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Notes: ***B-STOCK: Slight dent om the edge, otherwise in perfect condition***


VCO:

- Tune: manual tune control (with an internal jumper the range can be set to ~ +/-1 half an octave or ~ +/-2.5 octaves)
- Oct: range switch -1 / 0 / +1 octave
- Mod: modulation depth (attenuator wired to the Mod. socket)
- Dest: switch that is used to address the modulation to frequency modulation (position FM) or pulsewidth modulation (positon PM), in centre positon no modulation
- PW: manual pulsewidth control for rectangle waveform, PW can be also modulated by the Mod. input as mentioned above
- Wave: waveform switch (sawtooth / off / triangle), the sum of the waveform chosen by this switch and the rectangle is fed into the VCF (to turn the rectangle off the PW control has to be set fully CCW or fully CW)
- 1V/Oct. (socket): external CV input for VCO frequency (1V/octave)
- Access to internal bus CV (via jumper, optional, please remove the bus jumper if this feature is not used to avoid unwanted frequency modulation as then the unused CV line of the bus works as a kind of antenna)
- Triangle core VCO, frequency range about 32Hz ... 8kHz

Balance unit:

- The balance unit is made of two VCAs which are controlled by the sum of manual Balance control and the balance CV input in the opposite direction.
- The audio input of VCA1 is hard-wired to the VCO output, audio input 2 is connected to the socket Ext.In.
- The output of the balance unit is used as audio input for the VCF
- Bal.: manual balance control, fully CCW the internal VCO is used, fully CW the external signal (Ext.In) is used, at centre position both signals have about the same level
- CV Bal.: CV input for balance (range about 0...+5V)
- Ext. In: external audio input for VCA2, about 5 Vpp level required for similar loudness as the internal VCO
- This socket is normalled to the internal VCO suboctave f/2 signal (rectangle with half the frequency), if no external signal is applied the suboctave signal is used as the second signal for the balance unit

VCF:

- 24 dB low pass
- Frq: manual frequency control
- FM1: frequency modulation depth (attenuator wired to the VCF FM1 socket, the socket is normalled to the internal Envelope signal and then FM1 controls the modulation depth of the internal envelope applied to the filter)
- FM2 (socket) : second CV input for VCF without attenuator (about 1V/octave), can be used e.g. for VCF tracking by connecting the same CV which is used also for the VCO frequency
- Res: manual resonance control (up to self oscillation)
- If the VCO is turned off (waveform switch = centre position, pulsewidth control = fully CCW or CW) and the VCF resonance is set to maximum the module can be used as a sine oscillator, the tracking at socket VCF FM2 is about 1V/octave (not as precise as the VCO but much better than most other filters)
- ~ 11 octaves frequency range (~ 10 Hz ... 20kHz)

VCA:

- Gain: manual amplitude control (initial gain), can be used to open the VCA without envelope signal
- VCA (switch): used to switch between gate and envelope as control signal for the VCA, in centre position the VCA is not controlled by envelope or gate
- Note: when gate is used the VCA is controlled directly by the gate signal (i.e. hard on/off), this may lead to clicking noise under certain conditions (especially with low VCO/VCF frequencies)
- Special control scale: exponential scale in the range from about -20dB to -80/90dB, linear scale from about -20dB to 0dB
- Remark: this special control scale results in a loudness behaviour that is a bit different from pure linear or exponential VCAs
- Out: audio output of the module (= VCA output)

Envelope:

- Gate (socket): Gate input (min. +5V), can be normalled to the bus gate signal by means of a jumper
- Att: manual control for Attack
- D/R: manual control for Decay/Release
- Env. (switch): used to switch between A/D, ADSR and A/R mode of the envelope generator, in centre position (ADSR) the sustain level is fixed to about 50%
- Envelope (socket): envelope output (about +10V)
- CVT (socket): CV input for time control, by means of two internal jumpers one can select which time parameters are controlled by the CVT input (e.g. A only or D/R only or A/D/R) and in which direction (i.e. if an increasing CVT shortens or stretches the time parameter in question)
- Envelope LED display
- Attack time range: ~ 1ms ... 5 sec (can be extended by using the CVT input)
- Decay/Release time range: ~ 1ms ... 15 sec (can be extended by using the CVT input)

Notes: Module A-105-2V is a voltage controlled low pass filter with 24dB/octave slope.

It is the successor of the A-105 which had to be discontinued because the obsolete SSM2044 filter circuit. The A-105-2 is based on the SSI2144 which is in turn the successor circuit of the SSM2044. The features of both modules are nearly the same. The main difference is the clearly reduced front panel width of the A-105-2 (4HP instead of 8HP) and the associated changes of the controls and sockets positions. In addition the A-105-2 is equipped with 2 audio inputs.

The module has these controls and in/outputs available:

Control Frequ: manual frequency control
Control FCV2: attenuator for the frequency control voltage applied to socket FCV2
Control Q: manual resonance control
Control QCV: attenuator for the resonance control voltage applied to socket QCV
Control Input 1 Level: attenuator for the audio input signal applied to socket Input 1
Socket Input 1: audio input 1 (with attenuator)
Socket Input 2: audio input 2 (without attenuator)
Socket FCV1: frequency control voltage 1 (without attenuator, about 1V/oct scale)
Socket FCV2: frequency control voltage 2 (with attenuator)
Socket QCV: resonance control voltage (with attenuator)
Socket Out: audio output
Technical notes:

Frequency range: about 15Hz ... 15 kHz
Resonance up to self oscillation
Max. input voltage at Input 2 without clipping/distortion: about 15Vpp
Max. output voltage without clipping/distortion: about 15Vpp
The signals of both inputs are mixed before they are processed by the filter. This saves an external mixer for small setups.
Depth: 45 mm

HP : 4

Notes: Module A-105-2 is a voltage controlled low pass filter with 24dB/octave slope.

It is the successor of the A-105 which had to be discontinued because the obsolete SSM2044 filter circuit. The A-105-2 is based on the SSI2144 which is in turn the successor circuit of the SSM2044. The features of both modules are nearly the same. The main difference is the clearly reduced front panel width of the A-105-2 (4HP instead of 8HP) and the associated changes of the controls and sockets positions. In addition the A-105-2 is equipped with 2 audio inputs.

The module has these controls and in/outputs available:

Control Frequ: manual frequency control
Control FCV2: attenuator for the frequency control voltage applied to socket FCV2
Control Q: manual resonance control
Control QCV: attenuator for the resonance control voltage applied to socket QCV
Control Input 1 Level: attenuator for the audio input signal applied to socket Input 1
Socket Input 1: audio input 1 (with attenuator)
Socket Input 2: audio input 2 (without attenuator)
Socket FCV1: frequency control voltage 1 (without attenuator, about 1V/oct scale)
Socket FCV2: frequency control voltage 2 (with attenuator)
Socket QCV: resonance control voltage (with attenuator)
Socket Out: audio output
Technical notes:

Frequency range: about 15Hz ... 15 kHz
Resonance up to self oscillation
Max. input voltage at Input 2 without clipping/distortion: about 15Vpp
Max. output voltage without clipping/distortion: about 15Vpp
The signals of both inputs are mixed before they are processed by the filter. This saves an external mixer for small setups.
Depth: 45 mm

HP : 4

Notes: Module A-101-8 is a 8-stage phase shifter which uses light-sensitive resistors (LDR) and is a replica of the Compact Phasing A manufactured by the company Schulte in the seventies. The actual phasing circuit is identical to the historic model. Only the illumination control of the LDRs is different: the A-101-8 uses LEDs to illuminate the LDRs, the historic model used incandescent miniature lamps. And the A-101-8 has no built-in LFO but can be controlled by any external control voltage source (e.g. LFO, ADSR, random, Theremin, ribbon controller, sequencer, midi). The phasing offset (i.e. the base value for the phase shifting) and the modulation depth of the external control signal can be adjusted separately. The Compact Phasing A had no offset control but only a depth control for the built-in LFO. Feedback and mixing ratio of the output signal are set by two controls. The audio input is equipped with an attenuator. The module has two audio outputs available (same as the historic model) and a visual display of the phase shifting.

The module has these controls and in/outputs available:

Control Man. : manual control of the phase shift offset (base value)

Control CV: attenuator for the signal applied to the CV socket

Control Feedb.: Feedback or Resonance (similar function as filter resonance/feedback/emphasis)

Control Mix: sets the mixing ratio between original and phase shift signal appearing at output 1

fully CCW: only the modified input signal appears at output 1 (see note below *)

center: a mixture between the modified input signal and the phase shift signal appears at output 1, that's the standard position for the classical phasing effect

fully CW: the pure phase shifted signal appears at output 1 (e.g. for vibrato effects)

Control Input Level: attenuator for signal applied to the In socket

Socket In: audio input

Socket CV: control voltage input

Socket Out 1: audio output 1 (mix signal)

Socket Out 2: audio output 2 (modified input signal)

LED: visual control of the phase shift

The module has some peculiarities (same as the historic model):

The input signal is processed at first by a pre-stage which outputs a "modified" input signal (*). This signal is not processed by the phase shift stages but is affected by the feedback setting. Only when feedback is set to zero this signal is identical to the input signal. Otherwise it contains feedback components.

This signal is output on socket Out 2.

When both output sockets Out 1 and Out 2 are used as stereo channels one obtains a spatial stereo sound effect.

The same signals is also used for the CCW position of the mix control. With mix control fully CCW the unmodified signal appears only if the feedback control is set to zero. Otherwise it contains feedback components.

The historic model had two audio inputs: one 5-pin DIN socket and a 1/4" jack socket. The DIN socket was intended for high-level line signals. When the 1/4" jack socket was used the amplification of the pre-stage increased by about 100. The 1/4" jack socket was intended for low level signals (e.g. electric guitars or microphones). For this feature the A-101-8 has an internal jumper that can be used to increase the amplification. As long as the module is used within the A-100 system usually the lower amplification is used to avoid distortion.

The 8 photo resistors and LEDs are assembled within an small lighproof box. In addition the pc boards are made of lighproof black material to avoid interfering light from other modules or the bus board.

Dimensions
4 HP
45 mm deep

Current Draw
30 mA +12V
30 mA -12V

Notes: TRS Tool - Stereo/Dual CV/Audio/MIDI signal multipurpose module

TRS Tool is a multipurpose CV and audio signal distribution module for working with 3.5 mm stereo jacks (tip/ring/sleeve). These jacks are common for stereo audio but also for MIDI.

The TRS TOOL has no active components and does not need a power supply. It contains 3 different sections set up as following from top to bottom:

TRS Split
The upper jack carries the tip signal
The middle jack carries the stereo/dual signal
The Lower jack carries the ring signal

Use cases:

When you plug a stereo signal carried by a stereo (TRS) cable into the middle jack, you receive two separate mono signals by plugging in a mono (TS) cable in the upper jack to carry the left signal and a mono (TS) cable in the lower jack to carry the right signal. That way you can attack an "AUX" cable such as from your smartphone to your modular.

Or the other way around: Send two separate mono signals by plugging in a mono (TS) cable in the upper jack to carry the left signal and a mono (TS) cable in the lower jack to carry the right signal. Receive a stereo signal at the middle jack to be used with a stereo (TRS) cable.

Converting from stereo to dual mono and back allows you to alter the two sides of a stereo signal with different effects/filters.

Some tuners such as the Korg NTS-2 accept inputs to tune two oscillators combined in one 3.5 mm stereo jack. With one splitter you can easily feed two VCO signals into such a tuner.

TRS Quad Multiple

Multiply a stereo signal. Four TRS jacks to be used with stereo minijack cables.

Use cases:

You could use this to multiply the signal for headphones - listen to patches together.

Or create sends - route one (or two) stereo signals to effects and use the third one as dry signal going to the mixer.

Experimental: multiply a MIDI signal to two or three receivers: NOTE: depending on the output power of the MIDI sender and the power draw of the MIDI receivers this might or might not work. MIDI uses a current of typically 5 mA instead of voltage levels for data transmission. So when you attach too many devices to one output the current might not be enough to drive all of them. So this is strictly spoken not covered by the MIDI standard, but might work anyway.

A/B Swapper
The bottom section of the module consists of two connected TRS jacks.
Whatever signal applies to the tip in jack A will be routed to the ring in jack B.
Whatever signal applies to the ring in jack A will be routed to the tip in jack B.

Use cases:

Switch the left and right side of a stereo audio signal.

Switch between MIDI standard A and B: If you use MIDI over minijack, there's two standards A and B - some manufacturers use A some B - thus not all connections are working. Now you can easily switch between the standards using the TRS Split.

Note: The MIDI input of the DROID X7 automatically detects A and B, so there is no switching necessary. The MIDI output of the X7 can be set to A or B with a switch on the back of the module.

Dimensions
2 HP
22 mm deep

Current Draw
Module does not draw current

Notes: TRS Split - CV/Audio signal distributor

TRS Split is a multipurpose CV and audio signal distribution module. It has three 3.5 mm TRS (tip/ring/sleeve - stereo) jacks and six ordinary 3.5 mm mono jacks.

It contains 3 identical sections set up as following:

Upper jack carries the tip signal
Middle jack carries the stereo/dual signal
Lower jack carries the ring signal

Each section can either split a stereo signal into two mono signals or join two mono signals into one stereo signal. The module does not have any active components and does not need a power supply.

Use cases:

When you plug a stereo signal carried by a stereo (TRS) cable into the middle jack, you receive two separate mono signals by plugging in a mono (TS) cable in the upper jack to carry the left signal and a mono (TS) cable in the lower jack to carry the right signal. That way you can attack an "AUX" cable such as from your smartphone to your modular.

Or the other way around: Send two separate mono signals by plugging in a mono (TS) cable in the upper jack to carry the left signal and a mono (TS) cable in the lower jack to carry the right signal. Receive a stereo signal at the middle jack to be used with a stereo (TRS) cable.

Converting from stereo to dual mono and back allows you to alter the two sides of a stereo signal with different effects/filters.

Some tuners such as the Korg NTS-2 accept inputs to tune two oscillators combined in one 3.5 mm stereo jack. With one splitter you can easily feed two VCO signals into such a tuner.

Switching sides

Two splitters can be used to switch tip and ring (left and right): Plug in a stereo cable in the middle jack of the first section. Connect mono cables to the upper and lower jack of the first section. Then connect the upper mono cable of the first section to the lower mono jack of the second section and the lower mono cable of the first section to the upper mono jack of the second section. The signals are switched. Plug a stereo cable in the middle of the second splitter and you're good to go.

Hint: This also works for MIDI signals. If you use MIDI over minijack, there are two standards A and B - some manufacturers use A some B - thus not all connections are working. Now you can easily switch between the standards using the TRS Split.

Note: The MIDI input of the DROID X7 automatically detects A and B, so there is no switching necessary. The MIDI output of the X7 can be set to A or B with a switch on the back of the module.

Stereo multiple setup

If you have a separate multiple in your modular, you can use the TRS-SPLIT to create a 1:2 stereo multiple as follows:

Plug a stereo cable in the middle jack of section 1, patch the mono cable from the upper jack into section 1 of your multiple (e.g. a 3/3/3 multiple) and feed two of the outputs back into the upper jacks of section 2 and 3. Do the same with the mono cable coming from the lower jack of section 1 going into the second section of a 3/3/3 multiple and patch two cables back into the lower jacks of section 2 and 3 of the TRS Split. Now the middle jacks of section 2 and 3 both carry the stereo signal.

Dimensions
2 HP
22 mm deep

Current Draw
Module does not draw current

Notes: R2M is module 1 of a pair of two 2 HP modules that allow you to connect a chain of controllers to your DROID master through a standard 3.5 mm stereo cable (sometimes also called aux-cable).

The usual idea is that you put all your DROID controllers into a skiff case and mount your DROID master, X7 and G8 into another case, together with all your fancy Eurorack sound modules.

R2C is module 2 of a pair of two 2 HP modules that allow you to connect a chain of controllers to your DROID master through a standard 3.5 mm stereo cable (sometimes also called aux-cable).

The usual idea is that you put all your DROID controllers into a skiff case and mount your DROID master, X7 and G8 into another case, together with all your fancy Eurorack sound modules.

While you could do this with the typical 6-pin ribbon connector (e.g. the 80 cm version that we offer), using the R2M/R2C combination has some serious advantages:

The connection cable can be almost arbitrary long (20 m have been tested and works perfectly).

Since the connection is done on the front of the modules, you can quickly disconnect your skiff for the purpose of travelling to a gig.

You can use a standard 3.5 mm stereo TRS cable for the connection.

These modules are not just passive connectors but contain special driver ICs that transform the electronic voltage levels, which run in the 6-pin ribbon, to something more stable and reliable that is fit for longer distances in a more hostile environment.

The controllers do not receive their power from the master but from the R2C module, which has a power connector and a voltage regulator for that purpose. Each chain of the R2C module provides the same power to its controller chain as the master does (it contains the identical voltage regulator). That means that you can connect up to 32 controllers (!) to one R2C.

Another nice thing: The R2M/R2C combination allows for two of these master / controller connections in parallel. That means that you can have two masters being attached to their individual controller chains. That does not mean, that each of the masters can access each of the controllers at the same time, however. Both master / controller connections work completely separately.

Package contents:
* one R2M module
* one R2C module
* one Eurorack power cable for the R2C
* two 6-pin ribbon cables for connecting the R2M to two masters
* two 3.5 mm stereo TRS cables, approx.. 1.2 m
* 4 red M3 screws for mounting the two modules

Notes: The Dannysound VU Meters is designed to be used with 2 x Dynamics modules. The modules connect internally via 2x3 pin ribbon cables. The meters provide a visual representation of various signals within the Dynamics modules making settings easier.

Features:

External input sockets for monitoring external sources.

Switch to select high or low meter sensitivity or off if the clicking needles get annoying!

Monitoring of the compression/expansion amount.

Monitoring of the unprocessed input level.

Monitoring of the compressor/expander output level.

Power consumption: 0.03mA at +12V and 83mA at -12V at and 3mA at +5V
Depth: 51mm
HP : 8

Notes: The Timbre is a 6HP Eurorack module based on the wave folder section of the Buchla 259 oscillator as implemented in the Music Easel.

The wave folder adds extra harmonics to input signals that have low harmonic content to create rich and interesting timbres. Typical input sources to use would be Sine and Triangle waves but you are welcome to try other sources as well! The Dannysound Timbre adds an extra input to the Buchla design to allow 2 oscillators to drive the wave-folder simultaneously - this dramatically increases the range of possible tones that can be generated and allows the folder to go wild!

Features:

Osc1 / Osc2 Mix - Adjusts the mix between the Oscillator 1 and 2 inputs, also acts as an attenuator if only one input is used.
Timbre Control - Adjusts the overall amount of wave fold
Timbre CV - Bipolar (attenuator) controls the Timbre CV input
Symmetry - Adds an offset to the input so that the top half of the wave begins to fold earlier
Blend - Mixes between the clean and effected sound

Power consumption: 46mA at +12V and 48mA at -12V

Depth: 25mm

HP : 6

Notes: The updated "Skiff friendly" design of the mml filter now features bipolar "Attenu-verters" for the cv controls as well as an all new red mode!

This new mode activates a feedback distortion circuit capable of actually changing the pitch of the notes coming in to the filter in a musical way that adds instant variety to acid basslines, creates weird and strange alterations to drones or adds some nice overdriven distortion to whatever goes into it!

The multi-mode ladder (mml) filter is based on the classic transistor ladder low pass filter by dr. Robert a. Moog. This filter updates the classic 4-pole ladder design to provide band pass and high pass filter responses as well as the traditional low pass filter. There are 2 bipolar controls with attenu-verters for the cut-off frequency plus a cv input for the resonance.

The core of the circuit features a fully discrete transistor design with an op-amp buffered output, this allows soft saturation of the input signal to get the classic overdriven tones of the ladder filter. A bass compensation circuit has been included to retain the bass response in low pass mode when the resonance is increased. The bass compensation also helps to improve the response of the high pass filter.

The red mode is activated/de-activated by holding the mode button for 0.3s. In this mode the filter cut-off, input volume and resonance all interact and the effect is to produce alterations to the incoming frequencies. The pitches of the audio coming into the filter also affect the alterations as well selecting between low pass, band pass and high pass filter modes whilst in red mode.

Features

Low pass, band pass and high pass modes.
Red mode feedback distortion.
CV controlled resonance.
Added low frequency compensation.
Soft saturation of input.
2 x bipolar attenuverter CV inputs.

Width: 6 HP
Depth: 25mm
Power: +12v = 50ma / -12v = 39ma

Notes: The Looping VC-ADSR is a 4-stage, loop-able, envelope generator based on the ENVGEN 8C IC from Electric Druid. The individual sections of the Envelope (Attack, Decay, Sustain, Release, Level and Time) can all be individually controlled via CV.

The module has 5 MODES of operation that can be selected via the pushbutton LED switch with the status indicated by the five LEDs above:

Normal Envelope - Gate signal at the GATE/TRIG input, fires the ADSR.
Trigger Mode - Trigger signal at the GATE/TRIG input fires the AD portion of the envelope. The sustain control determines the final value the envelope rests at after the decay portion has ended.
Gated Looping Envelope - ADSR loops whilst gate signal is high.
Looping Envelope - ADSR loops regardless of gate signal.
LIN response (Hold switch to select between LIN/EXP Mode) - Sets the envelope response to be Linear. The response is Exponential when the status LED is off.
When the envelope is looping, all 5 controls affect the output. Attack and Decay operate, as one would expect. The Sustain control sets the minimum voltage the decay part of the envelope will decay to. The Release sets a release time from the end of the Sustain period to the beginning of the next cycle. When the Sustain is set to 0 you can use the Release control to add a delay between the Attack and Decay cycles.

In Normal Envelope mode the Sustain CV input can be used with an LFO source to add amplitude modulation that gradually increases as the Envelope transitions from the Attack/Decay part of the envelope into the Sustain part. The Level CV is also a useful point for amplitude modulation or can be used for Velocity Sensitivity via CV.

The Time CV is set so that increasing voltage shortens the overall envelope time to better mimic the sounds of percussive instruments.

Features:

5 Modes of Operation: Gate Input ADSR, Trigger Input ADS, Gated Loop, Constant Loop and EXP/LIN Envelope Responses
CV over: Attack, Decay, Sustain, Release, Level and Time
Works with Gate or Trigger Signals from +5V to +12V
CV Input Range 0V to +10V
Output CV Range 0V to +10V


Power consumption: 28mA at +12V and 18mA at -12V
Depth: 25mm
HP : 6

Notes: Gorgeous vintage-style through-zero FM here, featuring five simultaneous waveform outputs, pulse width modulation, soft sync and a dedicated LFO mode.

Supplier's notes:
The EN129 Thru Zero Oscillator is an all analogue triangle-core VCO specialising in frequency modulation. Analogue through-zero FM modulation produces a wide array of timbres particularly useful for bell like or percussive sounds. Through zero linear frequency modulation can be precisely dialled in thanks to a dedicated CV input attenuator and through zero offset control. Logarithmic FM is also available via it's own dedicated input with attenuator and both FM inputs have an LED to indicate incoming voltages. Simultaneous analogue wave outputs include: Sine, Triangle, Sawtooth, Square and Pulse wave with Pulse Width Modulation. The PWM control goes to zero at either end of it's range, which is very useful for creating rhythmic sounds with voltage control. Furthermore the PWM control doubles up as wave shape modulation for the Sawtooth wave - gradually altering the waveform until it shifts half a cycle. The EN129 features Coarse and Fine frequency controls as well as an LFO mode. LFO range is accessed via an LED pushbutton that also acts as the LFO speed indicator - the button will light up when the waveform moves through its positive cycle. A new addition of a Soft Sync Input allows the phase of the oscillator to be controlled by an external oscillator for an even greater range of timbres.

The EN129 is based on the pioneering work by Douglas Kraul and Bernie Hutchins. You can read the original Electronotes article from 1981 that the design is based upon here.

Features:

Soft Sync Input
Thru Zero Linear FM
Logarithmic FM
Zero to Zero PWM
Sawtooth Wave Shape Modulation
Simultaneous Outputs for: Sine, Triangle, Saw, Pulse & Square
Coarse & Fine Controls with LFO Mode
Includes Power Supply Isolation on Frequency Controls
Power consumption: 51mA at +12V and 47mA at -12V

Depth: 22mm

HP : 12

Notes: The Dannysound Dynamics is a compressor / expander originally designed to process drums but, like most processing devices, it can be used for a wide variety of applications.

The module comprises of:

Compressor / Expander
Sub Bass Enhancer
3 Band Inductor-based EQ
Harmonic Exciter

The compressor / expander section uses a discrete transistor-based circuit that allows for soft clipping when overdriven.

The envelope detector is known as a feedforward type of circuit; taking its input from the signal before it goes to the compressor rather than after. This type of circuit is known for having fast attack times.

The Sub Bass enhancer has its own compression circuit that "ducks" the initial transient. This allows the sub bass to be increased without distortion on the transient peaks, increasing the overall level.

There is a MIX control to allow the unprocessed signal to be mixed back in with the processed signal.

The 3 band EQ is an inductor based LCR design. After Dannysound tryed out various EQ topologies, this was the design that sounded the nicest. When overdriven it gives a nice "bite" to the sound, and it has a certain characterful charm that's hard to put into words. The controls have a response that are subtle to begin with and get more pronounced as the controls are increased.

The Harmonic Exciter adds a little distortion to the high frequencies, which bring out the sparkle of cymbals or the snap snare drums. The operating bandwidth can be switched between Low (snare drum snap) or High (Cymbals sparkle).

There are inputs for side chaining and control with an external envelope as well as an envelope out to make the envelope detector output available to drive other modules.

It also features separate inputs and outputs for the Compressor / Expander and EQ sections, so they could be used as 2 separate modules.

Features:

Compressor/ Expander
Sub Bass Enhancer
3 Band Inductor-Based EQ
Harmonic Exciter
Envelope In/Out
Sidechain Input
Seperate In/Out for Compressor, Expander and EQ-Section
Power consumption: 85mA at +12V and 61mA at -12V

Depth: 25mm

HP : 12

Notes: The Cali oscillator is a new and improved version of the classic Buchla 258 wave shaping oscillator with an additional pulse width modulated output. The oscillator features the classic Sine to Square and Sine to Saw wave shaping with dedicated CV control. The Cali Oscillator differs from previous versions of the 258 in that it has a 3-way position switch rather than 2-way. This new middle position features a bonus waveform that will shape from a pulse into a kind of triangular trapezoid shape. The shaping control is more unpredictable in this middle position and the switch reacts to body contact when the wave shape is set low - it can be thought of as an extra bonus waveform, great for producing glitchy sounds! There are dedicated inputs for linear and exponential FM and the Cali also adds a Pulse output with it's own width control and PWM CV input. The behaviour of the pulse output can be affected by the position of the waveform switch and wave shape control. The module features Coarse and Fine frequency controls and an LFO mode, LFO range is accessed via an LED pushbutton that also acts as the LFO speed indicator - the button will light up when the waveform moves through its positive cycle. Because the wave shape modulation is independent of pitch this oscillator is very useful for creating complex timbres whilst retaining musical pitch.

Features

Sine to saw/square waveform output with cv over wave shaping

Pulse output with voltage controlled PWM

Linear FM with attenuator

Logarithmic FM with attenuator

Bonus 'trapezoid' output

Coarse & fine controls with LFO mode

Includes power supply isolation on frequency controls


Width: 12 HP
Depth: 22mm

Power
+12V = 37mA
-12V = 34mA

Notes: Neat little interface module to help pad controllers play nicely with Eurorack. Hook up a device like a Launchpad or APC and jam out rhythms with retriggering options, dynamic control and MIDI sync.

Supplier's Notes:
Triggerpad is a dynamic trigger/gate sequencer in eurorack format on only 6hp. A USB MIDI controller with an 8×8 grid like Launchpad or APC is used to display and edit the patterns (see the list of compatible controllers). The user experience is tailored to live performance and detailed composition: dial in simple rhythms or complex polyrhythms, retrigger at audio rate, create dynamic percussions with velocity triggers or use longer pulses to create steppy modulations.

By using USB MIDI controllers that you might already have and maybe not use anymore, we avoid producing more plastic. Give your old gear a second life!

Dimensions & consumption

Width: 6hp
Depth: 39mm
+12V: 120mA (without USB MIDI controller connected)
-12V: 20mA
5V: 0mA
USB MIDI controllers consume up to 150mA on +12V

Connectivity

8 dynamic trigger/gate outputs (0-10V)
USB MIDI Host
Clock in
Clock out
Reset in
Reset out

Compatibility

Launchpad Pro Mk3
Launchpad X
Launchpad Mini Mk3
Launchpad Mini Mk2
Launchpad Pro
Launchpad Mk2
Launchpad S
APC Mini Mk1
APC Mini Mk2

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


A characteristically unique take on mixing from Buchla, with six mono inputs and a built-in mic/guitar pre-amp. Each channel can be cued to a monitor mix, while the first and last channels also include voltage-controlled panning.

Supplier's Notes:
The Tiptop 207t is a modern reimagining of the classic Don Buchla 207 Mixer/Preamplifier from the 1970s 200 Series. This stereo mixer comes with a built-in preamp that allows you to boost external instruments and microphones, making it a versatile tool for any modular setup. The 207t also features a six-channel mixer with a variety of signal routing options, including the ability to route channels to the monitor and L&R signal outputs, with per-channel control over loudness and panning.

Each channel has a Mon switch that sends the channel's signal to the monitor outputs, which are always full-volume and summed to mono, making it useful for basic monitoring applications or rudimentary mixing. The Prog switch sends the signal to the L&R signal outputs, with loudness controlled by the Level Adjustment slider and panning determined by the Channel Assignment knobs. The first and sixth channels offer voltage control of panning; these channels are hard-panned when no CV is applied.

The preamp section features a 1/4" input and multiple gain settings, making it suitable for use with external line level instruments, electric guitars, or dynamic microphones. The continuous amplification control provides added flexibility for your audio needs. Finally, the Expansion In is a stereo input that sums to the left and right main outputs, which is great for chaining multiple 207t modules or adding another stereo source at the final output.

While the 207t's functionality may be simple, it is an essential part of any 200t system, serving as the glue that holds everything together. The Tiptop 207t is a fantastic mixer/preamp option that delivers quality sound and reliable performance.

Buchla 207t Features

Mixer/preamp module based on Don Buchla's original 207 design
Six-channel mixer with per-channel level control and panning
Voltage-controllable panning on channels 1 and 6
Manual panning on channels 2-4
Program switches can act as channel mutes for main outputs
Mon switches route signal (in mono) to Monitor output
Expansion input useful for stereo chaining and more
Re-designed preamp for high audio fidelity
Preamp suitable for use with external instruments, electric guitars, dynamic microphones, and more

Eurorack module
28hp wide

Notes: A characteristically unique take on mixing from Buchla, with six mono inputs and a built-in mic/guitar pre-amp. Each channel can be cued to a monitor mix, while the first and last channels also include voltage-controlled panning.

Supplier's Notes:
The Tiptop 207t is a modern reimagining of the classic Don Buchla 207 Mixer/Preamplifier from the 1970s 200 Series. This stereo mixer comes with a built-in preamp that allows you to boost external instruments and microphones, making it a versatile tool for any modular setup. The 207t also features a six-channel mixer with a variety of signal routing options, including the ability to route channels to the monitor and L&R signal outputs, with per-channel control over loudness and panning.

Each channel has a Mon switch that sends the channel's signal to the monitor outputs, which are always full-volume and summed to mono, making it useful for basic monitoring applications or rudimentary mixing. The Prog switch sends the signal to the L&R signal outputs, with loudness controlled by the Level Adjustment slider and panning determined by the Channel Assignment knobs. The first and sixth channels offer voltage control of panning; these channels are hard-panned when no CV is applied.

The preamp section features a 1/4" input and multiple gain settings, making it suitable for use with external line level instruments, electric guitars, or dynamic microphones. The continuous amplification control provides added flexibility for your audio needs. Finally, the Expansion In is a stereo input that sums to the left and right main outputs, which is great for chaining multiple 207t modules or adding another stereo source at the final output.

While the 207t's functionality may be simple, it is an essential part of any 200t system, serving as the glue that holds everything together. The Tiptop 207t is a fantastic mixer/preamp option that delivers quality sound and reliable performance.

Buchla 207t Features

Mixer/preamp module based on Don Buchla's original 207 design
Six-channel mixer with per-channel level control and panning
Voltage-controllable panning on channels 1 and 6
Manual panning on channels 2-4
Program switches can act as channel mutes for main outputs
Mon switches route signal (in mono) to Monitor output
Expansion input useful for stereo chaining and more
Re-designed preamp for high audio fidelity
Preamp suitable for use with external instruments, electric guitars, dynamic microphones, and more

Eurorack module
28hp wide

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


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

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

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

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

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

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

Nerdy-specs:

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

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

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

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

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

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

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

Nerdy-specs:

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

Notes: Esquivel is Bocuma's homage to space-age pop. This is a voltage controlled filter in a 14HP Eurorack, around a diode ladder topology. It is capable of switching between the 3 classic states: low-pass (LPF), high-pass (HPF) and band-pass (Band Pass).

Control cut-off, resonance and two inputs for CV. Likewise, a mixer for 3 signals was added at the input, giving it the possibility of mixing 3 different waveforms to obtain more harmonic-enriched signals and to maximize the sonic possibilities of its resonance.

Specs:

14HP
+12V > 12mA -12V > 12mA

Notes: Endless Processor (Ex)pander Kit opens new possibilities for Endless Processor!

Now, there is pitch control over both channels. You can shift one octave up or shift down to a full sound stop, covering multiple octaves, effectively replicating the variable speed replay effect. This allows for the creation of new textures from existing sounds.

Additionally, with the expansion PCB, the Endless Processor gains an SD card slot that enables you to store up to 5 sound banks. This means everything sustained in both channels can be saved to preserve those happy accidents! However, this is not just a simple save and recall process. It allows more performing possibilities: sustain new sounds, play with them, and then recall the stored ones, all with respect to the fade controls.

And if that's not enough, there's a bonus! With the help of our web tool, you can upload the sound banks saved on the SD card and extract clickless loops of each layer in WAV format. You can then import these loops into your DAW or hardware sampler to build your composition on top of the captured sounds.

Endless Processor Expander Kit contains:

Endless Processor Ex module
Expansion PCB for the Endless Processor
Cable to connect Ex module to the expansion PCB

Width: 4HP

Depth of Endless Processor with expansion PCB attached: 45mm

Depth of Endless Processor Ex module: 30mm

Notes: An accurate Manual Voltage Source.

Voltio fits somewhere between a music tool and a piece of electronics lab gear.

It generates voltages equivalent to all the notes on the 12-tone equal temperament scale throughout a ten-octave range, with an intuitive two-knob interface.

The Precision Adder In, lets you sum Voltio's Out with external voltages.

Additionally, the front panel banana connectors let you plug standard multimeter probes for hands-free operation on electronics lab.

Use it to transpose Oscillators and sequences in a musical way or as a reference to calibrate your analogue gear.

Features:

Easily adjust your oscillators in known intervals.
Transpose Musical phrases from sequencers, arpeggiators, or any other notes source.
Calibrate oscillators and filters on your DIY projects or during analogue gear maintenance.

Specs:

Current needs: +12V: 35mA, -12V: 15mA
Width: 6 HP
Depth: 30mm including power connector
Designed, kits prepared and assembled in Barcelona.

Notes: 1U TRS

Total flexibility for the Befaco 7U or Intellijel cases rear connectors Jacks.
The channels are reversible and can be used independently for Input or Output.
4 Inputs or Outputs (per module) can be obtained by "AND" cables.
Independent tip and ring attenuators are selectable for each channel to convert the Modular Input Level to Line Output Level.

Features

Selectable attenuator per channel
Fully compatible with Intellijel's 7U and Palette cases.
1U Intellijel format.

Specs

Current needs: Passive
Width: 6 HP
Depth: 20 mm (including power connector)
Designed, kits prepared and completed modules assembled in Barcelona

Notes: STMix is a four-channel stereo mixer in 28hp and 1U format. It can work independently or as an expansion of Befaco's Hexmix module via the six-pin connector located in the back. The module is designed under the Intellijel 1U format.

Features

Four channels stereo inputs with volume control.
AC Coupled inputs to improve audio performance.
Output clipping LED indicators.
Connector at the back to interface with the Hexmix module.
1U Intellijel format

Specs:

Current needs: +12V: 30mA, -12V: 30mA
Width: 28 HP
Depth: 20mm (including power connector)
Aluminium, heat-treated front panel
Designed, kits prepared and completed modules assembled in Barcelona

Notes: Really clever stuff here. The Octaves VCO takes an additive approach, layering harmonics on top of a fundamental frequency to create complex tones. Control the six bands via CV to adjust the harmonic content.

Supplier's Notes:
A harsh and funky take of an additive Oscillator.

Pile up multiplications of your frequency to get a lo-fi-retro wall of squared sound!

You get six doubled frequency pulses, or octaves, with common PWM and volume control for each of them.

The output of each is cascaded to the next one, so you can either have one output with all frequencies or break the chain and get several sums and modulate each independently!

Features
Six bands, multiple of the base frequency.
Square wave oscillator with Octaves selector PWM control and sync.
Range control for Tune pot.
Volume CV control and individual output for each band
Cascaded summing outputs.

Specifications
Current needs: +12V: 110mA, -12V: 84mA
Width: 12 HP
Depth: 22mm (assembled and DIY), including power connector
Aluminium, heat-treated front panel
Designed, kits prepared and completed modules assembled in Barcelona

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


Befaco's unique GameBoy-based effects module allows you to change effects by swapping cartridges, all with CV control over key parameters. Effects include Skuara's harsh fuzz, Instruo's micro phaser and much more.

Supplier's Notes:
A crazy idea with the support of a bunch of crazy people.

A Multi FX module based on game carts!

FxBoy is a multi-FX module designed in collaboration with several talented manufacturers.

This is an effect unit with CV control over the parameters and Dry/wet control, with a Built-in CV controllable four bands EQ.

Each effect is physically hosted in a hot-swappable game cart and designed by a different manufacturer: Touell Skouarn with Skuara a harsh fuzz with overdrive, Instruo with micro Phaser, a two-flavoured Phaser, Feedback modules with a vintage Flanger, XOR with FX-Girl, a digital double effect module: Delay + Granularizer, Making sound machines with an analogue Wave folder, Tesseract with a bit crusher and Befaco Trash distortion!

What have these crazy people put in their cartridges?

Trash

Trash is a harmonic distortion that combines both clipping and folding flavours. Modes A and B will select between aggressive and more aggressive flavours!

Flanger

Analogue Wavefolder

Eskuara

AVMA
AVMA by Tesseract Modular is a bipolar VCA with one switchable wavefolder stage followed by an analogue frequency reducer. The VCA gain is x2, it can be used with i5V oscillator signals at the CV input for ring modulation effect.
Micro Phaser

Three cascaded all-pass filters, a built-in LFO and a saturator in the feedback path.

The purpose for this cartridge is to completely f&%k your phase up!

Instruo - We make sounds with the things that we make to make sounds with.

Technical Specifications

CV control over all parameters and Dry/wet
CV controllable four-band EQ, routable post or pre-effect.
Hot swap for all carts.
Selector for two different flavours of each cart.
Open specifications to design your own carts

Specs

Current needs: +12V: 125mA, -12V: 100mA, 5v: 0mA
Width: 12 HP
Depth: 35 mm (including power connector)
Aluminium, heat-treated front panel.
Designed and assembled in Barcelona.

Notes: Befaco's unique GameBoy-based effects module allows you to change effects by swapping cartridges, all with CV control over key parameters. Effects include Skuara's harsh fuzz, Instruo's micro phaser and much more.

Supplier's Notes:
A crazy idea with the support of a bunch of crazy people.

A Multi FX module based on game carts!

FxBoy is a multi-FX module designed in collaboration with several talented manufacturers.

This is an effect unit with CV control over the parameters and Dry/wet control, with a Built-in CV controllable four bands EQ.

Each effect is physically hosted in a hot-swappable game cart and designed by a different manufacturer: Touell Skouarn with Skuara a harsh fuzz with overdrive, Instruo with micro Phaser, a two-flavoured Phaser, Feedback modules with a vintage Flanger, XOR with FX-Girl, a digital double effect module: Delay + Granularizer, Making sound machines with an analogue Wave folder, Tesseract with a bit crusher and Befaco Trash distortion!

What have these crazy people put in their cartridges?

Trash

Trash is a harmonic distortion that combines both clipping and folding flavours. Modes A and B will select between aggressive and more aggressive flavours!

Flanger

Analogue Wavefolder

Eskuara

AVMA
AVMA by Tesseract Modular is a bipolar VCA with one switchable wavefolder stage followed by an analogue frequency reducer. The VCA gain is x2, it can be used with i5V oscillator signals at the CV input for ring modulation effect.
Micro Phaser

Three cascaded all-pass filters, a built-in LFO and a saturator in the feedback path.

The purpose for this cartridge is to completely f&%k your phase up!

Instruo - We make sounds with the things that we make to make sounds with.

Technical Specifications

CV control over all parameters and Dry/wet
CV controllable four-band EQ, routable post or pre-effect.
Hot swap for all carts.
Selector for two different flavours of each cart.
Open specifications to design your own carts

Specs

Current needs: +12V: 125mA, -12V: 100mA, 5v: 0mA
Width: 12 HP
Depth: 35 mm (including power connector)
Aluminium, heat-treated front panel.
Designed and assembled in Barcelona.

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


Orobas is a dual tube amplifier that is composed of two identical units.

Each channel has two audio inputs with dedicated gain controls and one output volume control.
Thanks to clever routing, a wide variety of sounds can be created. The two channels can be connected in parallel or in series (Parallel / Series). In series connection, the output of channel 1 is still active, good for parallel signals (note: each channel output is phase-inverted in relation to the opposite input). This way, feedback can be generated by feeding back the signal from output 1 to e.g. a control voltage input.

The screen control voltage input determines the gain and the sound characteristics. Additionally, the input is normalized to INPUT 1 of the respective channel.

The Suppress control voltage input is normalized to the input signal if nothing is connected. The purpose of this input is to direct electrons reflected from the anode back to the anode. Turning the knob to the positive does not change as much, turning it to the negative slightly attenuates overtones. With a positive control voltage the change is minimal, but with a negative control voltage you can realize e.g. ducking effects and effectively switch off the tube. Audio Rate Modulation is also possible here and a bit milder than with the Screen CV, but still effective.

The evocation potentiometer controls the feedback of the second output into the first channel. The sonic performance is very much dependent on the Plate Bias switch. The Plate Bias switch effectively controls the headroom. This allows you to use the tubes in three different settings, from fuzz sound to full distortion.

*This version is equipped with other tubes than in version 1.

Tube length: 55mm

Depth: 45mm

Notes: Expandoor

The Expandoor gets you quickly and simply using AMP's Melody Oracle, Star Song, or Touch Tones (as well as other possible future devices) as a CV and Gate controller. It outputs Eurorack-compatible CV and GATE signals, transforming your AMP device into a versatile and novel modular synth sequencer or controller. The Expandoor can be used as a standalone tabletop box, or mounted in a 3U 10HP rack space.

Three independent GATE outputs:

Just as the three "Register" zones on your AMP device gate the audio for the three octaves of the built-in synthesizer, there are three corresponding gate outputs on the Expandoor. The 1/8" jacks labelled "BS" "LH" and "RH" output ~11V DC gate signals whenever those zones are gating "ON" on your AMP device.

CV output, tuners and LED indicators:

The jack labelled "CV" outputs a tuned set of CV values (0-11V), tuned independently but correspondingly, to the set of tuners on your AMP device. The row of multi-turn tuners on the front panel allow fine tuning of each CV state. One tuner is active at a time, depending on the state of the "INTERVAL" zones on your AMP device. The active tuner is conveniently indicated in real time via lights found to the right of the tuners. The indicator lights serve a second function of showing you which tuner on the controlling AMP device is also active in parallel.

AMP LINK jacks

The AMP LINK jack on the bottom left of the front panel (with the arrow pointing IN) connects your controlling AMP device into the EXPANDOOR. Use only shielded CAT 5 or CAT 6 cables and connectors (the correct cables will have metal end connectors). The AMP LINK jack on the right outputs a signal identical to the input, allowing chaining of multiple Expandoors and/or Wave Expanders. Do not plug more than one AMP controlling device into a single Expandoor simultaneously, or damage to the devices could occur.

Each controlling device requires its own Expandoor or Wave Exapnder, but multiple expansion modules can be chained from one controlling device. One potential benefit to chaining expansion modules is the ability to output multiple tuned, corresponding but independent, CV channels. Meaning multiple sets of harmonic values could be tuned and accessed at the command of the single controlling AMP device, or accessed via other modules in your system.

Tech specs:

Input: AMP LINK via shielded CAT5 or CAT6 cable
Power: 12V DC Supplied via AMP LINK
Outputs: 3 Gate (~11V unipolar), 1 CV (variable 0-11V unipolar)
Tuners: 8 multi-turn fine tuners for CV, with indicator lights
Size: 3U 10HP (approximately 5.25" H x 2" W x 1.5" D)

Notes: The 'Stereo Sum' is a unity gain summing mixer that features four stereo input pairs summed as pairs to two independent mix outs or all as a single combined mix. It is a useful utility for efficiently combining outputs of multiple stereo sources, such as the MEGA-TANG and Jumble Henge mixers or multiple MFX returns. The inputs accept stereo or mono signals (via normalisation) which can be audio or CV (module is DC coupled) and the top mixer's outputs are normalised to the bottom mixer section meaning if the upper output is left unpatched the two upper inputs will be added to the lower output.

Stereo input pairs

Stereo inputs. Can be used with audio or CV (inputs are DC coupled).

Left ins normalised to Right for mono signals.

Stereo mix output 1

Stereo mix output. Normalised to bottom mixer section if ouput is left unpatched.

Stereo input pairs

Stereo inputs. Can be used with audio or CV (inputs are DC coupled).
Left ins normalised to Right for mono signals.

Stereo mix output 2

Final stereo mix output.

Technical specifications

Power: +12V 8ma / -12V 8ma
Size: 4HP
Depth: 32mm

Notes: Think of the MFD like a tiny DJ mixer: two stereo inputs, one stereo output, with the option to cue either input and crossfade between the two. A simple idea very well executed.

Supplier's Notes:
Inspired by DJ mixers, the MFD allows you to cue and crossfade between signals. Ideal for live performance as well as jamming out ideas in the studio.

Supplier's Notes:
The 'MFD' is a 2-channel stereo crossfader designed for live DJ-style mixing and jamming in Eurorack. Two mono or stereo inputs are mixed to a single stereo output via direct or voltage control. Additional Cue controls provide preview monitoring of either input pre-mix via dedicated Cue switches and an output.

Voltage control over the crossfade and DC coupling allow for further creative uses such as a high quality stereo VCA or as a mix processor for either stereo audio signals or CV.

The MFD is designed to have very low noise and cross bleed and employs equal power crossfading for smooth constant level blending between signal sources.

Features:

Two channel stereo crossfader with voltage control.
Approx equal power crossfading.
Cue output switches for direct monitoring of either stereo input (pairing well with HPO for headphone monitoring).
Can be used as a high quality stereo VCA.
DC coupled for use with both audio and CV.
Skiff friendly with reverse power protection.
Two year warranty.
Made in England.

Ideal For:

Smoothly blending and monitoring 'tracks' or 'scenes' during a live set.
High quality VCA use for stereo based sources.
Voltage controlled crossfading and mixing of both CV and Audio signals.
Other advanced uses including audio rate modulation, stereo panning effects and a CV controlled FX send.

Technical Specifications

Supply: +12V 70mA / -12V 70mA

Size: 6HP

Depth: 32mm

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


The 'Mega Milton' is a smorgasbord of handy all analogue utilities in just 8HP that will greatly extend the functionality of your Eurorack system.

It includes a stereo line input converter for incorporating line level external sources into a Eurorack system, a fixed 4 input mixer with breakout attenuator for combining signals, a gated slew limiter for adding slides to sequences, a sample and hold with analogue white noise with a myriad of uses such as generative melodies or producing percussive textures and finally a buffered mult for droop free signal distribution with handy LEDs to monitor.

All sections are normalised to help with typical use cases such as generating random CV from the sample & hold section, a smooth random source from the slew output and breaking out a standalone attenuator from the fourth mixer input.

The 'Mega Milton' provides essential classic synthesizer building blocks for patching in any Eurorack system.

Ideal For

Incorporating stereo external sources easily into your Eurorack system.
Signal attenuation and basic mixing in a small space.
Building percussion sounds from an analogue noise source.
Producing clocked random to add interest and variation to patterns and sounds.
Adding gated 303 style slides to patterns.
Creating and Manipulating patterns with Sample and Hold.
Buffering and monitoring voltage across multiple VCOs or other destinations with no drop.

Tech Specs

Supply: +12V 70mA / -12V 70mA
Size: 8HP
Depth: 32mm

Notes: The 'Mega Milton' is a smorgasbord of handy all analogue utilities in just 8HP that will greatly extend the functionality of your Eurorack system.

It includes a stereo line input converter for incorporating line level external sources into a Eurorack system, a fixed 4 input mixer with breakout attenuator for combining signals, a gated slew limiter for adding slides to sequences, a sample and hold with analogue white noise with a myriad of uses such as generative melodies or producing percussive textures and finally a buffered mult for droop free signal distribution with handy LEDs to monitor.

All sections are normalised to help with typical use cases such as generating random CV from the sample & hold section, a smooth random source from the slew output and breaking out a standalone attenuator from the fourth mixer input.

The 'Mega Milton' provides essential classic synthesizer building blocks for patching in any Eurorack system.

Ideal For

Incorporating stereo external sources easily into your Eurorack system.
Signal attenuation and basic mixing in a small space.
Building percussion sounds from an analogue noise source.
Producing clocked random to add interest and variation to patterns and sounds.
Adding gated 303 style slides to patterns.
Creating and Manipulating patterns with Sample and Hold.
Buffering and monitoring voltage across multiple VCOs or other destinations with no drop.

Tech Specs

Supply: +12V 70mA / -12V 70mA
Size: 8HP
Depth: 32mm

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


The BXx2 is a dual channel preamp, EQ and mixer based on the classic Boss BX series mixers. With the inclusion of both input gain and level controls, each channel can be overdriven, producing the signature saturated and lively sound the BX mixers are known for. The EQ controls provide the channels with simple but great sounding high and low shelf EQs for emphasising and shaping sounds and an additional 'Aux' input allows another mixer or extra sound source to be chained in.

Input gain controls

Sets the input gain of the channel preamp. Higher settings will cause source to overdrive the channel.

Inputs

In 1 - Input to channel 1 of the mixer.

In 2 - Input to channel 2 of the mixer.

Aux - Auxillary mix input for chaining with another mixer or extra source.

Fixed gain (-6dB).

EQ High

Sets the gain of the fixed high shelf EQ. Boosts high frequencies when set above 12 o'clock and cuts when set below.

EQ Low

Sets the gain of the fixed low shelf EQ. Boosts low frequencies when set above 12 o'clock and cuts when set below.

Level

Sets the channel level in the mix. Use level controls to trim back volume when overdriving the preamp.

Output

Audio output producing the mix of the 3 inputs.

Technical specifications

Power: +12V 10mA / -12V 10mA
Size: 8HP
Depth: 32mm

The BXx2 was designed in collaboration with Feedback Modules and is based on their single channel 'PRE BX' module.

Notes: The BXx2 is a dual channel preamp, EQ and mixer based on the classic Boss BX series mixers. With the inclusion of both input gain and level controls, each channel can be overdriven, producing the signature saturated and lively sound the BX mixers are known for. The EQ controls provide the channels with simple but great sounding high and low shelf EQs for emphasising and shaping sounds and an additional 'Aux' input allows another mixer or extra sound source to be chained in.

Input gain controls

Sets the input gain of the channel preamp. Higher settings will cause source to overdrive the channel.

Inputs

In 1 - Input to channel 1 of the mixer.

In 2 - Input to channel 2 of the mixer.

Aux - Auxillary mix input for chaining with another mixer or extra source.

Fixed gain (-6dB).

EQ High

Sets the gain of the fixed high shelf EQ. Boosts high frequencies when set above 12 o'clock and cuts when set below.

EQ Low

Sets the gain of the fixed low shelf EQ. Boosts low frequencies when set above 12 o'clock and cuts when set below.

Level

Sets the channel level in the mix. Use level controls to trim back volume when overdriving the preamp.

Output

Audio output producing the mix of the 3 inputs.

Technical specifications

Power: +12V 10mA / -12V 10mA
Size: 8HP
Depth: 32mm

The BXx2 was designed in collaboration with Feedback Modules and is based on their single channel 'PRE BX' module.

Notes: AXON-2 is an 8HP expander module for the SQUID SALMPLE, MFX and Pamela's PRO Workout that like the AXON-1 provides 4 additional freely assignable CV inputs but additionally adds manual offset controls and 2 additional 'performance' buttons.

The addition of AXON-2 increases the Squid, MFX or Pam PRO's total number of CV inputs by 4, greatly increasing the possibilities for vast modular manipulation. Each of the CV inputs includes an offset for hands on control over parameters assigned to CV. Per assignment digital attenuation and offset via the host module is also available for fine tuning the modulation or control over parameters.

The AXON-2's large buttons are great for controlling select functions in a live performance environment or adding convenient quick navigation shortcuts when making edits. The buttons functionality and assignability are dependent on the host module. See respective manuals for details.

NOTE: AXON-2 support requires the latest firmware be installed for Pam Pro (120 or newer), Squid (187 or newer) and MFX (105 or newer).

Features
4 Additional freely assignable CV inputs for the SQUID SALMPLE, MFX or Pamela's PRO Workout
Manual offset knob controls
Two Assignable performance buttons for mutes, tap tempo, navigation, etc (dependant on module)
Powered directly from the module, no additional power header required
Made in England
Skiff friendly
Technical Specifications
Power: Additional approx 10mA on +12V

Size: 8HP

Depth: 38mm

Notes: The Tone Science Triple Cross module is a design collaboration between electronic musician/composer Ian Boddy and AJH Synth.

It features three independant cross fader and panner channels, and it can be used with both audio and CV signals. Each of the channels can be configured in one of four different ways:

1) One In, One out Linear VCA

2) Two in, One out crossfader

3) One in, Two out panner,

4) Two in, Two out cross fader & reversing panner combined.

Audio rate modulation can also be used on the CV inputs to create Ring modulation and Cross modulation type sounds. Each channel has a dedicated Fade control, CV input, and CV Level attenuverter. These can be used together to bias incoming CV signals.

The L1 and L2 outputs from channels 1 and 2 are normalised to channel 3's inputs, which also have their own level controls to balance incoming signals. This allows very interesting, complex fading and panning between four different input sources, to either Mono or Stereo outputs..

The Triple Cross is very versatile, yet relatively simple to understand and use. However, as they say "knowledge is power", so do spend a little time reading about how to configure the channels in the four different modes, and how to combine all three channels together to create a super-powerful Four to Two to One cross fader.
Each of the three channels can be configured in four different ways, and all three can be used simultaneously. They do not all have to be in the same mode, so we could for example use channel 1 as a cross fader, channel 2 as a Panner for completely different signals, and channel 3 as a Linear VCA, again for different signals.

Specifications

Effective CV Range for CV-1, CV-2 and CV-3 is 0 to +5V with attenuverter fully clockwise or 0 to -5V with attenuverter fully anticlockwise.
Maximum permissible CV Range for CV-1, CV-2 and CV-3 is -12 to +12V
IN 1A to IN 3B Input levels -5V to +5V, levels up to +/-10V are possible however some clipping may occur.
Module Width: 14hp
Module Depth: 26mm (Including power lead)
Current Usage: 80mA Positive, 72mA Negative

Notes: Pan and cross fade up to three signals with AJH's versatile Triple Cross. Four different modes allow you to set up the three channels in numerous ways, for both audio and CV processing.

Supplier's Notes:
The Tone Science Triple Cross module is a design collaboration between electronic musician/composer Ian Boddy and AJH Synth.

It features three independant cross fader and panner channels, and it can be used with both audio and CV signals. Each of the channels can be configured in one of four different ways:

1) One In, One out Linear VCA

2) Two in, One out crossfader

3) One in, Two out panner,

4) Two in, Two out cross fader & reversing panner combined.

Audio rate modulation can also be used on the CV inputs to create Ring modulation and Cross modulation type sounds. Each channel has a dedicated Fade control, CV input, and CV Level attenuverter. These can be used together to bias incoming CV signals.

The L1 and L2 outputs from channels 1 and 2 are normalised to channel 3's inputs, which also have their own level controls to balance incoming signals. This allows very interesting, complex fading and panning between four different input sources, to either Mono or Stereo outputs..

The Triple Cross is very versatile, yet relatively simple to understand and use. However, as they say "knowledge is power", so do spend a little time reading about how to configure the channels in the four different modes, and how to combine all three channels together to create a super-powerful Four to Two to One cross fader.
Each of the three channels can be configured in four different ways, and all three can be used simultaneously. They do not all have to be in the same mode, so we could for example use channel 1 as a cross fader, channel 2 as a Panner for completely different signals, and channel 3 as a Linear VCA, again for different signals.

Specifications

Effective CV Range for CV-1, CV-2 and CV-3 is 0 to +5V with attenuverter fully clockwise or 0 to -5V with attenuverter fully anticlockwise.
Maximum permissible CV Range for CV-1, CV-2 and CV-3 is -12 to +12V
IN 1A to IN 3B Input levels -5V to +5V, levels up to +/-10V are possible however some clipping may occur.
Module Width: 14hp
Module Depth: 26mm (Including power lead)
Current Usage: 80mA Positive, 72mA Negative

Notes: The Tone Science Chance Delay is a unique concept in Eurorack modules as it combines chance and randomness, with pulse delay and pulse conditioning. It is a collaboration between electronic musician/composer Ian Boddy and AJH Synth.

It can perform as a Chance generator, but is also capable of pulse stretching for Trigger to Gate conversion, pulse shortening for Gate to Trigger conversion, Gate Delay, Sub Bass Generation and also "divide by n" clock division.

There is a wide range of control and all functions can be operated manually from the front panel or can be automated using external CV voltages. Chance can range between 0 to 100%. The Gate out can be delayed by anywhere between from 0.5mS to 30 Seconds, and the output Pulse length can also vary from 0.5mS to 30 Seconds.

The TRIG push button allows manual triggering of pulses, also determined by the Chance control, and a green LED shows the output pulse status.

Includes a handy "Gate pass through" mode; when the Length control is set to zero the incoming pulse or trigger will still be determined by the Chance and Delay controls, whilst the outgoing gate length will be the same as the incoming gate length.

Compact 8hp form factor and very low power consumption make this an excellent addition to any Eurorack system.

Key features:

Chance, Gate Delay time and Pulse Length can all be set manually or controlled using external CV voltages.

The 'TRIG' push button allows manual triggering, and Chance will be applied to any manual triggering too.

Fast processing allows operation into the lower audio range, so it can perform sub bass generation on drone type sounds. In this mode the Length pot (or an external Length CV) can be used to change the PWM of the output waveform.

After the initial trigger pulse has been acted on, further incoming pulses are ignored until the current cycle has finished. This useful feature allows it to perform "divide by n" division on gate pulses, so it can be used for clock division, and the delay function can be used to add a "swing" away from the rhythm.

Gate pass through mode - if the Length pot is set to zero, then the incoming gate length is preserved, so in this case the gate has Chance and Delay time applied to it, but the outgoing gate length is the same as the incoming gate length.

By setting Chance to 100% and Delay to zero (0.5mS) it can be used as a Gate to Trigger converter, or a Trigger to Gate converter, depending on the Pulse length set with the LENGTH control. We can also use an external Length CV to shorten or increase the length of the output pulse in real time.

Fast and slow ranges for both DELAY time and PULSE length - Fast range is 0.5mS to 2 Sec and Slow Range is 2 Sec to 30 Sec.

Green status LED shows when the output pulse is high.

Front panel controls

Chance Control and CHA Input

This sets the probability of an incoming trigger or gate being passed through to the Pulse Generator circuit. The chance can be set anywhere between 0% and 100%.

The CHA input allows an external control voltage (CV) to control chance remotely. In this mode the Chance control acts as an attenuator for the incoming CV. With the Chance control fully clockwise a CV of +5V will give 100% chance, and lower CV voltages reduce the Chance accordingly. For example, a +2.5V CV will give a 50% chance. The attenuator function is useful if we are using higher control voltages of for example 0 to +10V. If we set the Chance control to the 12 o'clock position it would then halve the incoming CV signal, so in this case +10V will give 100% chance and +5V will give a 50% chance. Negative CV voltages are ignored and will be treated in the same way as zero volts..

Delay Control and DEL Input

This sets the delay amount that is applied to the leading edge of the incoming Gate or trigger received at the IN jack (or a press of the Manual Trigger button), assuming that the "Chance" has been determined to be positive. With the Delay Time switch set to FAST the Delay range will be from 0.5mS to 2 Seconds. With the Delay Time switch set to SLOW the Delay range will be between 2 Seconds and 30 Seconds.

The DEL input allows an external CV voltage to control Delay Time remotely. In this mode the Delay control acts as an attenuator for the incoming CV. With the Delay control fully clockwise a CV of +5V will give the maximum Delay time of either 2 Seconds or 30 seconds depending on the position of the Fast / Slow switch. Lower CV voltages reduce the Delay Time accordingly, so if we apply a CV of zero volts then we will get the minimum Delay time. The attenuator works on any CV patched to the DEL input in the same manner as described for the Chance control.

Length Control and LEN Input

This sets the length, or rather pulse width of the output pulse. With the LENGTH Switch set to FAST the pulse length can be anywhere between 0.5 mS to 2 Seconds. With the LENGTH Switch set to SLOW the pulse length can be between 2 seconds and 30 Seconds.

The LEN input allows an external CV to control Delay Time remotely. In this mode the Length control acts as an attenuator for the incoming CV in the same manner as the Chance and Delay controls.

Setting the Length control to zero invokes "Gate pass through" mode - in this case the incoming gate length is preserved, so the incoming pulse or trigger will still be affected by the Chance and Delay controls, but the outgoing gate length will be the same as the incoming gate length. Turning the Length control slightly clockwise will then invoke the minimum pulse length around control position 1, and further clockwise rotation will increase the Pulse Length as expected. This behaviour also applies to external CV's patched to the LEN input, where a CV of 0V will enable Gate pass through mode.

Fast / Slow mode switches

These switches allow the selection of Fast or Slow mode for Delay time and pulse length, so these ranges can be selected independently for Delay and Length. Fast range is 0.5 mS to 2 Seconds, and Slow range is 2 Seconds to 30 Seconds.

TRIG Switch

The TRIG push button allows manual triggering, and Chance will also be applied to any manual triggering, so depending on the setting of the Chance control, pressing the button has a chance of not doing anything! Holding the button down keeps the incoming gate high for as long as the button is pressed, however this is only really relevant in "Gate pass through" mode - normally only the leading edge of the input pulse is used.

IN - input jack

Connect your input here - a gate, output from an LFO, or even waveforms from a VCO. Any negative component of the input voltage will be ignored, so unipolar or bipolar signals can be used.

OUT - output jack

This outputs the binary pulse (or stream of pulses) that are generated by the Chance Delay circuitry. The gate low level is 0V and gate high level is +6V. The green status LED shows if a pulse is currently being generated.

Module Width: 8hp
Module Depth: 26mm (Including power lead)
Current Usage: 25mA Positive, 6mA Negative

Notes: The Low Fat is a new 2hp Eurorack module by AJH Synth, it's a High Pass filter, with frequency control by either manual pot, and/or external CV with attenuator. It's intended to compliment other filters, particularly low pass VCF modules, in practical tasks such as removing excessive low frequencies, for example when the bass is swamping a mix. It can be switched between 6dB (1 pole) response and 12dB (2 pole) response.

By patching a CV signal to the FCV input it can be voltage-controlled and used musically as with any other VCF. When used in conjunction with a LP filter it forms a fully customisable band pass filter, allowing the range of passbands to be cherry-picked. Feeding in a 1V/Oct pitch CV and setting the FCV pot to a suitable level allows it to track an incoming pitch CV, so the amount of High Pass filtering remains constant as the pitch of the incoming VCOs traverse up and down the frequency range. This can be particularly useful in creating percussive sounds, such as snares and hats, but also on sequenced bass lines. Since it is only 2HP it's a great way to occupy one of those frustrating gaps in your eurorack modular case with something that is deceptively useful, and adds another dimension to the classic bass monster that is the Transistor Ladder Filter.

Dimensions:
2 HP
26 mm deep

Current Draw:
9 mA +12V
12 mA -12V
0 mA 5V

Notes: Two channel USB module.

Standard Mode - Send two channels into your USB device and receive two channels from USB.

Insert Mode - Send two channels to your USB device and get a copy of the sent signal in the outputs.

Toggle between the modes via a pair of jumpers on the back. The USB-B to USB-A cable is provided with the module. Why use the cutting edge USB-B? I felt the jacks were way more sturdy than mounting USB-C jacks vertically.

Expandable - Bartender, Barbacks, DVCA, Cast Iron, Mingles, and USB-2CH can all be connected with Dupont cables (aka female to female breadboard cables) via pin headers on the back of the modules. Connecting the in and out pins will send/receive the audio into the next module.

Width: 4HP
12V: 10mA
-12V: 10mA

Notes: This is an expander for Bartender and Barback, enabling CV control of the level of the send bus of up to 8 channels.

Each section of four jacks has a cable to connect to the mixer modules. To get 4 channels to work with Barback you want to connect it to the last Barback in the chain of two. It will then pass along channels 3 & 4 to the next Barback.

Dimensions
2 HP

Current Draw
Module does not draw current

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


Six segment generator. Looping or one shot envelope generator. Chainable, so it can be expanded to link multiple units.

An exact hardware replica of the Mutable Instruments Stages.

Dimensions
14 HP
25 mm deep

Current Draw
80 mA +12V
20 mA -12V
0 mA 5V

Notes: Six segment generator. Looping or one shot envelope generator. Chainable, so it can be expanded to link multiple units.

An exact hardware replica of the Mutable Instruments Stages.

Dimensions
14 HP
25 mm deep

Current Draw
80 mA +12V
20 mA -12V
0 mA 5V

Notes: Dual three channel voltage controlled panning mixer

Mixer section

Channel 1 and Channel 2 are three channel mixers with potentiometers to control level of three different inputs for each channel. Each channel then has a potentiometer to control panning as well as CV control for panning and level control

Panning and VCA

The VC panners are equal loudness panning and the VCAs for each channel are linear response.

Built-in LFO

There is a built-in LFO that is normalled to the panning CV input of each channel. CH1 gets the standard LFO and CH2 gets an inverse, enabling alternating channel panning. The default is to use a TRI wave for the LFO, but there is a jumper on the back to switch it to SQU.

Width: 12hp
12V: 140mA
-12V: 120mA

Notes: A simple VC panner with CV-controlled level. The left input normals to the right input to give an easy way to add panning to a mono signal.

Expandable

Bartender, Barbacks, DVCA, Cast Iron, Mingles, and USB-2CH can all be connected with Dupont cables (aka female to female breadboard cables) via pin headers on the back of the modules. Connecting the in and out pins will send/receive the audio into the next module.

Width: 4hp
12V: 40mA
-12V: 40mA

Notes: Neatly implemented performance mixer with four stereo channels. CV control of level and pan, two pre- or post-fader stereo send busses, quiet mutes and cueing via a front-panel headphone socket.

Supplier's Notes:
Four channel stereo production mixer

Mixer section

Each channel has the following:

Stereo or mono - Each channel can be treated as a stereo channel or a mono channel with two summed inputs.

CV inputs for both panning and level control

Two send buses - You can route each channel to one of two send buses. Each send bus is stereo. You can choose if you want the send to come before or after the level/panning controls.

Mute - The mute has both latching mute (up) and a momentary mute (down). The mute uses a capacitor to slow the turn off and on of the mute action. So it is mostly click-less, but you may find an occasional pop.

Cue bus - You can route each channel to the cue bus.

Mains Section

Two stereo sends outputs
Two stereo returns - which can also be used to directly insert into the main mix.
Main stereo outputs - level controlled with the slider and stereo VU meter.
Main mono output - summed output of the main L&R. If you are after an 8ch mono mix, you can use each channel in stereo mode, use the level control to control the level and then pan control to control the levels of the two channels.

Cue Section

1/4" Headphone jack along with level control
Fader control to listen to the main mix, cue mix, or an adjustable mix of the two.
Expandable

Bartenders can be cascaded to create 8ch, 12ch, or 16ch mixer. The main level is what is sent the main level control can act as a group control.

Barbacks can be added to add 2ch to your mix. Barbacks can also be cascaded enabling up to a 16ch mixer configuration.

Send-VCA can be added for CV control of the level of the send.

DVCA, Cast Iron, Mingles, and USB-2CH can all be connected with Dupont cables (aka female to female breadboard cables) via pin headers on the back of the modules. Connecting the in and out pins will send/receive the audio into the next module.

Width: 24hp
12V: 260mA
-12V: 225mA

Notes: Two channel expander for Bartender

Mixer section

Each channel has the following:

Stereo or mono - Each channel can be treated as a stereo channel or a mono channel with two summed inputs.

CV inputs for both panning and level control

Two send buses - You can route each channel to one of two send buses. Each send bus is stereo. You can choose if you want the send to come before or after the level/panning controls.

Mute - The mute has both latching mute (up) and a momentary mute (down). The mute uses a capacitor to slow the turn off and on of the mute action. So it is mostly click-less, but you may find an occasional pop.

Cue bus - You can route each channel to the cue bus.

Expandable Mixer Series

Bartenders can be cascaded to create 8ch, 12ch, or 16ch mixer. The main level is what is sent the main level control can act as a group control.

Barbacks can be added to add 2ch to your mix. Barbacks can also be cascaded enabling up to a 16ch mixer configuration.

Send-VCA can be added for CV control of the level of the send.

DVCA, Cast Iron, Mingles, and USB-2CH can all be connected with Dupont cables (aka female to female breadboard cables) via pin headers on the back of the modules. Connecting the in and out pins will send/receive the audio into the next module.

Width: 10hp
12V: 125mA
-12V: 100mA

Notes: The CVADDER-HQ is a precision adder especially for adding 1V/octave (pitch-controlling) CVs. This makes it possible e.g. to transpose a sequence. Compared to general purpose CV mixers (like POLAMIX), this module does the summing of the CVs very precise (within a few millivolts), so the desired pitch is not affected.

The module offers four CV inputs where three of them are summed, and the CV at the fourth input is subtracted - meaning "transposition downwards".

This module also allows transposing the incoming CV by one or two octaves or a variable offset by buttons.

A separate output provides the voltage of the internal transposition (+1, +2 octaves / free).

If the transposition buttons are not necessary and you prefer to have a dual precision adder, take a look at the 2CVADD-HQ module.

Notes: The 2CVADD-HQ is a dual precision adder especially for adding 1V/octave (pitch-controlling) CVs. This makes it possible e.g. to transpose a sequence. Compared to general purpose CV mixers (like POLAMIX), this module does the summing of the CVs very precise (within a few millivolts), so the desired pitch is not affected.

The module offers three CV inputs for each of the both units; the first unit has an additional fourth input where the CV is subtracted - meaning "transposition downwards".

If you would like to have transposition buttons to shift by one or two octaves (or a free offset), take a look at the CVADDER-HQ module.