels.This section comprises two identical blocks that can easily attenuate, invert, and offset any input signal. Each block features an input jack, one output, and two small knobs. The first knob functions as an attenuverter, allowing you to invert and scale the signal at the same moment. The second knob, the offset, adds a static voltage of +/-0-8V to the resulting output. This functionality is crucial when seeking a more refined control over voltage or a signal. Without any signal at the input, you can use the offset knob as a manual control generator for any control voltage (CV) in your system. For example, try to change the threshold with it.

Notes: Thererec is a 6hp smart dual-function generator based on a different approach! Two modern proximity sensors have replaced all the Attack/Decay thing, and this not only saved a lot of space but also turned Thererec into a whole new thing: a fusion between THEREmin gestural expressiveness and a tape RECorder,

Thererec, indeed, can quickly capture your hand movements and translate them into complex Envelopes and LFOs, adding a lot of expressiveness to your set. Once recorded, your movements can be mangled in both time and amplitude; they can be cycled or triggered in one-shot mode, letting you create complex but synchronized control voltage streams.

A straightforward movement with immediate feedback: move your fingers, listen, and connect yourself to the environment. Your body will do the rest.

Thererec sensors will track your movements to generate a voltage flow, and the LEDs and the CV outputs will reflect those movements.