Synth modules

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


Compact take on the Bitbox sampler, also offered as the larger Mk2 version. Touchscreen-based design allowing up to eight stereo samples, recording directly or loaded from SD card.

Supplier notes:
Bitbox micro provides Eurorack sampling for smaller racks and smaller budgets. In only 18 HP of rack space you can get a touch screen based sampler with support for 8 stereo sample pads. Now you can record samples directly into the module or load them from the microSD card. Trigger your samples via CV or MIDI, then apply effects and mix the outputs. Save your configurations to multiple presets for later reuse.

Sample Playback

Play up to 24 stereo polyphonic notes when your samples fit in the 64 MB of internal memory or up to 8 larger stereo samples streaming directly from the microSD card
Configure 8 stereo sample pads per preset as single or multi-samples, clips, slicers, granular or new recordings
Stream long samples from the microSD card with a max sample size of 4 GB, which can be many hours of audio
Trigger samples with the touch screen, CV gate inputs, or MIDI input
Control how samples start and stop by choosing from one-shot, toggle, and gate launch modes
Tweak playback through a variety of sample parameters, including start position, length, pitch, gain, filter, loop mode, launch quantization, ADSR, Exclusive Grouping, clip synchronization, slice placement and sequencing, grain size, grain spread, grain count, and MIDI note and channel mapping

Sample Recording

Record Eurorack level audio straight into the module:

Record samples from a stereo audio input pair
Configure each pad for stereo or mono recording with the option to synchronize the start and stop times to clock inputs
Trigger recording via audio level threshold
Create perfectly sized loops by setting the recording length
Enable immediate playback after recording for live looping capabilities
Make recordings up to 4 hours in length
Resample the master output without patching
Automate recording of a multi-sample bank via MIDI and CV
Store recorded samples as WAV files on the micro SD card then remove the card to transfer them to your computer

Sample Modes
Find creative ways of using your samples with our 5 sample playback modes:

Trigger one shots or launch loops using sample mode
Load a folder of samples into a sample mode pad to improve the quality of the pitch shifting when playing a sample chromatically or to trigger different samples with each note
Play time-synchronized loops with constant pitch time shifting in clip mode
Skip between slices of a WAV using slicer mode
Create rich textures and other worldly sounds with granular mode

Inputs and Outputs
Use the 8 inputs the way you want: assignments include a stereo audio input, up to 8 gate inputs, up to 8 CV inputs and 1 clock input.
Route the audio from each pad out to one of 3 stereo audio outputs or one of 6 mono audio outputs
Listen to all of the pad outputs combined on the master stereo output

External Control and Synchronization
Playback can be immediate or synchronized to internal clock, TRS clock in, or MIDI clock in and out
Confidently connect with both TRS MIDI Type A and Type B, no adapter needed
Play a single or multi-sample pad pitch shifted using MIDI notes or CV
Trigger different sample slices using MIDI notes or CV
Modulate a wide variety of sample parameters through the MIDI input and up to 8 CV signals
Quickly set up MIDI modulation using Learn mode - no need to look up CC numbers
Module Features
Use the 2? diagonal touch screen to intuitively explore the features of the module
Get more creative with double the processing power of the original bitbox
Refine your sound with reverb and delay
Import or export WAV files with your Mac or PC using a microSD card
Save and recall multiple presets
Increase your capacity with larger microSD cards
Inputs and outputs are DC coupled so you can record and play out CV signals

Notes: Black version of Bitbox's excellent sampling module. Touchscreen-based design allowing up to eight stereo samples, recording directly or loaded from SD card.

Supplier's Notes:
Bitbox micro provides Eurorack sampling for smaller racks and smaller budgets. In only 18 HP of rack space you can get a touch screen based sampler with support for 8 stereo sample pads. Now you can record samples directly into the module or load them from the microSD card. Trigger your samples via CV or MIDI, then apply effects and mix the outputs. Save your configurations to multiple presets for later reuse.

Powerful Sampling Capabilities in a Smaller Form Factor

With the sampling features of Bitbox micro you can add interesting new ways of generating sound and music to your Eurorack. Trigger one shots, play time synched loops or record live looping. Bitbox micro is equally at home in your studio or as a component of your live performance.

Features

Sample Playback
Play up to 24 stereo polyphonic notes when your samples fit in the 64 MB of internal memory or up to 8 larger stereo samples streaming directly from the microSD card
Configure 8 stereo sample pads per preset as single or multi-samples, clips, slicers, granular or new recordings
Stream long samples from the microSD card with a max sample size of 4 GB, which can be many hours of audio
Trigger samples with the touch screen, CV gate inputs, or MIDI input
Control how samples start and stop by choosing from one-shot, toggle, and gate launch modes
Tweak playback through a variety of sample parameters, including start position, length, pitch, gain, filter, loop mode, launch quantization, ADSR, Exclusive Grouping, clip synchronization, slice placement and sequencing, grain size, grain spread, grain count, and MIDI note and channel mapping

Sample Recording

Record Eurorack level audio straight into the module:
Record samples from a stereo audio input pair
Configure each pad for stereo or mono recording with the option to synchronize the start and stop times to clock inputs
Trigger recording via audio level threshold
Create perfectly sized loops by setting the recording length
Enable immediate playback after recording for live looping capabilities
Make recordings up to 4 hours in length
Resample the master output without patching
Automate recording of a multi-sample bank via MIDI and CV
Store recorded samples as WAV files on the micro SD card then remove the card to transfer them to your computer

Sample Modes

Find creative ways of using your samples with our 5 sample playback modes:
Trigger one shots or launch loops using sample mode
Load a folder of samples into a sample mode pad to improve the quality of the pitch shifting when playing a sample chromatically or to trigger different samples with each note
Play time-synchronized loops with constant pitch time shifting in clip mode
Skip between slices of a WAV using slicer mode
Create rich textures and other worldly sounds with granular mode

Inputs and Outputs

Use the 8 inputs the way you want: assignments include a stereo audio input, up to 8 gate inputs, up to 8 CV inputs and 1 clock input.
Route the audio from each pad out to one of 3 stereo audio outputs or one of 6 mono audio outputs
Listen to all of the pad outputs combined on the master stereo output
Inputs and outputs are DC coupled so you can record and play out CV signals
External Control and Synchronization
Playback can be immediate or synchronized to internal clock, TRS clock in, or MIDI clock in and out
Confidently connect with both TRS MIDI Type A and Type B, no adapter needed
Play a single or multi-sample pad pitch shifted using MIDI notes or CV
Trigger different sample slices using MIDI notes or CV
Modulate a wide variety of sample parameters through the MIDI input and up to 8 CV signals
Quickly set up MIDI modulation using Learn mode i no need to look up CC numbers

Module Features

Use the 2" diagonal touch screen to intuitively explore the features of the module
Get more creative with double the processing power of the original bitbox
Refine your sound with reverb and delay
Import or export WAV files with your Mac or PC using a microSD card
Save and recall multiple presets
Increase your capacity with larger microSD cards
Compare to Our Other Samplers
Our Sampler Selection Guide shows you how bitbox micro compares to our other samplers.

What Is Included

When you purchase bitbox micro, you will receive:

a bitbox micro Eurorack module
a microSD card with a bank of demo presets and samples loaded on it
a Eurorack power cable
a bitbox micro Quick Start guide
a MIDI Adapter
Firmware Updates
Get new features by downloading firmware updates from forum.1010music.com.

Documentation and Video Tutorials

The Bitbox Micro Support page has links to videos, the quick start guide and the full user manual to get you up and running quickly and answer your detailed questions. If you can't find answers there, reach out to the community with questions on the 1010 Music forum.

Notes: Compact take on the Bitbox sampler, also offered as the larger Mk2 version. Touchscreen-based design allowing up to eight stereo samples, recording directly or loaded from SD card.

Supplier notes:
Bitbox micro provides Eurorack sampling for smaller racks and smaller budgets. In only 18 HP of rack space you can get a touch screen based sampler with support for 8 stereo sample pads. Now you can record samples directly into the module or load them from the microSD card. Trigger your samples via CV or MIDI, then apply effects and mix the outputs. Save your configurations to multiple presets for later reuse.

Sample Playback

Play up to 24 stereo polyphonic notes when your samples fit in the 64 MB of internal memory or up to 8 larger stereo samples streaming directly from the microSD card
Configure 8 stereo sample pads per preset as single or multi-samples, clips, slicers, granular or new recordings
Stream long samples from the microSD card with a max sample size of 4 GB, which can be many hours of audio
Trigger samples with the touch screen, CV gate inputs, or MIDI input
Control how samples start and stop by choosing from one-shot, toggle, and gate launch modes
Tweak playback through a variety of sample parameters, including start position, length, pitch, gain, filter, loop mode, launch quantization, ADSR, Exclusive Grouping, clip synchronization, slice placement and sequencing, grain size, grain spread, grain count, and MIDI note and channel mapping

Sample Recording

Record Eurorack level audio straight into the module:

Record samples from a stereo audio input pair
Configure each pad for stereo or mono recording with the option to synchronize the start and stop times to clock inputs
Trigger recording via audio level threshold
Create perfectly sized loops by setting the recording length
Enable immediate playback after recording for live looping capabilities
Make recordings up to 4 hours in length
Resample the master output without patching
Automate recording of a multi-sample bank via MIDI and CV
Store recorded samples as WAV files on the micro SD card then remove the card to transfer them to your computer

Sample Modes
Find creative ways of using your samples with our 5 sample playback modes:

Trigger one shots or launch loops using sample mode
Load a folder of samples into a sample mode pad to improve the quality of the pitch shifting when playing a sample chromatically or to trigger different samples with each note
Play time-synchronized loops with constant pitch time shifting in clip mode
Skip between slices of a WAV using slicer mode
Create rich textures and other worldly sounds with granular mode

Inputs and Outputs
Use the 8 inputs the way you want: assignments include a stereo audio input, up to 8 gate inputs, up to 8 CV inputs and 1 clock input.
Route the audio from each pad out to one of 3 stereo audio outputs or one of 6 mono audio outputs
Listen to all of the pad outputs combined on the master stereo output

External Control and Synchronization
Playback can be immediate or synchronized to internal clock, TRS clock in, or MIDI clock in and out
Confidently connect with both TRS MIDI Type A and Type B, no adapter needed
Play a single or multi-sample pad pitch shifted using MIDI notes or CV
Trigger different sample slices using MIDI notes or CV
Modulate a wide variety of sample parameters through the MIDI input and up to 8 CV signals
Quickly set up MIDI modulation using Learn mode - no need to look up CC numbers
Module Features
Use the 2? diagonal touch screen to intuitively explore the features of the module
Get more creative with double the processing power of the original bitbox
Refine your sound with reverb and delay
Import or export WAV files with your Mac or PC using a microSD card
Save and recall multiple presets
Increase your capacity with larger microSD cards
Inputs and outputs are DC coupled so you can record and play out CV signals

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


Compact take on the Bitbox sampler, also offered as the larger Mk2 version. Touchscreen-based design allowing up to eight stereo samples, recording directly or loaded from SD card.

Supplier notes:
Bitbox micro provides Eurorack sampling for smaller racks and smaller budgets. In only 18 HP of rack space you can get a touch screen based sampler with support for 8 stereo sample pads. Now you can record samples directly into the module or load them from the microSD card. Trigger your samples via CV or MIDI, then apply effects and mix the outputs. Save your configurations to multiple presets for later reuse.

Sample Playback

Play up to 24 stereo polyphonic notes when your samples fit in the 64 MB of internal memory or up to 8 larger stereo samples streaming directly from the microSD card
Configure 8 stereo sample pads per preset as single or multi-samples, clips, slicers, granular or new recordings
Stream long samples from the microSD card with a max sample size of 4 GB, which can be many hours of audio
Trigger samples with the touch screen, CV gate inputs, or MIDI input
Control how samples start and stop by choosing from one-shot, toggle, and gate launch modes
Tweak playback through a variety of sample parameters, including start position, length, pitch, gain, filter, loop mode, launch quantization, ADSR, Exclusive Grouping, clip synchronization, slice placement and sequencing, grain size, grain spread, grain count, and MIDI note and channel mapping

Sample Recording

Record Eurorack level audio straight into the module:

Record samples from a stereo audio input pair
Configure each pad for stereo or mono recording with the option to synchronize the start and stop times to clock inputs
Trigger recording via audio level threshold
Create perfectly sized loops by setting the recording length
Enable immediate playback after recording for live looping capabilities
Make recordings up to 4 hours in length
Resample the master output without patching
Automate recording of a multi-sample bank via MIDI and CV
Store recorded samples as WAV files on the micro SD card then remove the card to transfer them to your computer

Sample Modes
Find creative ways of using your samples with our 5 sample playback modes:

Trigger one shots or launch loops using sample mode
Load a folder of samples into a sample mode pad to improve the quality of the pitch shifting when playing a sample chromatically or to trigger different samples with each note
Play time-synchronized loops with constant pitch time shifting in clip mode
Skip between slices of a WAV using slicer mode
Create rich textures and other worldly sounds with granular mode

Inputs and Outputs
Use the 8 inputs the way you want: assignments include a stereo audio input, up to 8 gate inputs, up to 8 CV inputs and 1 clock input.
Route the audio from each pad out to one of 3 stereo audio outputs or one of 6 mono audio outputs
Listen to all of the pad outputs combined on the master stereo output

External Control and Synchronization
Playback can be immediate or synchronized to internal clock, TRS clock in, or MIDI clock in and out
Confidently connect with both TRS MIDI Type A and Type B, no adapter needed
Play a single or multi-sample pad pitch shifted using MIDI notes or CV
Trigger different sample slices using MIDI notes or CV
Modulate a wide variety of sample parameters through the MIDI input and up to 8 CV signals
Quickly set up MIDI modulation using Learn mode - no need to look up CC numbers
Module Features
Use the 2? diagonal touch screen to intuitively explore the features of the module
Get more creative with double the processing power of the original bitbox
Refine your sound with reverb and delay
Import or export WAV files with your Mac or PC using a microSD card
Save and recall multiple presets
Increase your capacity with larger microSD cards
Inputs and outputs are DC coupled so you can record and play out CV signals

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


Bitbox delivers recording, clip launching, and looping in a musically intelligent way. With a 24-bit audio path, you can capture and play samples with impeccable audio quality. With clock and MIDI inputs, you can create loops pre-cut to bars or beats and launch clips with similar synchronization. Bitbox has a capacitive touch screen that makes easy work of tweaking, browsing, and loading sounds from microSD card.

Notes: Quirky little bundle of 2hp's best effects modules, racked in a lunchbox with built-in power supply. Use it as a standalone effects case or add more modules to the empty slots.

Supplier's Notes:
The ultimate effects send to bring your sounds to life. With DSP onboard each effect, high fidelity processing can turn your dry sound into an ethereal sonic landscape using our most popular effects modules.

Notes: Really smart integration of macro controls for Eurorack, based on the original design by Emblematic Systems. Assign settings to eight CV outputs then morph with the crossfader or record movements to manage presets or set up complex real-time modulation. Can also operate as Catalyst Sequencer.

Supplier's Notes:
The Catalyst Controller is a macro controller with eight precision CV outputs and a responsive crossfader to morph between scenes. A scene is a snapshot of up to eight CV outputs, like a modular preset. Traverse a "pathway" composed of multiple scenes using the crossfader or an external CV signal, or immediately jump using the scene buttons. Record CV and slider movements, and play recordings back via a button or external trigger.

Each output has sub-millivolt precision and a maximum range of -5V to +10V. Channels have an adjustable morphing curve, can be quantized to common scales, restricted to a particular voltage range, or set to output gates.

Whether used as a CV preset manager, seamless transition generator, chord sequencer, CV recorder, or experimental CV playground, the Catalyst Controller puts control of your modular at your fingertips.

The Catalyst Controller can also turn into a Catalyst Sequencer! Hold down a special button combination to change between controller and sequencer modes. If you end up liking the Sequencer more, you can even remove the double-sided faceplate, flip it over, and re-install with the Sequencer artwork visible.

Based on the original Catalyst module from Emblematic Systems.

Specifications:

Smooth, responsive crossfade morphs between scenes
Eight output channels, each can be CV or Gate
Arrange scenes into pathways of up to 64 scenes
Smooth, responsive crossfader morphs from scene to scene along the pathway
Set slew/lag to limit how fast scenes can change
Adjustable Morph time per output
Control crossfading with an external CV
Record and playback up to 20 seconds of CV and crossfader motion
CV outputs can be set to -5V to +10V maximum, or limited to +/-5V, +5V, +3V, or +1V
CV outputs can be unquantized (sub-1mV resolution), or Quantized to common scales
Randomization of channel values/gates
Copy/paste
Based on the original Catalyst from Emblematic Systems

Pairs with: 4ms Catalyst Sequencer

Notes: The Catalyst Sequencer combines a traditional clocked step-sequencer with an unconventional phase-based sequencer to produce a new paradigm in sequencing. Eight precision CV sequencer channels can be simultaneously driven by a clock, a phase CV, or scrubbed manually with the crossfader.

Each of the eight channels has its own sequence length, quantizer, transposition, clock divider, randomization, voltage range (max -5V to +10V), and selectable CV (precise 16-bit resolution) or Gate mode.

Phase-based sequencing is an advanced form of sequencing where each step is selected by CV. The Catalyst Sequencer has a smooth, responsive crossfader that scrubs the sequence, playing it forward or backwards to track your motions. Patching in a CV signal will do the same: a ramp-up CV plays the sequence forwards, a ramp-down plays it backwards, a triangle plays it ping-pong, and complex waveforms generate new interesting rhythmic and melodic patterns.

The Catalyst Sequencer can also turn into a Catalyst Controller! Hold down a special button combination to change between sequencer and macro controller modes. If you end up liking the Controller more, you can even remove the double-sided faceplate, flip it over, and re-install with the Controller artwork visible.

Based on the original Catalyst module from Emblematic Systems.

Pairs with: 4ms Catalyst Controller

Notes: Announcing the Dual Looping Delay from 4ms Company, designed by Gary Hall!

The 4ms Dual Looping Delay (or DLD) is an advanced audio processor for creative synthesis. Not a tape or analog emulation but a modern crystal-clear digital delay, the DLD combines features of delay, looping, and sample-tight synchronization for powerful and dynamic sound capture and modification. The DLD is designed to integrate seamlessly with modular time-base and sequencing devices such as the 4ms Quad Clock Distributor (QCD), etc.

What is a "Looping Delay"?
Modern looping devices grew directly from hardware digital delays of the late 70s and early 80s. A looping delay, modelled on units such as the classic Lexicon PCM42, has the very long storage times associated with dedicated looping, but without triggered record and playback functions.

By default, a looping delay records and plays continuously, though recording can be suspended at any time with Infinite Repeat. Sustain of delays and loops is mainly accomplished with regeneration, allowing an organic, evolving approach to sound creation as new material replaces old, more or less gradually. The 4ms Dual Looping Delay also provides advanced clock input and output facilities that allow for locking delayed and looped material with sequencers and rhythm devices of all descriptions.

The 4ms Dual Looping Delay is conceived and designed by Gary Hall. Implemented and manufactured by 4ms Company

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


The Dual Looping Delay (DLD), designed by 4ms and Gary Hall, is an advanced audio processor for creative synthesis. Not a tape or analog emulation but a modern crystal-clear digital delay, the DLD combines features of delay, looping, and sample-tight synchronization for powerful and dynamic sound capture and modification. The DLD is designed to integrate seamlessly with modular timebase and sequencing devices such as the 4ms Quad Clock Distributor (QCD), etc.

What is a "Looping Delay"?
Modern looping devices grew directly from hardware digital delays of the late 70s and early 80s. A looping delay, modelled on units such as the classic Lexicon PCM42, has the very long storage times associated with dedicated looping, but without triggered record and playback functions.
By default, a looping delay records and plays continuously, though recording can be suspended at any time with Infinite Repeat. Sustain of delays and loops is mainly accomplished with regeneration, allowing an organic, evolving approach to sound creation as new material replaces old, more or less gradually. The 4ms Dual Looping Delay also provides advanced clock input and output facilities that allow for locking delayed and looped material with sequencers and rhythmic devices.

New features in firmware version 5:

Ping Lock for each channel
Quantized Inf/Rev/Time Change Mode
24-bit audio (selectable with a jumper)
Reverse and Inf Hold can be toggled with gates or triggers
Delay Feed knob can be selected to be audio or linear taper
Runaway DC at high feedback settings (e.g. resonant delays) is eliminated
Auto-Muting now has a 1ms attack and decay
Cross-fade Time (CFT) for splices is now variable (set in System Mode from 0ms to 500ms)
Selection of External Clock De-jittering algorithms to allow the DLD to sync with many types of external clocks
Exiting Infinite Hold plays through, without restarting loop

Electrical and Mechanical Specifications:

Module size:

20 HP Eurorack format module
0.98" (25mm) maximum depth with power cable

Power consumption:
+12V rail: 188mA max (jumper set to 5V)
-12V rail: 48mA max
+5V rail: not used

Connect red stripe of power cable towards the bottom of the module, which is marked with a white stripe and the words -12V and POWER
Audio Inputs:
0Hz (DC) to 24kHz
16.8V peak-to-peak maximum before clipping (when AC coupled)
Optional jumper to choose DC or AC coupling on input.

Audio Outputs:
0Hz (DC) to 24kHz with maximum -1.7dB difference between input and output (see technical specification section)
+10.5V to -10.5V maximum output
Soft limiting compression allows for saturation before clipping (can be disabled)

Clock outputs (Main, Loop A, Loop B):
0V to 8.2V
+/- 2.4us maximum jitter (i.e. 0.001% at 120 BPM)
Rise or Fall time: <1us
Pulse Width (Trigger mode) 22ms
Gate mode 50% (square wave)
At clock speeds faster than 22Hz, the clock output becomes 50% duty cycle

Included with the DLD:
16-to-16 pin power cable
4 M3 Knurlie screws

Notes: The Dual Looping Delay (DLD), designed by 4ms and Gary Hall, is an advanced audio processor for creative synthesis. Not a tape or analog emulation but a modern crystal-clear digital delay, the DLD combines features of delay, looping, and sample-tight synchronization for powerful and dynamic sound capture and modification. The DLD is designed to integrate seamlessly with modular timebase and sequencing devices such as the 4ms Quad Clock Distributor (QCD), etc.

What is a "Looping Delay"?
Modern looping devices grew directly from hardware digital delays of the late 70s and early 80s. A looping delay, modelled on units such as the classic Lexicon PCM42, has the very long storage times associated with dedicated looping, but without triggered record and playback functions.
By default, a looping delay records and plays continuously, though recording can be suspended at any time with Infinite Repeat. Sustain of delays and loops is mainly accomplished with regeneration, allowing an organic, evolving approach to sound creation as new material replaces old, more or less gradually. The 4ms Dual Looping Delay also provides advanced clock input and output facilities that allow for locking delayed and looped material with sequencers and rhythmic devices.

New features in firmware version 5:

Ping Lock for each channel
Quantized Inf/Rev/Time Change Mode
24-bit audio (selectable with a jumper)
Reverse and Inf Hold can be toggled with gates or triggers
Delay Feed knob can be selected to be audio or linear taper
Runaway DC at high feedback settings (e.g. resonant delays) is eliminated
Auto-Muting now has a 1ms attack and decay
Cross-fade Time (CFT) for splices is now variable (set in System Mode from 0ms to 500ms)
Selection of External Clock De-jittering algorithms to allow the DLD to sync with many types of external clocks
Exiting Infinite Hold plays through, without restarting loop

Electrical and Mechanical Specifications:

Module size:

20 HP Eurorack format module
0.98" (25mm) maximum depth with power cable

Power consumption:
+12V rail: 188mA max (jumper set to 5V)
-12V rail: 48mA max
+5V rail: not used

Connect red stripe of power cable towards the bottom of the module, which is marked with a white stripe and the words -12V and POWER
Audio Inputs:
0Hz (DC) to 24kHz
16.8V peak-to-peak maximum before clipping (when AC coupled)
Optional jumper to choose DC or AC coupling on input.

Audio Outputs:
0Hz (DC) to 24kHz with maximum -1.7dB difference between input and output (see technical specification section)
+10.5V to -10.5V maximum output
Soft limiting compression allows for saturation before clipping (can be disabled)

Clock outputs (Main, Loop A, Loop B):
0V to 8.2V
+/- 2.4us maximum jitter (i.e. 0.001% at 120 BPM)
Rise or Fall time: <1us
Pulse Width (Trigger mode) 22ms
Gate mode 50% (square wave)
At clock speeds faster than 22Hz, the clock output becomes 50% duty cycle

Included with the DLD:
16-to-16 pin power cable
4 M3 Knurlie screws

Notes: The Shaped Dual EnvVCA is a two-channel analogue envelope generator with waveshapers and a stereo linear VCA. Unlike conventional analogue envelope modules, the waveform of each envelope can be controlled with a slider or CV without changing the envelope timing. With a wide time range from an hour to 2.5kHz, and a plethora of CV inputs and attenuverters, it can be used as an LFO, audio-rate oscillator, slew limiter, waveshaper, ASR/ADSR/complex EG, independent audio/CV VCA, envelope follower, sidechain processor, and general utility module. Each channel has dedicated linear outputs plus attenuverters and offset controls for the variable waveshape outputs, making it an ideal modulation source and stereo VCA.

100% analogue

Shaped Dual EnvVCA

20HP Eurorack format module
0.95" (24mm) maximum depth (includes power cable)
10-pin Eurorack power header

Power consumption
+12V: 255mA
-12V: 230mA

Audio/VCA
100k input impedance, 1k output impedance, DC-coupled
VCA gain range: -90dB to +2.0dB, linear response to CV from 0V to 5V
VCA unity gain: 4.4V CV
DC to 20kHz, +/-0.1dB

Envelope Times
Minimum rise or fall time: ~200us per segment (2.5kHz max frequency)
Maximum rise time: >20 minutes (typically > 40 minutes)
Maximum fall time: >12 minutes (typically > 20 minutes)

Jacks:
Env jack: Min = -10.2V, Max = +10.1V, maximum amplitude 9.3Vpp
Trigger jack: rising edge threshold = 1.25V
Follow jack: active range = 0V to +5V

EO* jacks:
EOR (channel A): <80mV low to >4.50V high gate output
EOF (channel B): <80mV low to >4.95V high gate output
Minimum stable pulse width: 1ms. Shorter than this may produce extra 50us pulses
Audio In/Out jacks: -10V to +10V maximum range without clipping

Notes: The Spectral Multiband Resonator from 4ms Company is an innovative resonant filter which can process audio like a classic filter bank, ring like a marimba when plucked/struck, vocode, re-mix tracks, harmonize, output spectral data, quantize audio to scales, and much more...
A gorgeous ring of colored lights displays the frequency of each filter, as well as the levels and current scale selection(s).

At a glance, the SMR works like a normal six-band graphic EQ: six frequency band-pass filters are mixed together using sliders. Resonance/Q is variable, which changes the "ringy-ness" or width of the bands.

But here's where comparison stops. The frequency of each channel is treated like a note in a scale, and the six bands form a chord. Spin the Rotate knob and the "notes" circle around the scale, rotating back to the bottom once they've reached the top. Adjust Spread and the distance (interval) between each note changes. Triggers for up/down motion, CV inputs for sequencing and scale selection allow for flexible control with external modules. Morph, which automatically cross-fades between frequencies, together with variable Slew allows rhythmic clocks drive the SMR as a variable-speed evolving resonant filter.

At maximum Resonance/Q, the SMR can be struck like a gong or marimba by inputting clocks or triggers. The frequency of each channel is quantized to a scale: beautiful chords, ethereal tones and eerie ambiance flows easily. With lower resonance, the SMR can pull out particular frequency bands, and sweep these across the spectrum.

Two 1V/octave Frequency jacks allow for tracking even and/or odd bands and creating floating melodies over evolving chord bases, or complex percussive membrane sounds.

Save your settings into one of six storage banks, and recall on the fly. On startup, the SMR instantly jumps to the last saved settings. The color scheme of the lights can be adjusted, so if you prefer all white lights on your modular, you can have that (or all red, or rainbows, pastels, etc..)!

Advanced features:
- Program your own scale. The frequency of each of the 20 notes can be assigned by setting the octave, the semi-tone, and coarse and fine micro-tone. Up to 11 scales can be saved permanently in the user bank
- Adjust color scheme of the LEDs. Pick a pre-programmed color scheme or create your own using the sliders to set Red/Green/Blue values. Custom color schemes can be saved permanently
- Save your settings in one of six parameter banks. Note position, scale and bank selection, Q value, Lock settings and color scheme can be saved and recalled on the fly. On startup, the SMR loads settings from the last saved bank.
- Optional alternative filter type for a more exponential decay when plucked and different timbral qualities. Freq jacks no longer track 1V/oct in this mode.
- Slider LEDs can be assigned to display level for each channel (combination of slider position and CV on the jack), or clipping for each channel.

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


The Spectral Multiband Resonator from 4ms Company is an innovative resonant filter which can process audio like a classic filter bank, ring like a marimba when plucked/struck, vocode, re-mix tracks, harmonize, output spectral data, quantize audio to scales, and much more...
A gorgeous ring of colored lights displays the frequency of each filter, as well as the levels and current scale selection(s).

At a glance, the SMR works like a normal six-band graphic EQ: six frequency band-pass filters are mixed together using sliders. Resonance/Q is variable, which changes the "ringy-ness" or width of the bands.

But here's where comparison stops. The frequency of each channel is treated like a note in a scale, and the six bands form a chord. Spin the Rotate knob and the "notes" circle around the scale, rotating back to the bottom once they've reached the top. Adjust Spread and the distance (interval) between each note changes. Triggers for up/down motion, CV inputs for sequencing and scale selection allow for flexible control with external modules. Morph, which automatically cross-fades between frequencies, together with variable Slew allows rhythmic clocks drive the SMR as a variable-speed evolving resonant filter.

At maximum Resonance/Q, the SMR can be struck like a gong or marimba by inputting clocks or triggers. The frequency of each channel is quantized to a scale: beautiful chords, ethereal tones and eerie ambiance flows easily. With lower resonance, the SMR can pull out particular frequency bands, and sweep these across the spectrum.

Two 1V/octave Frequency jacks allow for tracking even and/or odd bands and creating floating melodies over evolving chord bases, or complex percussive membrane sounds.

Save your settings into one of six storage banks, and recall on the fly. On startup, the SMR instantly jumps to the last saved settings. The color scheme of the lights can be adjusted, so if you prefer all white lights on your modular, you can have that (or all red, or rainbows, pastels, etc..)!

Advanced features:
- Program your own scale. The frequency of each of the 20 notes can be assigned by setting the octave, the semi-tone, and coarse and fine micro-tone. Up to 11 scales can be saved permanently in the user bank
- Adjust color scheme of the LEDs. Pick a pre-programmed color scheme or create your own using the sliders to set Red/Green/Blue values. Custom color schemes can be saved permanently
- Save your settings in one of six parameter banks. Note position, scale and bank selection, Q value, Lock settings and color scheme can be saved and recalled on the fly. On startup, the SMR loads settings from the last saved bank.
- Optional alternative filter type for a more exponential decay when plucked and different timbral qualities. Freq jacks no longer track 1V/oct in this mode.
- Slider LEDs can be assigned to display level for each channel (combination of slider position and CV on the jack), or clipping for each channel.

Notes: The Stereo Triggered Sampler can record high quality stereo files, while simultaneously playing two different stereo files. A maximum of 600 samples can be loaded from the removable/swappable microSD card, in a variety of formats up to 96kHz/32-bit/stereo WAV. All sample parameters (1V/oct pitch, sample file selection, length, and start position) are CV controllable.

600 Samples:
A maximum of 600 samples can be loaded at once, arranged into banks of 10 samples each. Samples and banks can be re-arranged on the fly using the simple on-board Edit features. Newly recorded samples can be instantly played back and re-pitched, reversed, chopped up, etc... the result of which can even be bounced down and re-recorded to as a new sample! Sample files are limited to 4GB each, which is over 6 hours at 44k/16b/stereo.

Two Stereo Playback Channels:
Each playback channel has a knob and CV jack for Sample File selection, as well as a Start Position knob and CV jack for controlling where in the sample playback will begin. The Length knob and CV jack determine how much of the sample is played back: from tiny grains, to percussive hits, to longer loops... or just the entire file. These are powerful tools for re-arranging a sample, joining multiple samples, and creating dynamically re-sized loops within a larger sample. Combined with the Play Trigger jack and the 1V/oct jack, the STS can be two complete multi-timbral pitch-tracked stereo voices!
There's also a Reverse button and jack for backwards playback, and an End Out jack for synchronizing loops, or cascading sample playback with other events.

Looping and Sync:
Looping is easy: just hold the PLAY button down for two seconds to toggle loop or one-shot. The loop timing clock will output from the End Out jack. Or, send a clock into the Play Trig jack to sync the loop to external timing.

Stereo Recording:
Whether you patched 47 modules to create the ultimate percussive blast, or you want to capture your four hour ambient performance, recording high-quality .wav files on the STS is simple. Just hit the REC button or fire a trigger and a new stereo .wav file will be created on the SD card. Do as many takes as you need: the STS never deletes your files. Re-ordering or re-arranging samples into banks is easy, even without a computer.
You can even fill a bank with 10 different variations and immediately use them for playback.
By default the STS records at 44.1kHz/16-bit, with an option for 24-bit (a future update may increase the sample rate to 96kHz)

Easy sample loading:
Using a computer is completely optional with the STS, since samples can be recorded directly to the module and placed into the bank of your choosing. But for users with large existing sample banks, the intuitive automatic bank loading features make dragging and dropping your entire sample library a snap. You never have to rename your files again!

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


The Spherical Wavetable Navigator (SWN) is a six-channel synthesiser that makes it easy to create slowly morphing drones, polyphonic melodies, evolving sequences, and rich textures.

The SWN features six wavetable oscillators with independent pitch, level, and waveform controls. Six LFOs (Low Frequency Oscillators) can be used as modulation sources and/or envelopes, making it easy to add dynamic motion to your patch. Each channel is a full voice and can be "played" using the top row of buttons, the internal LFOs, or note-change detection on the 1V/oct jacks. The SWN ships with 12 three-dimensional (spherical) wavetables and an easy interface which allows you to record and edit custom wavetables from live audio. Open-source software for Mac, Windows, and Linux called SphereEdit can be freely downloaded and allows you computer to create, edit, and convert .wav files into Spherical wavetables to transfer into the SWN with an audio cable.

New firmware available which adds extra features, visit https://4mscompany.com/p.php?p=820&c=5 for details.

Notes: The Tapographic Delay is a complex multi-tap delay in the Eurorack format with a unique interface designed for live performance. It excels at transforming the simplest audio (a drone, a percussive sound) into complex rhythmic structures, meshes of organic textures, lush harmonic mille-feuilles, liquid and resonant effects.

Have you ever got tired of the monotonous repetitions that your standard delay pedal/module produced? Have you ever wished for a more complex rhythmic structure than just decaying repetition? If yes, you have come to the right place: the Tapographic Delay is an advanced effect that lets you handle repetition in a completely novel way. It is to a traditional delay what a full rhythmic sequencer (with pattern recall, velocity control, tactile input) is to a simple clock. With the TD, you interactively define the rhythm that the repetitions will follow: a velocity-sensitive sensor allows you to record, edit, modify, and sequence your own arrangements of delays. In a sense, the TD is the converse of the classic Frippertronics sound-on-sound setup popularized by Robert Fripp in the 70's: you don't play the guitar, you play the tape loop!

The Tapographic Delay is an expressive experimental instrument meant to be played in real-time, rather than a set-and-forget end-of-chain effect. Interact with it! Experiment! Push it to its limits!

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


The Tapographic Delay is a complex multi-tap delay in the Eurorack format with a unique interface designed for live performance. It excels at transforming the simplest audio (a drone, a percussive sound) into complex rhythmic structures, meshes of organic textures, lush harmonic mille-feuilles, liquid and resonant effects.

Have you ever got tired of the monotonous repetitions that your standard delay pedal/module produced? Have you ever wished for a more complex rhythmic structure than just decaying repetition? If yes, you have come to the right place: the Tapographic Delay is an advanced effect that lets you handle repetition in a completely novel way. It is to a traditional delay what a full rhythmic sequencer (with pattern recall, velocity control, tactile input) is to a simple clock. With the TD, you interactively define the rhythm that the repetitions will follow: a velocity-sensitive sensor allows you to record, edit, modify, and sequence your own arrangements of delays. In a sense, the TD is the converse of the classic Frippertronics sound-on-sound setup popularized by Robert Fripp in the 70's: you don't play the guitar, you play the tape loop!

The Tapographic Delay is an expressive experimental instrument meant to be played in real-time, rather than a set-and-forget end-of-chain effect. Interact with it! Experiment! Push it to its limits!

Notes: The VCA Matrix from 4ms is a playable 4x4 matrix of 16 VCAs.

Four CV or audio inputs can be routed in any amount/combination to four outputs, using the 16 CV control jacks, Level knobs, and Mute buttons.

Notes: Maestro is a 6 channel clocked modulation controller inspired by the automation lanes found in digital audio workstation software, brought into eurorack and made playable and performable. Maestro will push and pull the parameters of your other modules with rapid or slowly evolving voltages, always in perfect sync with eachother and the rest of your system.

Details:

20hp

25mm deep

65mA on +12, 18mA on -12, 0mA on 5V

Notes: The main purpose of the ACL Audio Interface module is to interface modular synthesizer systems with professional audio recording and stage equipment.
The combination of studio quality signal path, flexible routing possibilities and a headphone amplifier, capable of driving both high and low impedance headphones with low distortion, makes the connection between these different environments effortless and sonically transparent.
The ACL Audio Interface offers balanced to unbalanced and unbalanced to balanced stereo lines with level controls. The stereo signal from the auxiliary input, also with level control, can be optionally routed to and mixed together either with balanced to unbalanced, or unbalanced to balanced line signals, or can be muted. The headphone ampli fier can also get its signal from one or the other line after the level control and mixing stage, or can be muted. Since the amplifier is AC coupled only at the input, but not at the output, there is an on-board DC protection circuit included. In case the headphone ampli fier is driven into clipping, the protection can also be tripped. The module has a soft start function and one overload indicator for every line.

Features

One DC coupled electronically balanced input to unbalanced output stereo line with LEVEL control, can vary from full attenuation to unity voltage gain (0 dB).
One AC coupled unbalanced input to electronically balanced output stereo line with LEVEL control, can vary from full attenuation to voltage gain of two (+6 dB).
One routable AC coupled auxiliary stereo input with mute function and LEVEL control, can vary from full attenuation to voltage gain of two (+6 dB).
One routable AC coupled stereo headphone ampli fier with VOLUME control, can vary from full attenuation to voltage gain of two (+6 dB).
DC and clipping protection circuit for the headphone ampli fier, switches off headphone output if DC at the output exceeds i50 mV and/or in case of hard clipping.
Two overload indicators - one for every stereo line, calibrated to turn on when the audio levels at the outputs exceed 4,5 Vpp

Dimensions
14 HP
40 mm deep

Current Draw
110 mA +12V
120 mA -12V

Notes: The VCF ladder design consists of 4 stages, providing a buffered output for each of the 4 stages separately in order to get a 6dB, 12dB, 18dB and 24dB/octave -sloped filter outputs individually. (The outputs at different stages then could be mixed together using a polarizing mixer to achieve different filter slopes and even different bandpass behaviors.) The cutoff frequency of the VCF can be controlled manually using the knob named CUTOFF and by 3 independent external control voltages, connected to the input jacks named „1V/OCT", „CV1" and/or „CV2", while „CV1" and „CV2" inputs get an attenuator each (Knobs named „CV1" and „CV2").

The VCF's resonance can be controlled manually and by an external CV connected to the RESONANCE input and attenuverted by the knob named RESONANCE CV. When resonance is turned up fully, self oscillation will occur, enabling use of the VCF as a voltage controlled quadrature VCO since each stage output signal is phase shifted by 90- to the previous stage. Resonance is provided by feeding back the output of the last stage to the input of the 1st stage. A switch called Q LIN switches between 3 different feedback settings, affecting the frequency linearity of the feedback path: In a very classic design of a lowpass adder VCF, the lower frequencies are damped more than higher frequencies, generating a loss of self oscillation at low cutoff frequencies. This behavior can be achieved by switching Q LIN to LOW or MID, assigning 2 different cutoff frequencies of high pass filter in the feedback loop of the filter. By switching Q LIN to HI the cutoff frequency of that high pass filter is lower than 1 Hz, enabling self oscillation even down to the LFO range of frequencies. The cutoff frequency is temperature stabilized and shows good tracking with 1V/Oct. to up to 5 octaves.

3 audio signals can be connected, being summed together to one signal in order to enter the VCF. When approaching 8V PP, the ladder will start to saturate, creating a awesome creamy and compressed sound, which will bend and evolve more and more to a very strongly saturated and distorted sound, the further the ladder gets overdriven by the signal. In many ladder designs, the lower frequencies gets more attenuated (bass loss), when increasing resonance, approximating a bandpass behaviour at very high resonance settings.
We added a knob called BASS BOOST for restoring the low frequencies and boosting them at high resonance settings. That way you can make very bombastic bass sounds, since the sound might get higher resonance settings and still keep
it's bass fundament.

When not overdriven by input audio signals, the overall distortion of the fully discrete audio signal circuitry is quite low due to the use of low distortion discrete buffers, enabling a very clean sine wave when self-oscillating no too strongly, unlike some other designs. The use of matched components made it possible to keep the CV-feedthrough quite low.

Dimensions
18 HP
22 mm deep

Current Draw
65 mA +12V
65 mA -12V

Notes: The Dual State Variable VCF consists of two multimode filters with high-pass, band-pass, notch and low-pass outputs. The circuits feature an edge steepness of -12 dB per octave. Routing options allow serial or parallel connection. Thanks to normalizations and a total of three cutoff potentiometers, stereo material can be processed as comfortably as mono signals.

Furthermore, a well-known feature from the Oberheim SEM synthesizer was implemented in the Dual State Variable VCF: The notch characteristic can be weighted more to the high-pass or low-pass side.

The resonance sounds extraordinarily rich and wet, even high values never sound all too harsh. While self-oscillating, the filters can be played like sine oscillators. By modulating both circuits in opposite direction, users are able to achieve interesting stereo effects.

Notes: How do you make a near-perfect three ADSR module even better? Well, obviously you make it slimmer and add some bling! So that's exactly what we did!

Let's get the boring descriptive bit out of the way first: Our Envelope X3 provides three classic ADSR envelopes for controlling VCAs, VCFs, and other modules. So, why should you care?

Well, we modelled the envelopes on those of the acclaimed Roland 100M modular synthesiser, which are renowned for their punch. We wanted to add something extra, so shortened the envelope time parameters even further - thus, our truly lightning-fast responses make Envelope X3 particularly excellent for drums, bass, and other sounds that benefit from fast, tight envelopes.

The long and short of it

But fear not, it's not a one trick pony, offering both Long and Short modes (with overlapping ranges), making it perfectly suited to pads, drones, and similar sounds too.

On a feature level, each envelope has independent gate inputs and one non-inverted and one inverted buffered output. Additionally, gate 1 is normalised* to all three envelopes, allowing one gate input to power three envelope generators simultaneously, without any additional patching.

A modular makeover

Now, in version 2, you get all of this in a smaller case, plus the addition of LEDs. These deliver highly responsive real-time visual representation of the envelope action. This isn't just pretty (and it really is pretty), but a surprisingly useful reference, whether you're tweaking envelope parameters or playing around in another part of your rack.

And rest assured, the weightloss and shiny lights haven't affected Envelope X3's performance: All components still feature very low temperature drift, irrespective of the environment temperature or component age. Expect high stability and repeatability (essential for very fast repeating percussive sounds).

Smack to the future

Whether on stage or in the studio, you can be sure that any sounds you shape with the Envelope X3 will sound as consistent over a time frame of years as they do on a scale of milliseconds.

*Automatically patched on the circuit board, unless alternative sources are manually patched in.

3U Eurorack module, 20 HP wide, compatible with Skiff cases

Current Draw:

51 mA +12V
30 mA -12V
0 mA 5V
Installation depth:

22 mm deep

Notes: Mix three mono or stereo signals together with gain control into a stereo output and/or to a headphone output with individual gain control.

Similarly to ACL's Audio interface module, the ACL S-MIX-OUT module is an audio interface module connecting the world of Eurorack with your studio. Unlike the Audio interface module, the ACL S-MIX-OUT comprises no inputs for line-level signals and it comes with servo-balanced 1/4" jacks instead of XLR jacks. There is a headphone amplifier, too.

The audio quality is the same as with the Audio Interface module, mostly same or similar circuitry is used here.

S-MIX-OUT offers 3 stereo inputs for modular signals, all inputs normalised to the left channel.

All inputs can be mixed together using attenuator potentiometers.

There is an overload indicator LED for each channel.

The same protection circuitry around the headphone amplifier is built in as is used in ACL's Audio Interface module.

All 3 inputs a routable to either the 1/4" stereo main out, the headphone or both using a 3 positions switch. That way a prelisten bus is easily configured.

Notes: The ACL Variable Sync VCO is a precise, excellent sounding VCO, providing five simultaneous waveforms, a VC variable-sync feature, deep linear FM and more, and all with precise tracking and low temperature drift. There are any number of treasured components in our modular system, and it's a thankless task to rank them, but anything that generates audio deserves a place at the head table. Out of respect for this honoured status, we've tried to do some particularly cool things with our Variable Sync VCO, and push it to some uncommon extremes.

First thing's first though: These oscillators sound great, with exactly the kind of classic raw vintage synthesiser tone you'd wish for. The sound is derived from one ramp core oscillator, with several waveshaper subcircuits, allowing saw, inverted saw, triangle, sine, and rectangle. And since we only like randomness and unexpected results on our terms, exclusively at times of our choosing, consistent tuning is the name of the game.

There's more to life than tone and tuning accuracy, so additionally, when synced to another VCO, the degree of synchronisation (i.e. soft-sync, hard-sync) can be set manually by knob, or by an external CV. In other words, this lets you morph between soft- to hard-sync. Which is pretty nice. There are many fun results to be had here. For example, you can modulate the Sync Threshold to create a variety of effects, such as 'pulse trains' or crazily stuttered waves, for a weird, bizarre, and wonderful world of sci-fi sound. Used in conjunction with frequency modulation, this can introduce fascinating harmonics to otherwise harmonic-free sine waves.

Plus, we don't want to show off, but the linear FM modulation amount is quite huge for this type of VCO. And the input for linear frequency modulation is AC coupled (enabling very high modulation amounts with minimal drift off the center pitch) and configured like differentiator.

If all this is going over your head, it essentially means minimal detuning is introduced. The VCO features low, middle, and high modes, which, together with the 10 turn precision Tune pot, results in a very convenient on-the-fly ay of tuning the module. The frequency can be modulated exponentially from two CV inputs.

There is so much more to say about the Variable Sync VCO, and we invite you to check out the PDF manual for more details, but VCOs should be judged as much on their sound as their features, so we also urge you to listen to some of the audio demos to hear it in action.

Width 16 HP

Current Draw:

40 mA +12V
35 mA -12V
0 mA 5V

Installation depth:

22 mm deep

Notes: Audiophile Circuits League serve up the premium goodies with this hybrid quad VCA/mixer. Four high-quality exponential VCAs with built-in summing and individual outs.

Supplier's Notes:
The ACL VC AMP MIX is a high quality quad exponential VCA with three summed outputs.

The module allows to create a mix of up to four audio sources to three different sums. Available outputs are the sum of channel 1+3, the sum of channel 2+4 and sum of all channels 1+2+3+4. Of course all 4 individual VCA outputs are available as well. It includes an aux input, which will be added unity gain to the sum of all outputs 1+2+3+4 for cascading purposes.

The module can be combined with ACL- RCVS-4 and/or ACL- FCVS-4 CV Source to form a 4 channel voltage controlled mixer very conveniently.

HP : 12

Notes: This is Version 2 of this module, updated in order to be skiff friendly.

With the ADDAC102 FM Radio you'll be able to tune-in FM radio. Besides the ability of station broadcasts as sound generators for your synthesis, you can also have a lot of fun with the fact that its a great noise generator- the static picks up all kinds of great electromagnetic interference.

It provides controls like tune, volume and seek (all of them controllable through CV input) and there's two outputs for stereo sound.

Notes: The ADDAC111 ULTRA .WAV PLAYER is the long awaited upgrade to the praised ADDAC101 .WAV PLAYER.

While keeping all functions of the original, there's more dedicated controls as well as a few new functions.

For this version, Micro SD Cards were used- this decision was made in order to help the hardware construction and make it only 3cm deep.

An Expansion module, ADDAC111B, was also created to allow users to recall the first 8 files through dedicated trigger signals. This allows sequencing of files.

The Loop Size, Start Point and Sample Rate defines how the loop is played.

Loop Settings defines if sample is looping or playing only once.

File Access if it advances to the next or previous file.

The VCA section controls the overall volume of the module.

And finally the Envelope Follower generates a CV voltage related to the amplitude of the audio signal pre-VCA.

Notes: 4 Voices of Quantization with a 10 octave range.

Mechanical:

Format: Eurorack
Width: 10 HP
Depth: 5.2 cm

Control Voltage I/O:
CV inputs: i 5v
CV outputs: +10v

Electrical:
Max current: +140mA/-70mA
Bus Board Cable: 8 × 2 IDC (Doepfer style) connector

Notes: This is a development platform optimized for the Eurorack electronic enthusiast.

Power sources:
-12V, +12V
-3/10V, +3/10V

Ships with: 1M Ribbon Cable and 55cm standoff Spacers for desktop operation, screws and nylon washers

Mechanical Specs:
Width: 36 HP
Depth: 3.5cm (i1.375 inches) with or without Arduino installed, Depth increases if using arduino shields.

Notes: Most recent from the ADDAC MIDI Series, the 222 converts 4 CV inputs to four distinct polyphonic MIDI NOTES streams, with up to 6 note voices per input. This allows the user to send MIDI notes to external midi devices straight from your modular: just plug it into your classic synth or your favourite virtual instruments. Combined with the ADDAC221 you can fully control any external MIDI device.

Ships with 2 TRS to MIDI type A cables (Korg, Make Noise...).

Note: All specifications and features are subject to change without previous notice.

Notes: This module is a powerful rhythm generation machine- it features 4 voices of gate outputs (including inverted outputs for logic NOT sequences) where each voice can have independent lengths, all configurable with direct knobs anc cv inputs.

Perfect for precise polyrhythmic patterns and all sorts of non-linear sequencing.

The module works by 6 different rhythm generation "algorithms / principles":
Euclidean (equal distribution)
Golomb Rulers (inequal distribution)
Probabilistic (predictable distribution)
Game Of Life (organic progression)
Footwork'n (inducted error progression)
Pong (voltage controlled Pong game)

Plus a 4 channel Gate Sequencer Mode with up to 32 steps and 16 storable presets.

Add ADDAC402B Expansion for full I/O Midi control plus access to a powerful midi interface, with:
Midi Sync
5 cv to midi channels (notes and/or cc)
4 midi to gate channels
All panel controls (knobs, switches and push buttons) as cc controls.

All fully configurable with a midi learn feature for easier configuration.

MECHANICAL:
Format: Eurorack
Width: 20 HP
Depth: 5.5 cm

CONTROL VOLTAGE I/O:
CV inputs: 0 to +10v

ELECTRICAL:
Max current: 150mA
Bus Board Cable: 8 × 2 IDC (Doepfer style) connector

Notes: The ADDAC501 does random CV generation and outputs it through four independent channels. You can control the desired range of voltages and time frequency at which new values are generated.

It can also be triggered by an external CV source and the output voltages can be either free or quantized (if you prefer to have a standard C Major scale).

Finally you can choose between pure randomness or a brownian distribution, for both the voltage and time intervals.

Mechanical:
- Format: Eurorack
- Width: 8 HP
- Depth: 5 cm

Control Voltage I/O:
- CV inputs: 0 - 10v
- CV output: 0 - 5v (0 - 10v through jumper)
- Gate in threshold: 2.5v

Electrical:
- Compatible with +-12v and +-15v power supplies
- Max current: 150mA
- Bus Board Cable: 8 × 2 IDC (Doepfer style) connector

Notes: Newtonian physics on a modular synth! The ADDAC503 Marble Physics is a CV generator based on the mechanics behavior of a marble on a tray.

Through this realtime physics simulator you'll be able to control several parameters that will affect the behavior of a model of a spherical object against a plane. You can tilt the plane or bump the marble with a certain strength, which will cause it to roll and bounce on elastic walls.

The model will output the object's XY position or velocity and you can control other physical parameters, like the walls' elasticity or the strength of a bump. When the marble hits walls the bounce output triggers and you can additionally lock the X axis for a one dimension simulation. Finally you can also set the overall speed of the simulation.

By controlling all of these properties you be able simulate several scenarios where the marble falls, gets gently pulled by gravity, orbits indefinitely or bounces on walls like a pinball. Truly engaging physics simulations!

Mechanical:
. Format: Eurorack
. Width: 10 HP
. Depth: 5.2 cm

Control Voltage I/O:
. CV inputs: i 10v
. CV outputs: i 5v

Electrical:
. Max current: 150mA
. Bus Board Cable: 8 × 2 IDC (Doepfer style) connector

Notes: This is a complex Gate / CV generator based on probabilities.

Functions:

Knob 1:
%1 = Gate 1 Probability
5TG = Fifth Output Type: Trigger/Gate
N1 = Note 1 Tuning

Knob 2:
%2 = Gate 2 Probability
T.SIZE = Trigger Size
N2 = Note 2 Tuning

Knob 3:
%3 = Gate 3 Probability
DIR = LOCK Mode Direction: Backwards/pendulum/forward
N3 = Note 3 Tuning

Knob 4:
%4 = Gate 4 Probability
S.SIZE = LOCK Mode Sequence Size: up to 16 steps
N4 = Note 4 Tuning

Knob 5:
SWING X = Clock Swing X: 1 to 16
Y = Clock Swing Y: 1 to 16
N5 = Note 5 Tuning

Gate Outputs Behaviour:

At every clock input, based on the four knobs probability settings, the module will select one active gate out, only one of the five gates will be active at all times. All Gate outputs can also behave as a Trigger instead, Trigger size can also be adjusted.

The knobs set the probabilities of each gate to be chosen, here's an example of how this operates

With all first four knobs at 12 o'clock the first Gate has 50% of being the chosen one, the remaining 50% of the times will be passed through the next knobs. So Gate 2 at 12 o'clock has 50% of the remaining 50% left by setting one, which leaves it with 25% chance of being the chosen one, the remaining 25% will be passed through Knob 3 which will have 12.5% chance of being the chosen one, the remaining 12.5% will be sent to Setting 4 which will have a probability of 6.25%. The remaining percentage left by the 4 Settings will always be the probability of Gate 5, in this case the remaining 6.25%.

Here's a couple more examples.

All knobs at 12 0'clock
Setting 1 = 50% chance, 50% left for remaining settings.
Setting 2 = 25% chance, 25% left for remaining settings.
Setting 3 = 12.5% chance, 12.5% left for remaining setting.
Setting 4 = 6.25% chance, 6.25% left for Gate 5.

All knobs at 9 0'clock (aproximate values)
Setting 1 = 20% chance, 80% left for remaining settings.
Setting 2 = 16% chance, 64% left for remaining settings.
Setting 3 = 12.8% chance, 51.2% left for remaining setting.
Setting 4 = 10.24% chance, 40.96% left for Gate 5.

Tuning and CV outputs:

While in the Tuning page you can use all knobs to set the 5 pitches
When in tuning page knobs should be rotated one at a time!
While rotating the knobs the CV out 4 will be used as a monitor, the other 3 CV outs will be behaving normally.
The module detects which pot is being rotated and outputs the relative pitch CV on CV out 4 for all knobs.
While on this page the tuning will be quantized or not relative to the panel Quantize on/off switch. Even if this process is done in quantized mode the module always store the free value in order to allow quantisation to be turned off later.
Once you're happy with the tuning you can exit the page, new values are stores to memory while exiting the page.
When tuning the module detects both the note selected and the relative octave.

CV Outs behaviour
This will be easier to explain with examples

Let's say we tuned these notes:

C0 or 0v
D1 or 1.166v
F2 or 2.466v
G3 or 3.583v
A4 or 4.75v

1. Next Logic out calculated is gate 3.
CV outs 1-2-3 will output a note in octave 2, the note itself is randomised from the 5 tuned notes (C,D,F,G,A).
CV out 4 will output the exact note tuned with knob 3 (F2)

2. Next Logic out calculated is gate 5.
CV outs 1-2-3 will output a note in octave 4, the note itself is randomised from the 5 tuned notes (C,D,F,G,A).
CV out 4 will output the exact note tuned with knob 5 (A4)

Out 1-2-3 is octave related
Out 4 always output the original tuned note

Knobs Pages access:

MENU/TRIGGER button is used to access pages
After power up it gets to first page by default.

Page 1:
MENU/TRIGGER button is off and blinks with clock inputs

Page 2:
Pressing the MENU/TRIGGER button for 3 seconds the Button Led lights up meaning you're in Page 2, changing knobs will affect the secondary function.
Releasing the button jumps to Page 1

Page 3:
Pressing the MENU/TRIGGER button for 3 seconds the Button Led lights up, keeping it pressed without moving any knob for 3 more seconds makes the Button led go off. At this time you can release the button. After that the button will light up meaning you're in page 3, or the tuning page.
Pressing the button one time jumps to Page 1

Soft-Recall and Memory:

Knob positions are stored in memory while in operation to be able to have a soft recall of the settings, so when jumping from page to page you'll need to rotate the knob until you find the last setting and only then they start to operate. Whenever the pot crosses the last setting point the MENU/TRIGGER button will blink indicating that the knob is now active.

Page 2 & 3 have permanent memory so it will always load the last settings after power up.
Page one is volatile and powers up with the initial knobs settings.

Notes: Inspired and officially licensed from Teia's Stochastic Function Generator which was introduced in 2013 but is no longer available. This earlier version served as an inspiration, but with a completely rebuilt and reprogrammed mcu to a fully featured 4 voice 2 stage envelope and slew generator.

This new module + expansion is ADDAC System's take on a different envelope/slew generator. It's a fully featured Quad Analogue Core Envelope Generator and Slew Processor with digital control which also incorporates built in random generators to control the Rise and Fall times.

Covering the full range from short sharp notes to long slow sweeps of up to 6 minutes. Together with the random generators it excels when used for drone soundscapes.

Used as a Slew Processor the random generators act as dynamic modulation sources affecting the rise and fall slew speed.

Fully featured outputs act as encouragement to self-patching creating interdependent envelopes acting in sync.

width: 20HP
200mA +12V
150mA -12v

ADDAC506B:
width: 2HP
10mA +12V
10mA -12v

CV OUTPUT RANGE:
Each channel CV output range can be set with the [Amplitude] and [Offset] attenuverters.
Amplitude can be set to a maximum of 10v peak to peak(pp), ex 0 to +10v or -5v to +5v.
Offset can as a maximum range of 20v peak to peak and allows to offset the CV to i10v.

Notes: Following ADDAC's ADDC503 Marble Physics here is a new simulation of a physical system. This time, imagine a small area in the middle of the ocean, in this area we place 4 equally spaced buoys anchored to the bottom in such a system that we can control the spacing between the buoys. Imagine we can control the elements and agitate the waters at will which in turn will make the buoys move up and down as the water surface moves.

Finally imagine the buoys would wirelessly transmit their absolute height directly to your module outputs where they would be mapped to a voltage signal.

ADDAC use a Gerstner Wave as the motor behind the two-dimensional wave generation. In fluid dynamics a Gerstner Wave is described as "a progressive wave of permanent form on the surface of an incompressible fluid of infinite depth". Gerstner waves are often used in computer graphics to simulate any type of water surface, if you've seen any animation film or computer game with water surfaces in it most probably it features a Gerstner wave generating it.

Tech Specs:

10HP
4.5cm deep

70mA +12V
40mA -12V

Notes: Eight independent fixed-frequency filter bands combine with linear VCAs to create massive sonic potential. VCAs also double as envelope followers, with a CV output per band.

Supplier's Notes:

The ADDAC601 Analog Filterbank will have you shaping the spectrum of your sound "tout de suite".

With its 8 fixed frequencies, this very special filterbank has two additional features that you won't find anywhere else. Each of the 8 band volumes can be controlled through a linear high performance VCA, which adds great dynamics and new abilities to the art of filtering. Additionally this module also doubles as an envelope follower, with a dedicated CV output per band.

It features numerous output options: you can select between individual bands, the full processed sound, a wet/dry signal and even choose between odd or even frequencies.

Plus you can add up to two different signals, which are mixed internally by the ADDAC601 inputs.

- Format: Eurorack
- Width: 20 HP
- Depth: 5.5 cm

Control Voltage I/O:
- CV inputs: i 5v
- CV outputs: 0 - 10v

Electrical:
. Compatible with +-12v and +-15v power supplies
. Max current: +340mA/-350mA
. Bus Board Cable: 8 × 2 IDC (Doepfer style) connector

Notes: The ADDAC603 VC Triple Bandpass Filter provides three channels of bandpass filters, fantastic for sculpting complex sounds. Each of the channels feature a gain/distortion control with switch to select between x3 or x100 gain, which can cause the input signals to distort, adding another layer of harmonic interest.

The inputs are cascaded together to allow for one source to be filtered three different ways - or each filter can be used independently. The three filters also feature controls for frequency, which sets the cutoff point; width, which sets the width of the band that is being filtered; feedback, which at high settings causes the filter to self-oscillate, and level control, which sets the amplitude of the output. Frequency, bandwidth, and output level each have CV inputs with attenuverters.

A switch sets whether the filter is 24 dB or 12dB per octave. There are individual outputs with phase switch, plus a mix output and dry/wet output with adjustable control for mix balance. This module provides a wide variety of filtering options to add complex tonal shaping to your rack.

Tech Specs:

22HP
3.5 cm deep
250mA +12V
250mA -12V

Notes: This module was developed upon the Tubaz Filter which was released in 2014 by Gotharman but is currently no longer in production. We loved the original module so much that we officially licensed it's circuit and expanded it to feature several new functionalities.

Here's a paragraph from Gotharman regarding the original design:
"I designed it with the purpose of adding crunch, edge and distortion to my eurorack system. It is not an ideal bandpass filter, that cuts off all frequencies above and below the center frequency.
Because of its high drive, there are, in most cases, some bleedthrough of the harmonics, that should have been cut off. You might consider calling it a "Band Add" filter. The main purpose of it, was to add edge, not to be a perfect bandpass filter."

While everything he mentions is still true we believe he was being modest, It's a dirty, gritty, growling and whining monster which promises you some of the most peculiar filter sounds you'll ever hear.
However do not classify it as a "weird" distortion unit just yet because besides this hairy character it can be easily tamed (using lower volume levels) and then, with some care and intention from the user, it will transforrm itself showing it's feline purrrrr and cuddle sweet and caring, or like any good mut, showing up at night all happy, wet and dirty from a full dog's day and will lay down at your feet while wiggling it's tail howling as yawning just happy to be back home.

As such, standard volume principles do not quite apply to these units, the Audio Levels will go up to x2 amplification, Drive will go up to x11 and master outs go up to x2. The combination of these will cover all diferent qualities it can present. Overall sound can be distorted pre-Tube (raising input levels), in Tube (raising drive) or post-Tube (raising Out levels).
Higher Inputs and Drive will always be gritty, lower Inputs and Drive volumes together with higher Output levels will make the overall behaviour more mellow and closer to what a typical filter would behave like.

No standard expectations should be considered when acquiring these units, all of the tubes were built in the 70's and were bought from various sources, we always kept the premise that no tube was a bad tube (unless not really workinng) so due to each specific characteristics no module will sound exactly the same, making each unit particularly unique. This uniqueness will be particularly evident on their resonance/self-oscilating timbre as well as in their own microphonic qualities.

Regarding power and current draw, the module is designed using a low power tube, so it won't starve your eurorack power supply.

Tech Specs:
12HP
3.5cm deep
90mA +12V
60mA -12V

Notes: Inspired by the legacy designs of premium vintage gear, the ADDAC800X behaves like a high-quality DI box and is all about keeping the sound coming from your Modular free from any undesired noisy interferences, making sure that what you're getting from your outputs is what your Modular is actually producing. It provides galvanic electrical isolation between the Modular system and external sources preventing impedance mismatch and ground loop induced hum. ADDAC's 800X circuit is designed around a unity 1:1 type nickel core Hammond Audio Transformer from the 140UEX series (equivalent to Jensen audio transformers).

Operating in the 20 Hz to 20 KHz range and providing exceptional shielding from external sources, this impedance matching transformer provides the 800X with two fully balanced high-end outputs (via XLR connectors).

Applying a transformer balanced output isolation has lots of advantages over other less expensive ways for dealing with ground loop issues. This method provides the chance to set a very simple and clean circuit in which the signal transfer process develops smoothly and humming free. The transformer is a device that performs both signal balancing and high-to-low (or vice-versa) impedance conversion, while rejecting straggled DC voltage and Radio Frequency Interference from signal passing through a magnetic bridge. In a transformer, two (or more) coils (called windings) of insulated wire wound around a magnetic metal core allow for its input(s) and output(s) not to be physically connected together. When an AC signal passes through the input winding (the primary), a perfectly related AC signal appears on the output winding (the secondary). This way, by the fact that signal flows via inductive coupling between the two windings of the transformer, the ADDAC 800X presents a most accurate electrical isolation between its input and output. A same number of windings on each coil guarantees that there's no gain loss when audio signal passes from the primary to the secondary windings. Furthermore, since these two windings are insulated from each other, the transformer will electrically isolate the 800X from any other device, preventing hum problems coming from an outsider ground.

LEFT IN will output sound to both channels.
Through RIGHT IN, signal will only find its way on OUT 2 (if the LEFT/RIGHT toggle is lifted up, RIGHT IN will be ignored and LEFT IN will be present in both OUTs). With both INs connected you'll have two separate outputs (LEFT IN -> OUT 1 & RIGHT IN -> OUT2). However, lifting up the LEFT/RIGHT toggle you'll also find RIGHT IN ignored and LEFT IN will fed both OUTs.

Each TRANSFORMER ISOLATED OUTPUT section has its signal overload warning led and two dedicated toggle switches: one that works as a simple amplifier / attenuator pad to +6dB / -10dB respectively, and a LIFT/FLOAT/GND toggle. This last one is a 3-way selector that lets you choose between lift, ground or floating ground (toggle's middle position) to be taken as reference for the ground point. In the LIFT position the module circuit will be lifted to ground through a 100R resistor and a 10nF capacitor and pin 1 of the XLR connection will act as the ground point. Choosing GROUND will put ground to be shared between inputs and outputs. Floating ground will leave ins and outs grounds completely apart from each other. Any of these three positions may be the best form of avoiding ground loops or any other undesired interference occurring between your modular and the sound system you're plugging it into. Try out which one of this options will work the best in a given situation.

An HEADPHONES AMPLIFIER (with VOLUME knob) connection is available for quietly working with your modular or pre-listen your sounds before making them public matter in a live situation. This section features an OPA2134 High-Performance Audio Operational Amplifier. This device presents the ideal characteristics for use with an headphones set, like ultra-low distortion and low-noise fully specified for audio applications, in combination with high-output drive capability and excellent DC performance that altogether allow for high-dynamic headroom and really superior sound quality.

Mechanical:
. Format: Eurorack
. Width: 8 HP
. Depth: 6.7 cm

Electrical:
. Max current: 100mA? on each rail
. Bus Board Cable: 8 × 2 IDC (Doepfer style) connector

Notes: This module comes to update the previous ADDAC802 Audio Mixer.

Each of the 5 channels has:
. VCA with initial Knob
. Monitor LED
. Independent output
. Linear or logarithmic control
. Solo/Off/Mix switch that routes their audio to the Solo Channel or the Mix channel. In Off position the VCA does not go to the outputs.

All 5 VCA's can be used separately for different sources (audio or cv) or mix in 2 different chains.

Outputs:
. 1 Pre Master VCA output
. 1 Post Master VCA output
. 1 Solo output

The Solo line is also intended for Pre Listening purposes, using this output to connect your headphones through a headphone amplifier module.

Mechanical:
. Format: Eurorack
. Width: 12 HP
. Depth: 55mm

Control Voltage I/O:
. CV inputs: i 10v

Electrical:
. Compatible with +-12v and +-15v power supplies
. Max current: +190mA/-150mA
. Bus Board Cable: 8 × 2 IDC (Doepfer style) connector

Notes: Our Reversed panel version of the ADDAC802 VCA Quintet.

Each of the 5 channels has:
- VCA with initial Knob
- Monitor LED
- Independent output
- Linear or logarithmic control
- Solo/Off/Mix switch that routes their audio to the Solo Channel or the Mix channel. In Off position the VCA does not go to the outputs.

All 5 VCA's can be used separately for different sources (audio or cv) or mix in 2 different chains.

Outputs:
- 1 Pre Master VCA output
- 1 Post Master VCA output
- 1 Solo output

The Solo line is also intended for Pre Listening purposes, using this output to connect your headphones through some headphone amplifier module.

Mechanical:
. Format: Eurorack
. Width: 12 HP
. Depth: 5 cm

Control Voltage I/O:
. CV inputs: i 10v

Electrical:
. Compatible with +-12v and +-15v power supplies?
. Max current: +190mA/-150mA
. Bus Board Cable: 8 × 2 IDC (Doepfer style) connector

Notes: This is ADDAC System's Quadraphonic output module.

Using the VBAP (Vector-Base Amplitude Panning) principle, it allows to position a mono signal over a quadraphonic speaker array for sound spatialization. The VBAP algorithm can be controlled by Cartesian or Polar methods

Sound path is fully analogue featuring 4 high quality VCA's.

Featuring both 1/4 inch and 3.5mm jacks for adapter free connections.

Four 16 bit CV outputs mirror the signal sent to the VCA's control, when connected to 4 external VCA's these can be used for Polar Mixing of 4 diferent sound sources.

The 2 Filter CV outputs react according to the distance from the center point. The + output increases as the sound gets further away from the center of the room allowing to sync a Low Pass Filter to the input sound so that as it moves away from the center the High Frequencies get attenuated further increasing the spatialization experience. Another good practice would be to sync a reverb dry/wet signal as well so that the sounds gets more difused as it moves away from the center into the horizon.

Both the filter and the reverb should be plugged between the sound source and the 803, in order for the incoming sound to be processed before being routed to the 4 outputs.

The X and Y CV outputs mirror the cartesian sound position between 0 and +5v.

Mechanical:
. Format: Eurorack
. Width: 14 HP
. Depth: 6 cm

Control Voltage I/O:
. CV inputs: i 10v
. CV outputs: + 5v

Electrical:
. Compatible with +-12v and +-15v power supplies?.
. Max current: 150mA on positive rail, 100mA on negative rail
. Bus Board Cable: 8 × 2 IDC (Doepfer style) connector

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: Revised take on the excellent Benjolin dual oscillator and filter from Rob Hordijk, featuring the 'rungler' stepped CV generator and extensive output options.

Supplier's Notes:
Benjolin V2 - Rob Hordijk's latest revision of the classic Benjolin. The core of the Benjolin continues to be two oscillators, the rungler (stepped CV generator), and a multimode filter.

This latest revision adds:

Reworked oscillator and filter sections

All levels are adjusted to eurorack standards

Two different steps modes (8/16 and 127)

Double and single clock rate

Externally clockable

External filter input with blend control

Notes: This is an exact hardware replica of the Mutable Instruments Blades module.

This model uses the original "hard-to-find" opamps, but After Later have substituted V2164M with AS2164D. All of After Later's products use AS2164D and there should be no measurable change in behaviour.

Notes: The 907A Fixed Filter Bank is a non-voltage controlled modifier which emphasizes or reduces the gain of the center frequency bands indicated on each of the eight center pots, in addition to the cut-off points from low pass and high pass filters at either frequency extreme. A total of 10 overlapping filter networks are included.

Specifications:
Power: +12 (30mA), -12 (15mA)
Depth: 20mm
Doepfer compatible.

Notes: The AION 921 VCO is a variable waveform generator which produces frequencies ranging from sub-audio (LFO) to 40.000 hz. Four waveforms are available: sine, triangular, sawtooth and rectangular (with variable duty cycle A.K.A. pulse width modulation).
Both fixed and variable levels can be obtained from the front panel output jacks. Nominal frequency and range controls (octave) are found at the top of the module.

Voltage controlled rectangular width (VC-PWM) is set by the knob in the upper center (left) with the accompanying voltage input jacks.
Multiple frequency control inputs 1 and 2 can be plugged into this module in parallel. Control input 3 is used via the pot for linear frequency response (Liniar FM). All waveform outputs can be used if desired.

This is what we consider an improved version of the Moog 921 VCO, not a direct clone. Improvements were made concerning tuning and stability issues.

Frequency range:
0.01 hz - 40.000 hz

Range switch:
sub audio - 0.01 - 400 hz
audio - 1 - 40.000 hz

Scale switch:
2 or 12 octave frequency span.

Auxiliary outputs:
2 jacks (one normal, one inverted) with selected waveforms (sine, triangle, sawtooth, inverted sawtooth rectangular and inverted rectangular).
Waveforms amplitude controllable from 0 to maximum.

Hard and Soft synchronisation selectable via a switch.
Synch must be "OFF" (center position) when synchronisation is not beeing used, otherwise it will sound out of tuning.

Specifications:
Depth: 40mm
Doepfer compatible.

30 mA +12V
30 mA -12V
0 mA 5V