Synth modules

Notes: USB/MIDI to clock interface that allows for synchronizing clock-driven modules with the MIDI environment. It processes only the Clock, Start, Stop and Continue MIDI commands. It has several clock divider outputs, each one start, stop and reset outputs for controlling sequencers and also an interesting wait function. Input is either a 5-pin DIN socket or USB.

Notes: 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: Module A-196 contains a so-called phase locked loop (PLL). The basic PLL system is shown in the sketch at the bottom of this page. A PLL consists of three parts: voltage-controlled oscillator (VCO), phase comparator (PC), and low-pass filter (LPF). All parts are normally connected to form a closed-loop frequency-feedback system.

This is how a PLL works: The output of the internal VCO (linear CV control, rectangle output) is compared with an external signal (e.g. the rectangle output of a A-110 VCO) in the so-called phase comparator (PC). The output of the phase comparator is a digital signal (low/high/tristate) that indicates if the frequency resp. phase difference of the two input signals is negative, zero or positive. The output of the phase comparator is processed by a low pass filter (LPF) to generate a smooth voltage that is used to control the frequency of the internal VCO. The 3 units VCO, PC and LPF form a feedback loop that works like this: The control voltage (output of the LPF) increases as long as the external frequency is higher than the frequency of the internal VCO und stops increasing when both frequencies become identical. The control voltage decreases as long as the external frequency is lower than the frequency of the internal VCO und stops decreasing when both frequencies become identical.

But there are some stumbling blocks: Different types of phase comparators with advantages and disadvantages can be made. Some phase comparators e.g. even lock at harmonics, i.e. if the two frequencies to be compared are integer multiples. But for some applications this can be used to create interesting effects. The A-196 contains 3 different types of phase comparators: PC1 is a simple exclusive OR, that even locks at harmonics. PC2 is a so-called RS flipflop and PC3 a more complex digital memory network. The user can select one of the three phase comparators with a 3-position switch. When PC2 is used a LED displays the "locked" state, i.e. when the frequency of the internal VCO is identical to the external frequency.

Special attention has to be directed to the frequency of the LPF. To obtain a smooth control voltage for the VCO the frequency of the LPF has to be much smaller than the lowest frequency of the internal or external audio signal. Otherwise the frequency of the internal VCO will jitter or wobble around the correct frequency. But for special effects this frequency jitter can be used intentionally. Example: frequencies in the range 50Hz...1kHz have to be processed with the PLL. Therefore the frequency of the LPF has to be about 10Hz or even less. Such a low frequency of the LPF causes a noticeable slew of the internal VCO. When the frequency of the external signal jumps e.g. between 500Hz and 1kHz it takes about 0.1 second until the internal VCO reaches the new frequency (like portamento). So one has to find a compromise between frequency jitter and portamento. But these remarks are valid only for the "ideal" working PLL. As the A-196 is used in a musical environment the "problems" and disadvantages with jitter and slew time lead to additional musical applications like portamento effects, wobbling frequencies or harmonic locking according to the type of frequency comparator and time constant of the PLL low pass filter. Instead of the internal manually controlled low pass filter the voltage controlled slew limiter A-171 can be used to obtain voltage control of this parameter. Normal audio filters (e.g. A-120, A-121) cannot be used for this job as the minimum frequency is to high (down to a few Hz or even less necessary) and the signal has to be DC coupled due to the low frequencies. Audio filters are normally AC coupled.

Another very important application of a PLL is frequency multiplication in combination with an external frequency divider. For this the output of the PLL-VCO is processed through an external frequency divider (e.g. A-163, A-160, A-161, A-115) before it is fed to In1 of the phase comparator. In this case the frequency of the PLL-VCO will be a multiple of the master frequency. E.g. if the A-163 is used and adjusted to dividing factor 5 the frequency of the PLL-VCO will be 5 times the frequency of the master VCO. Consequently, frequency division (A-163) leads to frequency multiplication with the PLL circuit. In combination with the PLL low pass frequency several effects can be realized (frequency multiplication with portamento or wobbling). The frequency multiplication can even be used to drive a graphic VCO. If your graphic VCO e.g. has 8 steps (e.g. A-155) and you use a frequency divider with factor 8 in the PLL feedback the output of the graphic VCO has the same frequency as the master VCO. Another application is the generation of pseudo-harmonics (not real harmonics as only rectangle waves are available) or clock generation for switched-capacitor filters.

Notes: Module A-197-3 is a control unit for RGB LED stripes. The LED stripe is glued e.g. to the inner edges of the cases A-100P6/P9/PMS6/PMS9/PMS12 to illuminate the modules and patching statically or dynamically. Especially during live events the dynamic illumination in sync with the sound is an eye-catcher. Each colour (red, green, blue) has available a manual control for the background brightness and a CV input with attenuator that enables the dynamic brightness controlled by other control voltages of the modular system. For example three envelopes can be used which also control the loudness or filtering of sound processing modules. But even other control applications are possible, e.g. LFO, random voltages, clock/gate/trigger signals, sequencer, Midi-to-CV.

Notes: Module A-199 is a spring reverb module. The reverb effect is electronically simulated by means of 3 spiral springs. Spring reverb systems have a very characteristic sound that is based on the (insufficient) mechanical properties of the springs like signal delays, audio resonances, limited frequency range, acoustic feedback behaviour, sensitivity to mechanical shocks and others.

The 3-spring system used in the A-199 ensures a "dense" reverb because of the different properties of the three springs.

The A-199 implies some special features that are not self-evident for spring reverb units:

The reverb signal can be fed back to the input using the Feedback control. Even self-oscillation of the springs similar to the self-oscillation of filters is available. The feedback loop can lead even via external modules like VCA, VCF, phaser, frequency shifter, vocoder, distortion/waveshaper, ring modulator and others. In this case the reverb output of the A-199 is connected to the input of the external module(s) and the output of the external module(s) is fed back to the Ext. Feedback In socket of the A-199. This socket contains a switch that interrupts the internal feedback loop as soon as a plug is inserted.

Another feature is the Emphasis control. This enables the adjustment of the accentuation of middle frequencies (around ~ 2kHz).

With the Mix control the relation between original and reverb signal appearing at the mix output is adjusted.

Using all these features very extreme and unusual effects can be generated with the A-199.

Notes: The Dystopia is ideal for complex patches where sound can be used to thicken the sound or filter out frequencies. It features a noise generator which can provide white, white to pink, white to blue, scatter, digital, pitch types of noise. The digital noise is brilliant as it can be used as a random gate generator. The bit crusher stage can range from one second up to 8kHz - meaning you can obtain really thick distortions - ideal for a range of styles of music. You can reference all the signals through the four LEDs too - which help you determine the level at which the module is pumping out the noise sources.

Noise Generator (white, white to pink, white to blue, scatter, digital, pitch)
Bit Crusher with range from 1sec up to 8kHz
Digital Noise can also be used as a Random Gate Generator
Dual Filter (parallel) 12dB Low Pass and High Pass Filter
When you insert a signal to the External In, the Internal Noise generator is cancelled and the External Signal is in process
LED indicator for all controls to illustrate the current CV Sum

56 mA +12V
67 mA -12V
35 mm deep
10HP

Notes: The compact and complete VCA. Filtering and mixing rolled into one powerful unit. The Dreadbox Eudemonia Filter is an analog wave generator processor. It provides accurate mixing capabilities and features a dual filter in series. The filters are a 24dB resonant Low Pass Filter and an 18dB non-resonant High Pass Filter - these allow you to shape your sound before sending to your output. In order to keep things in line, the exponential VCA has a peak indicator to help you reference your levels.

Power Consumption: 61mA @ +12V , 69mA @ -12V
61 mA +12V
69 mA -12V
35 mm deep
10HP

Notes: Incredible sounding VCO module that helps you get incredibly rich signals out of your synthesizer. The Dreadbox Hysteria VCO features a huge frequency range of 16hZ to 32kHz. This gives you a lot of functional pitch to work with, allowing you to explore the sounds capable from this module.

The sounds themselves rest on a variable waveform selector - meaning you can scroll through the waveforms and blend them together. This can even be CV controlled, so you can obtain an evolving sound that changes over time. The modules in the Chromatic series give you a great starting point in the world of modular synths and are a must-have for beginners and professionals alike.

Power Consumption: 114mA @ +12V , 46mA @ -12V
10HP
35 mm deep

Notes: Enter a galaxy of rich and vibrant delays. The Dreadbox Nostalgia 3 Stage Delay is a superb effect module that can give you amazing results in moments. Delay is a true staple in the effects world and it can take your modular music to the next level via just a few cables.

The Dreadbox Nostalgia 3 Stage Delay is ideal for a range of modular music styles, from ambient to acid house. This 10HP module fits snugly in your system and has enough CV control to keep even the most avid patcher satisfied.

117 mA +12V
25 mA -12V
35 mm deep
10HP

Notes: Psychosis is a high quality true stereo - 6 channel mixer eurorack module, that has the unique ability to pan an input signal, from left to right with a single control.

It is equipped with a set of 4 stereo effects - reverb, delay, chorus and flanger, all trimmed for the modular levels.

This module is an easy gateway into mixing multiple signals as the last part in your signal chain.

10HP.

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

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: Versatile and valuable. The amazing Dreadbox Utopia is a CV audio and manipulator. It allows you to control a wide range of different properties inside your Eurorack system. These include four attenuverters, an offset generator, and a four to three mixer. This selection of tools give you the means to take control of your signals and bend them fully to your liking. Helping you put the finishing touches to your synth patch.

40 mA +12V
27 mA -12V
23 mm deep
10HP

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

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

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

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

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

Notes: The Wave Transformer is a complex single oscillator with 7 audio outputs. Its method of wave shaping differs from other complex oscillators in that it is not based upon classic wave folding such as is common in West Coast synthesis, or filtration such as is common in East Coast synthesis.

This analogue, vintage-voiced, voltage-controlled oscillator features over 8 octaves of accurate pitch tracking. Its 7 simultaneous wave outputs include a unique Complex output. This strange and novel output varies between a simple waveform (triangle, unless you patch a signal into the Shape Insert jack) and a complex transformation of the harmonic structure of the original waveform. It contains a unique mixture of the fundamental frequency, odd order harmonics, even order harmonics and subharmonics. The Sub Octave panel control will determine whether the sub harmonics are derived from one octave down, two octaves down, or are muted altogether. It will vary from a simple waveform to a silhouette of your cat watching you as you react to a "present" that it left for you on the counter. No, seriously.

The module's Transform control morphs from a basic waveform through many strange iterations into a complex, gnarled mass of audio mutations at the Complex output using an asymmetrical multi differential audio transmutation circuit. You can yield countless variations on these permutations by combining this novel circuit with Hard Sync, Soft Sync, Linear FM and Exponential FM.

Additionally, you can mute the source waveform to use the circuit as a harmonic gate/VCA, rendering the Wave Transformer a voice unto itself.

If that is not enough, there is a Shape Insert that allows you to transform external oscillations and modular-level audio sources.

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


The Wave Transformer is a complex single oscillator with 7 audio outputs. Its method of wave shaping differs from other complex oscillators in that it is not based upon classic wave folding such as is common in West Coast synthesis, or filtration such as is common in East Coast synthesis.

This analogue, vintage-voiced, voltage-controlled oscillator features over 8 octaves of accurate pitch tracking. Its 7 simultaneous wave outputs include a unique Complex output. This strange and novel output varies between a simple waveform (triangle, unless you patch a signal into the Shape Insert jack) and a complex transformation of the harmonic structure of the original waveform. It contains a unique mixture of the fundamental frequency, odd order harmonics, even order harmonics and subharmonics. The Sub Octave panel control will determine whether the sub harmonics are derived from one octave down, two octaves down, or are muted altogether. It will vary from a simple waveform to a silhouette of your cat watching you as you react to a "present" that it left for you on the counter. No, seriously.

The module's Transform control morphs from a basic waveform through many strange iterations into a complex, gnarled mass of audio mutations at the Complex output using an asymmetrical multi differential audio transmutation circuit. You can yield countless variations on these permutations by combining this novel circuit with Hard Sync, Soft Sync, Linear FM and Exponential FM.

Additionally, you can mute the source waveform to use the circuit as a harmonic gate/VCA, rendering the Wave Transformer a voice unto itself.

If that is not enough, there is a Shape Insert that allows you to transform external oscillations and modular-level audio sources.

Notes: 4-input VCA stereo mixer w/ pan, stereo out, metering

50mm deep

Notes: VCA 3X is a simple yet great solution for synth users looking to add more VCAs to their setup in a single and compact module. This module features 3 VCAs with individual Signal and CV inputs and outputs.

Notes: 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
Available in 3U / 6HP version

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

Dimensions
22 HP
26mm deep with power ribbon cable connected

Notes: 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
Available in 3U / 6HP version

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

Dimensions:
22 HP
26mm deep with power ribbon cable connected

Notes: Ultra slim envelope generator with looping, ASR and AD modes

CV control over fall (decay / release)
Continuously variable shape over both slopes without stretching the slope's duration in time.
Low aliasing CV generation, 224 kHz sample rate.
1 v/oct input, bipolar and unipolar outputs, end of cycle output.
Audio rate oscillation in cycle mode allows you to utilize it as an oscillator.
Polarizer knob with additional VCA input scales the envelope and inverts it when CV goes to negative voltages, allowing for compact sidechain envelope solution without the need for external mixers / inverts / offset generators.
Slew limiter, S&H, T&H processing for external CV sources

Power consumption:
60 mA +12V
15 mA -12V
0 mA 5V

Dimensions:
4 HP
26 mm deep with power ribbon cable connected

Notes: Endorphin.es add to the ranks of clever 1U format modules with this take on their Cockpit four-channel stereo mixer. Simple design including a CV/trig input for sidechain compression/ducking.

Supplier's Notes:
Endorphin.es Cockpit² is a 4-channel stereo mixer with side-chain ducking.

Key facts:

Increased headroom
Improved sound quality
the LEDs are blue/red instead of red/green (Daltonic friendly)
No TRRS jacks anymore
New knobs on the black module version
Power consumption: 37mA at +12 V and 23mA at -12 V

Depth: 41mm

HP : 24

Notes: Endorphin.es Cockpit² is a 4-channel stereo mixer with side-chain ducking.

Key facts:

Increased headroom
Improved sound quality
The LEDs are blue/red instead of red/green (Daltonic friendly)
No TRRS jacks anymore
New aluminium knobs on the black module version

Power consumption:
240 mA +12V
75 mA -12V
0 mA 5V

Dimensions:
6 HP
38 mm deep

Notes: 4 stereo channel performance mixer with sidechain ducking

On-board compressor with external sidechain control voltage option to add proper dynamics to your mix

Stereo output for speakerphones or headphones with enough current to drive a wide range of headphones

available in 1U / 24HP version

Version 2 update (from original Cockpit):

Increased headroom

Improved sound quality

Daltonic friendly - the LEDs are blue/red instead of red/green

No TRRS jacks anymore

Available in Black and Classic Gold

New aluminum knobs on the black module version

Power consumption:
240 mA +12V
75 mA -12V
0 mA 5V

Dimensions:
6 HP
38 mm deep

Notes: The Furthrrrr Generator has a main oscillator (carrier) with an extensive and fully voltage controllable wave multiplier and a modulation oscillator (modulator) that can cross-modulate the carrier. Each oscillator has hard and soft sync and also features an integrated tuner: if both LEDs are lit the VCO is at note A. Left LED is lit at note Ab and right LED at A#. Frequency potentiometers are ten-turn models and thus allow for easy tuning. Frequency range of the VCOs is 10Hz-10kHz (and much lower in modulator's LFO mode). Both VCOs feature 2 frequency CV inputs (1x with bipolar attenuator, 1x with 1V/octave), one FM input (jumper selectable between linear and exponential FM) as well as separate input for hard and soft sync. The voltage characteristic can be selected between 1V/octave and 1.2V/octave (Buchla norm).

The main oscillator (carrier) outputs the waveforms sine, saw, square and white noise. The two outputs marked with the magic eye are outputs of the "harmonic section" that generates very complex sounds by the wave multiplier and its parameters symmetry, order and Furthrrrr in the module's right-hand section. Symmetry lowers the level of even harmonics and amplifies the odd harmonics (this affects the pulse wave's width as well). Order adds saturation to the high order harmonics and resembles a low pass filter. Furthrrrr alters the level of harmonics set by the other parameters and produces very interesting, partly brute sounds with lots of harmonics by clipping and folding the wave. All three parameters can be voltage controlled. The carrier oscillator also has inputs for hard and soft sync, the sync-switch can synch directly to the modulator.

The modulation oscillator (modulator) has three wave forms with direct outputs: sine, saw and square. Using the internal modulation via the "mood section" the waveform is selected with a button; an additional staircase wave form is available here, but it can be overridden by inserting a signal into the external input socket. A switch activates the LFO mode.

The Mood section is responsible for the internal modulation of the carrier by the modulator. Switches determine the modulation destination(s) that can be activated simultaneously. These are the Furthrrrr parameter of the harmonic section, the amplitude and the frequency of the carrier oscillator. The "balanced" switch activates the ring modulation between both VCOs. intensity of modulation is controlled by the "mood index" potentiometer and the according CV input with bipolar attenuator.

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


The Furthrrrr Generator has a main oscillator (carrier) with an extensive and fully voltage controllable wave multiplier and a modulation oscillator (modulator) that can cross-modulate the carrier. Each oscillator has hard and soft sync and also features an integrated tuner: if both LEDs are lit the VCO is at note A. Left LED is lit at note Ab and right LED at A#. Frequency potentiometers are ten-turn models and thus allow for easy tuning. Frequency range of the VCOs is 10Hz-10kHz (and much lower in modulator's LFO mode). Both VCOs feature 2 frequency CV inputs (1x with bipolar attenuator, 1x with 1V/octave), one FM input (jumper selectable between linear and exponential FM) as well as separate input for hard and soft sync. The voltage characteristic can be selected between 1V/octave and 1.2V/octave (Buchla norm).

The main oscillator (carrier) outputs the waveforms sine, saw, square and white noise. The two outputs marked with the magic eye are outputs of the "harmonic section" that generates very complex sounds by the wave multiplier and its parameters symmetry, order and Furthrrrr in the module's right-hand section. Symmetry lowers the level of even harmonics and amplifies the odd harmonics (this affects the pulse wave's width as well). Order adds saturation to the high order harmonics and resembles a low pass filter. Furthrrrr alters the level of harmonics set by the other parameters and produces very interesting, partly brute sounds with lots of harmonics by clipping and folding the wave. All three parameters can be voltage controlled. The carrier oscillator also has inputs for hard and soft sync, the sync-switch can synch directly to the modulator.

The modulation oscillator (modulator) has three wave forms with direct outputs: sine, saw and square. Using the internal modulation via the "mood section" the waveform is selected with a button; an additional staircase wave form is available here, but it can be overridden by inserting a signal into the external input socket. A switch activates the LFO mode.

The Mood section is responsible for the internal modulation of the carrier by the modulator. Switches determine the modulation destination(s) that can be activated simultaneously. These are the Furthrrrr parameter of the harmonic section, the amplitude and the frequency of the carrier oscillator. The "balanced" switch activates the ring modulation between both VCOs. intensity of modulation is controlled by the "mood index" potentiometer and the according CV input with bipolar attenuator.

Notes: Collabing with YouTube sensation Andrew Huang, Endorphin.es offer up this impressive multipurpose processor module. Building blocks of stereo filtering, compression, reverb and more offer huge creative potential.

Supplier's Notes:
In collaboration with Andrew Huang, based on his modern music production techniques, Endorphin.es developed a creative audio processor with multiple blocks that can be moved around in order to achieve different flavours for sound design.

Processing unit without fixed structure: intuitively create astonishing and ephemeral timbres, from atmospheric rumbles to heavy or distorted textures.
Creative stereo effect processor with delay, reverb, filter and distortion with quickly explorable routing chain with single button press.
New generation ARM Cortex - M7 processor with 96 kHz 32 bit internal processing.
Lush hall and whooshing reverse reverbs with audio freeze and pre-delay.
Sidechain audio ducking envelope available both internally and externally with additional one knob single band compressor.
Tap delay with maximum delay time up to 2.5 seconds, external clock input with onboard clock divider and 1v/oct time control.
8x oversampled distortion algorithm.
Pre- and post - VCA, tone and volume controls with extra gain.

Power consumption:
135 mA +12V
35 mA -12V
0 mA 5V

Dimensions:
16 HP
26 mm deep with power ribbon cable connected.

Notes: Collabing with YouTube sensation Andrew Huang, Endorphin.es offer up this impressive multipurpose processor module. Building blocks of stereo filtering, compression, reverb and more offer huge creative potential.

Supplier's Notes:
In collaboration with Andrew Huang, based on his modern music production techniques, Endorphin.es developed a creative audio processor with multiple blocks that can be moved around in order to achieve different flavours for sound design.

Processing unit without fixed structure: intuitively create astonishing and ephemeral timbres, from atmospheric rumbles to heavy or distorted textures.
Creative stereo effect processor with delay, reverb, filter and distortion with quickly explorable routing chain with single button press.
New generation ARM Cortex - M7 processor with 96 kHz 32 bit internal processing.
Lush hall and whooshing reverse reverbs with audio freeze and pre-delay.
Sidechain audio ducking envelope available both internally and externally with additional one knob single band compressor.
Tap delay with maximum delay time up to 2.5 seconds, external clock input with onboard clock divider and 1v/oct time control.
8x oversampled distortion algorithm.
Pre- and post - VCA, tone and volume controls with extra gain.

Power consumption
135 mA +12V
35 mA -12V
0 mA 5V

Dimensions
16 HP
26 mm deep with power ribbon cable connected.

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


Collabing with YouTube sensation Andrew Huang, Endorphin.es offer up this impressive multipurpose processor module. Building blocks of stereo filtering, compression, reverb and more offer huge creative potential.

Supplier's Notes:
In collaboration with Andrew Huang, based on his modern music production techniques, Endorphin.es developed a creative audio processor with multiple blocks that can be moved around in order to achieve different flavours for sound design.

Processing unit without fixed structure: intuitively create astonishing and ephemeral timbres, from atmospheric rumbles to heavy or distorted textures.
Creative stereo effect processor with delay, reverb, filter and distortion with quickly explorable routing chain with single button press.
New generation ARM Cortex - M7 processor with 96 kHz 32 bit internal processing.
Lush hall and whooshing reverse reverbs with audio freeze and pre-delay.
Sidechain audio ducking envelope available both internally and externally with additional one knob single band compressor.
Tap delay with maximum delay time up to 2.5 seconds, external clock input with onboard clock divider and 1v/oct time control.
8x oversampled distortion algorithm.
Pre- and post - VCA, tone and volume controls with extra gain.

Power consumption
135 mA +12V
35 mA -12V
0 mA 5V

Dimensions
16 HP
26 mm deep with power ribbon cable connected.

Notes: 1U version of the excellent Golden Master, a surprisingly creative little output module which combines radio-style multi-band compression with brickwall limiting and mid-side stereo processing.

Supplier's Notes:
Golden Master is a multiband processor module in Eurorack format. Inspired from the studio mastering and radio loudness units from the 90's, this tool is a game changer for everyone who performs live with a Eurorack synthesizer.

The whole magic of Eurorack lies in its raw sound and simple analog mixes - processing through the Golden Master brings instant punch and sound pressure, as well as controlling the overall volume.

Features:

instantly improve your raw Eurorack mixes to sound balanced and powerful on stage or wherever you are
96 kHz 16 bit digital audio stereo processing
3-band compressor with intuitive adjustment and brickwall limiter
mid/side stereo field processing
Power consumption: 125mA at +12 V and 12mA at -12 V

Depth: 42mm

HP : 22

Notes: Unusual output and mastering module, inspired by studio and radio mastering tools but fitting into just 6hp. Includes multi-band compression, mid/side stereo processing and brickwall limiting.

Supplier's Notes:
Golden Master is a multiband processor module in Eurorack format. Inspired from the studio mastering and radio loudness units from the 90's, this tool is a game changer for everyone who performs live with a Eurorack synthesizer.

The whole magic of Eurorack lies in its raw sound and simple analog mixes - processing through the Golden Master brings instant punch and sound pressure, as well as controlling the overall volume.

Power consumption: 135mA at +12V and 25mA at -12V
Depth: 30 mm (with ribbon cable connected)
HP : 6

Notes: The power module from Endorphin.es is a module for the power supply of smaller modular systems such as skiff cases up to 104 TE width. The module consumes DC power between 12 and 20 volts from an external power supply unit. Voltages of up to +1000 mA and -700 mA are output, also depending on how strong the connected power supply is. In addition, there are two passive multiples.

Notes: Versatile stereo digital filter based on Endorphin's Grand Terminal module. CV-controlled cutoff, resonance and separate high-pass filter. Simple but effective.

Supplier notes:
The Squawk Dirty To Me is a stereo filter with voltage controlled resonance. It features eight filter modes and zero-delay feedback.

- Simple and effective 6hp stereo VCF
- 8 filter modes available with meta CV scanning, famous zero-delay feedback Grand Terminal filters
- Additional hi-pass filter in series quickly cuts the boomy low end

Notes: Two Of Cups - include samples in your live set. Two of them at once with a wide variety of CV-able features. Simply load one of 8 (!) banks each containing up to 24 samples for each of the two voices and off you go (unlock this feature with firmware 1.1!). Needless to say you can change the samples under CV and if needed - you can set up the trigger delay for each voice because that boy plays its sample so instantly and sample accurate with the with lightning speed. Breathe life and fresh sounds into your setup with a small footprint (6 HP) you would normally need to carry around a gazillion of gear to reproduce the sonic capabilities. Alternatively, use it the boring way and simply play drum one-shots off it.

2 voice intuitive sample player each containing 24 samples and organized in 8 banks

Zero-latency sample playback - directly from micro SD card

Factory sound-bank by Julia Bondar

On-board envelope generator decay control, pitch control with 1V/Oct input and sample selection control with meta cv input

Arbitrary sample rate: 8, 16 and 24 bit samples with 12 bit output bitrate

Power consumption:

125 mA +12V
20 mA -12V
0 mA 5V

Dimensions:

6 HP
30 mm deep

Notes: Unique synth voice based around a digital triangle wave oscillator with percussive element, dual filters, envelope, LFO, spring reverb and touch pads for performance.

Supplier's Notes:
The Quandrantid Swarm module is a versatile and unique synth voice for sound designers and musicians looking to explore exquisite and unfamiliar timbres that range from subtle to outrageous, nebulous to shimmering.

It features a digital synthesizer voice with a percussive element, an analog 2-pole filter, an LFO with eight waveforms, and a spring reverb. The 8 touch keys can be used as a mono keyboard, polyphonic keyboard or an eight step sequencer. The synth interfaces with other instruments via MIDI, and CV/Trig inputs. The semi-modular design allows you to get hands on immediately, but you can and should use patch cables to fully explore the potential of this instrument.

Power consumption: 170mA at +12 V and 70mA at -12 V

HP : 40

Notes: Great value from this versatile percussion module, built around a noise generator and four linked envelope generators, each with its own VCA. Generate hi-hats, envelopes, shape drums or create modulation sequences.

Supplier's Notes:
Ricochet is a compact, fully analogue module featuring four interconnected decay envelopes, each with its own VCA and an integrated noise generator.

The module's design is inspired by the way skipping stones bounce on the water, creating a versatile tool for crafting percussive sounds.

The exponential envelopes are specifically designed to generate dynamic percussive tones. The unique linking function connects the end of one envelope's decay to the trigger of the next, enabling the subsequent envelope to activate once the previous one ends. This innovative feature allows you to create ratcheted envelope.

A front-panel trimmer lets you adjust the threshold for triggering subsequent envelopes, while a rear header enables connecting two Ricochet modules together, or linking the last envelope to the first. This feature transform the Ricochet to a weird sequencer where the steps length depend of the decay times.

Since Ricochet is fully analogic, trig inputs are velocity-sensitive, responding to a standard gates but also allowing attenuation to modify the envelope's velocity (you can play with the dynamic of your sound by attenuating the trigg input. Ricochet is also perfect to play with drum pads).

Each VCA features a gain control that can be pushed to achieve subtle saturation.

All envelopes and VCAs have separate outputs, but there are also mixed audio and envelope outputs. When an individual output is connected, it is removed from the mix. The decay modulation inputs are normalized between each other.

Last but not least, an analogue noise generator is normalised to the first input, so you can use ricochet on it's own to create hi hat kind of sounds

Main features:

- Fully analogue design so everything is responsive to the amplitude
- Unique linked envelopes feature
- Compact 4 envelopes 4 VCAs module
- Linkable to a second ricochet or looping back the last envelope to the first one

Some applications:

- Envelope generator
- Drum shaper
- Hi-hat
- Clap envelope shaper( with short ratcheted envelopes)
- Envelope sequencer
- Trigg delay
- Burst generator

Technical details:

- Fully Analogue design
- 14hp
- Skiff friendly
- Reverse power protection

Notes: The ZONE B.F. module is an element of the Capsule TITAN. Zone basses frequences stands for low frequency zone. This module is composed of 2 LFOs, both LFOs have 16 sync-able waveforms.

Speed : speed of the LFO, range from 0.1 Hz to +/-200 Hz
Wave (LFO 1 & 2) : 16 Syncable waveforms

The ZONE B.F. (black edition onwards) now features an additional mode. On the back of the PCB you will find two jumpers, marked as JP1. CV1 is LFO channel 1 and CV2 is LFO channel 2. By moving the jumper so it sits on one leg (rather than 2 as when you have received the module), the Sync input for either LFO channel now becomes LFO speed input, controllable via CV.

Tech Specs

- SYNC 1 & 2 : LFO waveform is reset when an impulse signal is received
- OUT 1 & 2 : LFO signal outputs 1 & 2
- Voltage swing is -/+5V
- LEDs display LFO activity
- Eurorack 5 HP
- Metal pot, panel mounted, screwed
- Consumption: +12V 40mA, -12V 10mA

Notes: Erica Synths Bassline is fully analogue synth voice module for ultimate basslines and leads.

It features AS3340 VCO with three waveforms, a filter inspired by Erica Synths Acidbox and unique features - transistor based suboscillator and two BBD lines that emulate VCO detune creating a sound of massive polysynth from one oscillator.

Accent provides more expression to the bassline, by adding volume and opening the VCF slightly.

Notes: Premium analogue delay from Erica's flagship Black Series range. Two bucket brigade device delay lines work simultaneously with smooth crossfading and tons of voltage control. Lovely.

Supplier's Notes:
Erica Black Series include high-end, unique functionality and superior quality modules. Only the best, highest quality components are used, all inputs and outputs are protected against undesired overvoltage. When designing Black Series, put design and usability superior. Big knobs are assigned to functions that make difference in sound. Erica Black series consist of range of modules that are needed to put together entire synth. Enjoy!

The Erica Synths Black BBD is one of kind analogue delay module. It features two BBD lines: short, 1024 stage and long, 4096 stage, that work simultaneously and you can smoothly fade between those two, thus creating distinct multitap effect.

Furthermore, an advanced BBD clock noise cancellation circuit is implemented that reduces unwanted BBD noise without filtering higher frequencies of audio signal. Most of parameters are voltage controlled, which allows to integrate the module in complex modular setups.

Time

This is delay time manual control.

Because of BBD clock suspension circuit, delay time can be pushed in extremely long regions, however in that case BBD clock noise may appear. The Time CV is added to the knob setting.

In level

This is the input attenuator switch. Select among full amplitude, half amplitude and audio off.

BBD mode

This control smoothly fades between short and long delays. Any setting in-between will result in distinct multitap delay effect.

LFO rate

Adjust the internal modulation LFO rate. The internal LFO controls delay time, and it's automatically disengaged, when an external modulation signal is connected. The LED gives visual feedback on the LFO rate.

LFO shape

Select the LFO shape. Three shapes are available - triangle, square and in-between shape - mix of triangle and square.

Input

This is the audio input of the module. This is manual Dry/Wet mix. The MIX CV is added to the knob setting.

Colour

Even though the module has BBD clock suspension circuit, the colour switch provides extra lowpass filtering of the signal. At top setting no filtering is applied, at lower settings increasing filtering is present.

Feedback

This is the delay feedback manual control. In extreme clockwise settings the module goes into self-oscillation, and by adjusting delay time and BBD mode settings, the module becomes a drone machine. The FBK CV is added to the knob setting.

CV level

This is the Time CV level attenuator. If nothing is patched into TIME CV socket, it controls the internal LFO amplitude.

WET out

This is the WET signal output of the module - use it for advanced patches.

Out

This is the main output of the module.

Time CV; FBK CV; Mix CV;
These are CV inputs for Time, Feedback and Dry/Wet mix.

SPECS:
Audio level 10Vptp
CV level (full span) -5V - +5V
Power consumption +95mA, -81mA
Module width 12HP
Module depth 35mm

Notes: Take a DJ-mixer-style combined high-pass and low-pass filter, cram it into Eurorack and you have the DJ VCF. A simple formula, but one perfected by Erica's attention to detail, with CV control and adjustable resonance.

Supplier's Notes:
As its name suggests, the Erica Synths Black DJ VCF provides sound treatment functionality typically found on DJ decks - it is fully open when the cutoff knob is set to 12:00. When turned counter-clockwise, lowpass filtering is applied and when turned clockwise, highpass filtering is applied. The filter also has a nice-sounding resonance parameter. This module provides hands-on control over the sound during the performance, as well as unconventional timbre modulations that are hard to achieve with conventional state variable filters. The Black DJ VCF is a fully analogue design and consists of two VCFs - highpass and lowpass in series and the filter management is done by complex CV routing.

CUTOFF
This is the main control of the module - manual cutoff frequency adjustment with a twist - it's fully open when the cutoff knob is set to 12:00. When turned counter-clockwise, lowpass filtering is applied and when turned clockwise, highpass filtering is initiated

AUDIO LVL
Adjust the audio signal level

RESONANCE
Adjust the resonance level manually. On settings over 1PM, the filter will start to self-oscillate. The resonance is incoming audio signal-sensitive - a signal of greater amplitude may reduce the impact of resonance on the resulting sound

CV1 LVL
This is the cuto CV attenuverter. Adjust the CV level to your taste! Notice that the cutoff CV works differently compared to conventional state variable filters - it sweeps the filter from closed lowpass through fully open to closed highpass

CV2 LVL
This is another cuto CV attenuator

CV2 IN
This is the cuto CV2 input, which is controlled by the attenuator knob

AUDIO IN
Patch your audio signal here.

OUTPUT
This is the audio output of the module.

CV1 IN
This is the cutoff CV1 input. The CV1 level is adjustable by the CV1 LEVEL attenuverter knob.

Features
Fully analogue DJ-style VCF
Manual resonance control
Cuto ff CV attenuverter and attenuator
Input and output
Protection against undesired overvoltage

Technical specifications:

Audio level: 10Vptp
CV level : -10V - +10V
Filter slope: 24dB/oct
Power consumption: +55mA, -58mA
Module width: 10HP
Module depth: 35mm

Notes: Erica Synths Black Dual VCF is a dual multimode filter with CV control over cutoff and resonance for serious modular patches.

At the core of this VCF is a highly stable, custom multimode VCF chip AS3320 (produced in Riga, btw). This module can be used as two independent VCFs with simultaneous HP, BP and LP outputs, controls can be linked to stereo application and both VCFs can be chained in series or parallel to the summing output for ultimate modulations. Bonus feature - the 16 band spectrum analyser gives you visual feedback on what happens on summing output.

Technical specifications:

Audio output amplitude: 10 Vptp
CV input (full sweep): 10 Vptp
Panel width: 18HP
Module depth: 35mm
Power consumption: 40mA@+12V, 36mA@-12V

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

SPECS:

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

LOOP/SINGLE

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

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

G. LENGTH

Set the internal gate length manually

LENGTH CV

This is the internal gate length CV input.

The CV is added to the gate length potentiometer setting

GATE

This is the GATE input

A / D / S / R

These knobs adjust envelope stage times and sustain level

TRIGGER

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

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

EG OUT

This is the envelope generator output.

Notes: Erica Synths Black Hole DSP 2, an updated version of Black Hole DSP features 24 custom effects, designed in close co-operation of Erica Synths team rider KODEK and creator of SpinCAD software Gary Worsham. Each effect has 3 manually and CV controllable parameters, manual and CV control over sampling frequency for spanning from 48kHz to really Lo-Fi crunchy sound and full analogue dry/wet control. All effect parameter settings can be saved to the memory and instantly recalled with the effect, which makes Black Hole DSP II ideal for live performances.

Notes: Erica Synths Black LPG is our take on Lowpass Gate idea - it's designed from scratch
module featuring 2nd order lowpass VCF (the original Buchla lowpass gate was 1st order
VCF) and VCA combo with distinct resonance circuit on top. Voltage control over VCF cuto
frequency/VCA oset and mode (VCF/VCF+VCA/VCA), as well as built in decay envelope
generator makes it a versatile module for sound shaping in any modular setup.

FEATURES:
Three vactors for 2nd order VCF
VCF/VCF+VCA/VCA modes
Manual and voltage controlled cuto/oset
Manually and voltage controlled mode selection
Manually resonance depth control
Resonance overdrive switch
Built in decay envelope generator
Manually and voltage controlled decay time
Envelope CV output
Ski-friendly design

SPECS:
Audio output amplitude 10Vptp
CV range (full span) -5V - +5V
Max Decay time 4''
Panel width 10HP
Module depth 35mm
Power consumption 44mA@+12V, 45mA@-12V

Notes: Erica Synths Black Mixer is compact, high quality audio mixer with bonus features - mute switch on each input and three buffered outputs. This allows you to add audio signals to your mix instantly and in exactly right level, plus you can send signals to several post-mixer devices simultaneously, for example, split the output signal to LP and HP VCFs and create advanced bandpass and notch filters.

Technical specifications:
Max input level: -10V - +10V
Mixer gain: 1
Power consumption : +8mA, -8mA
Module width: 6HP
Module depth: 25mm

Notes: Erica Black OCTASOURCE is, what we want to believe, the LFO carried to it's extremes. It features one of 8 waveforms available on 8 outputs phase shifted by 45 degrees OR all 8 waveforms simultaneously on all outputs. Futuremore, waveform selection, phase shift and LFO rate are CV controlled, and the rate can be synched to an external clock signal.

Erica Black series are high-end modules with unique functionality. Only the highest quality components are used and all inputs and outputs are protected against undesired overvoltage. When designing the Black Series, design and usability was prioritsed over module width. Big knobs are assigned to functions that make difference in sound. The Erica Black series are a range of modules that together make an entire synthesizer.

LFO rate: 0.03Hz- 30HZ
Output signal amplitude: 10Vptp
CV input (full sweep): -5V- +5V
Power consumption: +82mA, -44mA
Module width: 12HP

82 mA +12V
44 mA -12V
25 mm deep

Notes: Erica Synths Black Output is a high-quality output mixer and a stereo panner with balanced outputs and headphone amplifier for monitoring your modular masterpieces.

All inputs are buffered, we use stereo potentiometers (similar to those used in high quality studio mixers) for panning, IN4 is a stereo input with simultaneous level adjustment for both channels, IN3 has a CV controlled auto-pan function. There is also a 6.3mm jack for the balanced outputs and headphones.

Notes: Erica Synths Black Quad VCA2 is a versatile four channel voltage controlled amplifier and mixer module for use in complex modular systems. Each channel has linear/logarithmic response selector and signal level indicator LED. All outputs are sequentially mixed and CV inputs are normalled to each other, so you can use the module in various configurations. If no CV is applied, the Black Quad VCA2 performs as a signal mixer, and the 4th channel is DC coupled for controlling CV sources, as well.