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Synth modules

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Synth modules

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Cat: 717580 Rel: 06 Feb 19
 
Four channel stereo mixer with line-level, modular-level & headphone outs
Notes: The Listen Four is a four channel stereo mixer with line, modular, and headphone outputs. Two mono channels with Pan knobs and two stereo channels with dual inputs provide optimal compatibility with both stereo and mono signals. The Listen Four can be daisy-chained to other Listen modules to create a larger mixer with sub-mix outputs.
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MRP:$215.75 SAVE 19%
 2 in stock $174.59
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Cat: 717581 Rel: 06 Feb 19
 
Four channel stereo mixer with balanced 1/4-inch & headphone out - 12HP
Notes: The Listen Four Quarters is a four channel stereo mixer with 1/4" (6.35mm) TRS balanced outputs and 1/8" (3.5mm) headphones output. Two mono channels with Pan knobs and two stereo channels with dual inputs provide optimal compatibility with both stereo and mono signals. The Listen Four Quarters can be daisy-chained to other Listen modules to create a larger mixer with sub-mix outputs.
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MRP:$238.20 SAVE 26%
 1 in stock $175.63
Cat: 589491 Rel: 10 Dec 15
 
Expansion module for the Quad Clock Distributor (QCD) synth module - 12HP wide
Notes: The QCD Expander is an expansion module for the Quad Clock Distributor (QCD). The QCD Expander adds a host of features, turning the QCD into a programmatic non-linear sequencer. Each channel gets a CV Trigger Delay (Pulse Width) jack and knob, an additional output jack with three selectable modes, and attenuverters for all CV input jacks. Self-patched evolving rhythms and swing/shuffle patterns are easily obtained, as well as complete control over standard rhythmic patterns.
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MRP:$226.97 SAVE 30%
 2 in stock $159.01
Cat: 589497 Rel: 09 Dec 15
 
Rotating Clock Divider (RCD) synthesiser module - 4HP wide
Notes: The Rotating Clock Divider (RCD) produces eight divided clock tempos from a single input clock. The divisions range from /1 to /64, including all odd and non-standard divisions such as /3 and /17 and /62. A Rotate CV input re-assigns the division number of each jack, allowing for creative mix-ups and experimentation. A Reset input jack helps to sync/start with an external clock.

Jacks:
- Clock Input (5V to 15V clock, rising edge triggered), max 3kHz
- CV Rotate (0V to +5V input)
- CV Reset (5V to 15V trigger)
- Divided Clock Outputs (8 jacks):
Divide-by-(1+R)
Divide-by-(2+R)
Divide-by-(3+R)
Divide-by-(4+R)
Divide-by-(5+R)
Divide-by-(6+R)
Divide-by-(7+R)
Divide-by-(8+R)
...where R is the CV Rotation.
- Selectable Gate/Trigger mode:
- Selectable Divide range up to Divide-by-64:
Two jumper pins on the back can be pre-set with jumpers plugs, or used with (forthcoming) breakout panel.
- Selectable Auto-reset:
Auto-reset will reset the divide counter every 16/24/32 clocks, which keeps the beats more "dance-able" even when using the "weird" clock divisions (3/5/6/7/9/10/11/etc..) Two jumper pins on the back can be pre-set with jumpers plugs, or used with (forthcoming) breakout panel.
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MRP:$204.52 SAVE 17%
 2 in stock $169.39
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Cat: 601494 Rel: 28 Mar 18
 
Sophisticated rhythm creation & manipulation module - 14HP
Notes: Pattern and rhythm creation and manipulation module for creating musically useful rhythms and patterns from a variety of inputs - it's a module that will jam along with you.

36 algorithms in 6 sets covering Variables, Multiples, Probability, Logic, Phase and Gates with configurable CV control over all parameters.

Takes regular clocks and generates rhythmic patterns, takes rhythmic patterns and generates new patterns, takes irregular and random patterns and generates new, irregular and probability-based patterns.

The patterns can be rhythmic, continually evolving or entirely random and can be controlled and manipulated via multiple CV options.

Can also be used as a utility module to perform Clock Division/Multiplication, Phase-Shifting and Logic-related tasks.
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$195.38 SAVE 10%
 6 in stock $175.84
FORTHCOMING
ADDAC System ADDAC104 VC T-Networks Module (black faceplate)
Notes: Following the ADDAC103 T-Networks, this new module is also inspired by Twin T-Networks circuits used in many lengendary drum machines. A simple 4 voice module with frequency controls for each of the voices. This new module also features CV inputs with attenuverters for each voice Frequency. Due to the specificities of the circuit, and to keep the module at a low price, these inputs are not callibrated to 1v/octave.

At each voice input there's a gate to trigger converter so any input source is possible.
Audio inputs can also be used as an input, in this case and due to the nature of the gate to trigger converter, each voice can be used as very destructive filters.

The top 2 channels feature a higher frequency range, the bottom 2 channels feature a lower frequency range.
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MRP:$172.10
coming soon $165.23
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ADDAC System ADDAC106 T-Noiseworks Module (black faceplate)
Notes: This is the last module in Addac System's T-Networks series, a straight forward 4 voice module with frequency and decay controls for each of the voices. As the name already unveils , a noise source has been added, and 2 different circuits have been created, that explore the timbre of a t-network when used to filter noise.

There are 2 different circuits in this module, voices 1 to 3 have a pre-vca t-network filter while in voice 4 the t-networks filter applied post-vca.

At each voice input there's a switch which sets which type of input to use, this signal will be used to control an internal VCA hence why the type of setting defined here is important:
1. Trigger - Any incoming CV will be converted into a 1ms trigger as soon as it crosses it's fixed threshold.
2. Mute - This disconnects then incoming signal effectivelly muting the voice.

3. Envelopes - This can be used with CV sources as well as Gate sources and simply follows the input signal.

This incoming signal will then be processed by a slew circuit which adds a decay factor allowing the user to set the "Tail" of each voice.

Trigger mode is mostly dedicated for percussive sounds while the Envelope mode is open to any external enve- lope control and able to control noise swooshes, swirls, crackles and pops simply out of t-networks filtered noise.

Audio inputs are also welcomed to be used as a Trigger/Envelope input.

Diferences between voices:
The first 3 voices also feature a Timbre selector switch: Hat/Snare
In Snare mode all frequencies coming from the t-networks filter pass thru to the output .
In Hat mode it adds a High Pass circuit which removes the mid/bottom frequencies (characteristic of the snare strike) creating a higher spectrum output which is closer to a Hat timbre.
All of these 3 voices are also differently tuned from each other to offer more timbrical options.

Voice 4 is closer to a typical t-networks circuit but this time peculiar one where the noise is gated by the vca and then sent through the t-networks filter.

Hat and Snare are terms used very looselly here, they are timbrical references and do not in any shape or form try to effectivelly replicate the complex timbres of a real world Hat or Snare.
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MRP:$172.10
coming soon $165.23
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ADDAC System ADDAC203 CV Mapping Module (red faceplate)
Cat: 776164
 
CV mapping module
Notes: With the ADDAC203 CV mapping you'll be able to tame that voltage range and put it where it belongs. The attenuation knob compresses your voltage range and then you can also offset it.

Two channels for your mapping needs.

Mechanical:
. Format: Eurorack
. Width: 4 HP
. Depth: 3 cm

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

Electrical:
. Compatible with +-12v and +-15v power supplies?
. Max current: 50mA
. Bus Board Cable: 8 × 2 IDC (Doepfer style) connector
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MRP:$193.30
coming soon $186.02
FORTHCOMING
ADDAC System ADDAC204 VC CV Mapping Module (red faceplate)
Cat: 776178
 
CV mapping module
Notes: With the VC mapping module you'll be able to scale your voltage and also control its offset via CV.

This module provides two outputs for normal and inverted output voltages. A third output morphs between the normal and inverted outputs.

Mechanical:
. Format: Eurorack
. Width: 6 HP
. Depth: 2 cm

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

Electrical:
. Compatible with +-12v and +-15v power supplies?
. Max current: 40mA
. Bus Board Cable: 8 × 2 IDC (Doepfer style) connector
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MRP:$193.30
coming soon $186.02
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ADDAC System ADDAC212 EG Map Pack Module (red faceplate)
Cat: 776195
 
VC attentuator/offset module
Notes: A 4 Channel VC Attenuator and Offset.

The ADDAC212 is a 4-channel VC attenuator and off-setter. It lets you deal with up to four parallel inputs as a single pack, modulating their amplitude and offset (± 10V) with the same control knobs, both with cv inputs and dedicated attenuators.

Features 4 parallel VCAs with the same amplitude and offset control knobs and cv inputs with dedicated attenuators.

Idealized to be the perfect companion for Envelope Generators, you can send 4 EGs through it and control the overall amplitude and offset of all 4 envelopes at once. This allows more control over the Envelopes when patching typical synth voices.
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MRP:$193.30
coming soon $186.02
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ADDAC System ADDAC214 VC Rotator Module (red faceplate)
Cat: 776199
 
VC rotator module
Notes: This is the VC Rotator, a stepped routing module for any type of signal (audio, cv, gate, trigger...)

Similar to a VC switcher but in this case there's the same number of inputs than outputs so, instead of 4 to 1 or 1 to 4, this module is always 4 to 4 but it can be patched for 2 to 2 and 3 to 3 step actions.

All four inputs get routed to the four outputs depending on the CV and Clock controls and are divided into 4 routing steps:
1. routes all inputs to the same number output: 1:1, 2:2, 3:3, 4:4
2. routes all inputs to an offset of 1: 2:1, 3:2, 4:3, 1:4
3. routes all inputs to an offset of 2: 3:1, 4:2, 1:3, 2:4
4. routes all inputs to an offset of 3: 4:1, 1:2, 2:3, 3:4

Direction determines if the clock input goes forward or backwards.
Going forward it can be set to 2-3 or 4 steps using the Rotate knob offset, going backwards always sync to 4 steps even if offseted by the Rotate knob.
For 2 & 3 step action input 1 is normalled to input 3 and input 2 is normalled to input 4.

Reset resets the internal clock to the first step.

Pendulum, external sequencing or any complex CV actions can be achieved using the CV input and dedicated attenuverter.

4 leds monitor which input is routed to output 1.
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MRP:$172.10
coming soon $165.23
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ADDAC System ADDAC303 Muscle Sensing module (red faceplate)
Cat: 776297
 
muscle sensing module
Notes: This module introduces a totally new interaction principle for the Eurorack format, using electrodes to sense body muscles tension.

You can stick them to your arm and clench your fist, to your leg and tap your tempo, to your band bass player or drummer.

Module ships with electrodes.

Pads are reusable and replaceable.

Specs:
. Width: 4 HP
. Depth: 4 cm
. Max current: 60mA
. Bus Board Cable: 8 × 2 IDC (Doepfer style) connector
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MRP:$193.30
coming soon $187.05
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ADDAC System ADDAC307 Heart Sensing Module (black faceplate)
Cat: 776307
 
heart sensing module
Notes: Another addition to the ADDAC300's Expressive Controls Series.

Preceded by the release of the ADDAC303 Muscle Sensing module, this is the second module made to take advantage of the physical body as a control source.

This module originated from a simple idea: using one's heart beat as a control source.

Using a clip-on sensor, that can be attached to a finger or an ear lobe, the user's heart rate will be aquired by sensing the blood flow passing under the sensor. This pulse will generate a trigger and an AD envelope.

Clip-on sensor will be provided with the module.

Tech Specs:
4HP
3.5cm deep
60mA +12V
10mA -12V
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MRP:$172.10
coming soon $166.28
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ADDAC System ADDAC604 Dual Filter Module (black faceplate)
Cat: 776353
 
dual filter module
Notes: While developing the ADDAC105 4 Voice Cluster module, a new multimode filter to place after the summing mix stage- and the results were so postitive that it was released as a dedicated filter.

To make it more interesting, the circuitry was duplicated, to be able to use it in a stereo signal path.

To make it more versatile, a switch was added to set the working mode from Stereo to Dual Mono where both filters can be used independently.

In Stereo Mode the Left Cutoff is used to control the Right Cutoff.
In this case the Right Cutoff Knob and CV Input are simply bypassed and will have no impact on the Right Channel operation.
This allows immediate sync of both filter frequencies when the Stereo position is engaged.
Optionally there's a jumper in it's back that, when placed, connects the Right Controls back to the Right CV control allowing the possibility to control the offset of the Right Channel Cutoff.

Resonance is independent on both Modes and still has to be set manually to match both channels.

Both the Audio and CV inputs are normalled from the Left into the Right channels.
As standard plugging any input to the Right channels removes this connection.

Tech Specs:
6HP
4 cm deep
70mA +12V
70mA -12V
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MRP:$193.30
coming soon $187.05
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ADDAC System ADDAC701.REV2 VCO Module (black faceplate)
Notes: This is our new VCO, we discontinued our ADDAC701 VCO a few years back and since we've been wanting to release a more stable version with better pitch tracking increasing pitch reliability further minimizing the detuning issues of analog VCO's.

For this new revision we chose to use the modern version of the CEM3340 ic from CoolAudio and add the triagle to sine circuitry of our previous VCO. This new version is extremelly stable over 7 octaves.

We also added a new Mix section which allows mixing of all waveforms controlled by 3 knobs SIN/TRI, MIX and SAW/RECT.

Tech Specs:
8HP
3.5 cm deep
60mA +12V
60mA -12V
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MRP:$172.10
coming soon $166.28
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ADDAC System ADDAC703 Discrete Mixer Module (black faceplate)
Notes: Here's the second module of ADDAC System's 700's Heritage Series.

Inspired by Moog CP3 mixer, this is a totally discrete analog mixer and it's not, by any means, your standard breakfast mixer, although it can behave like one.

This is a wolf in sheep's clothing. Despite its harmless looks there's a dark snarly soul behind that panel that wants to take your sounds into a realm of gritty gnarly growls.

Mechanical:
. Format: Eurorack
. Width: 8 HP
. Depth: 3 cm

Electrical:
. Max current: 60mA.
. Bus Board Cable: 8 × 2 IDC (Doepfer style) connector.

Included:
.black screws
.black fibre washers
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MRP:$193.30
coming soon $187.05
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ADDAC System ADDAC805 VC Xfade/Panner Module (red faceplate)
Cat: 776662
 
crossfader & panner module
Notes: This is ADDAC System's new crossfader / panner. It can be used to crossfade between 2 signals or pan a signal from left to right.

Mechanical:
. Format: Eurorack
. Width: 4 HP
. Depth: 4.5 cm

Electrical:
. Max current: 60mA.
. Bus Board Cable: 8 × 2 IDC (Doepfer style) connector.

Included:
.black screws
.black fibre washers
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MRP:$172.10
coming soon $166.28
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ADDAC System ADDAC805.VS2 VC Signal Router Module (black faceplate)
Notes: Inspired by our ADDAC701 VCO waveform mixing section, our new VC Signal Router also updates our legacy X-Fade/Panner to a stereo configuration that also allows 4 quadrant mixing.

Featuring two dedicated X-faders and a stereo VCA that can also be used as a third X-Fader. All controls have their own CV inputs and dedicated Attenuverters for precision control.

4 quadrant mixing is achieved by using the stereo Master as a X-fader between left and right channels, this way you can plug 4 audio sources and sweep/crossfade between each and any of them using the 3 x-faders. Plug any 4 sources (4 waveforms of a VCO, 4 LFOs, 4 envelopes...) and sweep through morph through or have them all mixed together.

For other configuration types Left and Right X-fader channels can be routed through the Master stereo VCA or sent directly to the outputs. A stereo Direct input can also be routed through the Master VCA or sent straight to the outputs.

The Mono Sum output always mix Left and Right outputs together allowing the possibility to use the module as a peculiar 6 channel mono mixer.

It can be used for both Audio or CV Signals.

Tech Specs:
8HP
4.5 cm deep
40mA +12V
40mA -12V
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MRP:$172.10
coming soon $166.28
FORTHCOMING
AION Modular 902 Voltage Controlled Amplifier Module
Cat: 780138
 
voltage controlled amplifier module
Notes: The AION MODULAR 902 VCA is an Eurorack clone of the classic Moog Modular 902.

The 902 is a Voltage Controlled Amplifier with balanced directly coupled inputs and outputs.

The 902 VCA can be used in any circumstances a voltage controlled variation of gain is desired.
Both audio or CV sources can be modulated by this module.

Both linear and exponential gain response are avaliable.

Specifications:
Power: +12 (50mA), -12 (30mA)
Depth: 20mm
Doepfer compatible

50 mA +12V
30 mA -12V
0 mA 5V
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MRP:$235.70 SAVE 19%
coming soon $190.17
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AION Modular 911 Envelope Generator Module
Cat: 780140
 
envelope generator module
Notes: The AION MODULAR 911 Envelope Generator is an Eurorack clone of the classic Moog™ Modular 911.

The 911 Envelope Generator (ADSR) generates the Control Voltage contours required for producing envelopes in conjunction with a voltage-controlled amplifier or a voltage-controlled Filter.

Attack time (T1), Decay time (T2), and Release time (T3) are all independently variable over a 2 millisecond - 10 second range, making the module suitable for very fast percussive sounds or long and evolving sounds.

The 911 Envelope Generator can be triggered by an external gate signal via the Trigger Input or manually by a push button.

Specifications:
Power: +12 (30mA), -12 (15mA)
Depth: 20mm
Doepfer compatible
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MRP:$235.70 SAVE 19%
coming soon $190.17
Cat: 625062 Rel: 22 Sep 16
 
Mini Mod Discrete Cascaded VCA Module
MRP:$193.30 SAVE 20%
 2 in stock $154.85
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Cat: 625067 Rel: 22 Sep 16
 
Eurorack format dual envelope generator based on the original RA Moog design
Notes: Two independent Contour Envelope Generators in a single 12hp wide Eurorack module. These are very accurate replicas of the Model D contour generators, with identical circuitry and component values running on the correct +9.3V and -10v supply voltages of the original; so they exactly replicate the original envelope response along with all of it eccentricities. Extra features include manual trigger buttons and envelope status LED's.

The contour generators played a larger part in the sound of the Model D than many people realise. There are two factors that make them unique, firstly the exponential slope when is used in conjunction with the (near) linear slope of the original VCA which is responsible for the famous Model D "punch". Secondly, the re-trigger behaviour is quite unique, multiple retriggering increases the output level so that either the volume increases incrementally, or the filter opens incrementally with each extra key press.

AJH Synth have added independent Decay switches for each individual Contour Generator rather than the shared switch on the original synthesiser, these switches change the Contour response from AD (switch up) to ADSD mode (switch down).
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MRP:$261.89 SAVE 29%
 1 in stock $184.98
Cat: 708115 Rel: 22 Jan 19
 
MiniMod Glide + Noise, combining two Minimoog circuits in one module - 6HP
Notes: The original MiniMod Glide +Noise module was based exactly on the original Minimoog Model D circuitry, which was designed to be used with the built in Model D keyboard, and because of its vintage design its range was severely limited to 5 or 6 octaves, and it also responded to positive voltages only. Another limitation was that it would not return fully to zero when selecting long glide times, which restricted the range even more.

So we made the decision to re-design the MiniMod Glide + Noise using modern precision parts, and we have come up with an all new circuit which has exactly the same function, but with a hugely extended range. It has the same Glide slope characteristic (a slightly curved Linear Glide) as the Model D on which the MiniMod is based, however in response to many requests from customers we have adjusted the glide up and down speeds so that they are now very similar , which is much more useful in real world applications that the earlier MK1 version which (like the Model D) would glide up considerably faster than it would glide down.

The new Mk2 MiniMod Glide Noise module now has an impressive 14 octave range, and can respond to negative voltages down to -5V. This is a very useful feature, as our MiniMod VCO's will respond to negative control voltages and produce correspondingly low frequencies; so it is now possible to glide down quickly or slowly to crazy sub bass levels! The hold feature has been improved too, it covers the full audio range as well as DC control voltages, and works as a track and hold module with Eurorack signal levels.

A further enhancement is that the Mk2 module can now (using selectable jumpers) transmit or receive pitch CV to the Eurorack power bus; for example, the Glide CV Output can now be directed to the Bus in order to send CV's to (for example) three VCO's via the bus without the need for a passive multi and four patch cords!

The Noise section of the module is unchanged, except that we have slightly boosted the level of the Red Noise output to bring it more in line with Eurorack control voltage levels.

Lastly, it is much shallower - Mk1 Glide Noise had a depth of 54mm, and it was the only MiniMod module that was too deep to fit a skiff style case - and this prevented a full MiniMod system being installed into a shallow Eurorack case. The new MK2 version is only 28mm deep, so this allows both it and a full MiniMod system to be mounted into shallow skiff style Eurorack cases.

Dimensions: 6HP wide, 26mm Deep
Current draw: 36mA Positive, 38mA Negative
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MRP:$205.77 SAVE 18%
 1 in stock $168.36
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Cat: 708117 Rel: 22 Jan 19
 
MiniMod Glide + Noise, combining two Minimoog circuits in one module - 6HP
Notes: The original MiniMod Glide +Noise module was based exactly on the original Minimoog Model D circuitry, which was designed to be used with the built in Model D keyboard, and because of its vintage design its range was severely limited to 5 or 6 octaves, and it also responded to positive voltages only. Another limitation was that it would not return fully to zero when selecting long glide times, which restricted the range even more.

So we made the decision to re-design the MiniMod Glide + Noise using modern precision parts, and we have come up with an all new circuit which has exactly the same function, but with a hugely extended range. It has the same Glide slope characteristic (a slightly curved Linear Glide) as the Model D on which the MiniMod is based, however in response to many requests from customers we have adjusted the glide up and down speeds so that they are now very similar , which is much more useful in real world applications that the earlier MK1 version which (like the Model D) would glide up considerably faster than it would glide down.

The new Mk2 MiniMod Glide Noise module now has an impressive 14 octave range, and can respond to negative voltages down to -5V. This is a very useful feature, as our MiniMod VCO's will respond to negative control voltages and produce correspondingly low frequencies; so it is now possible to glide down quickly or slowly to crazy sub bass levels! The hold feature has been improved too, it covers the full audio range as well as DC control voltages, and works as a track and hold module with Eurorack signal levels.

A further enhancement is that the Mk2 module can now (using selectable jumpers) transmit or receive pitch CV to the Eurorack power bus; for example, the Glide CV Output can now be directed to the Bus in order to send CV's to (for example) three VCO's via the bus without the need for a passive multi and four patch cords!

The Noise section of the module is unchanged, except that we have slightly boosted the level of the Red Noise output to bring it more in line with Eurorack control voltage levels.

Lastly, it is much shallower - Mk1 Glide Noise had a depth of 54mm, and it was the only MiniMod module that was too deep to fit a skiff style case - and this prevented a full MiniMod system being installed into a shallow Eurorack case. The new MK2 version is only 28mm deep, so this allows both it and a full MiniMod system to be mounted into shallow skiff style Eurorack cases.

Dimensions: 6HP wide, 26mm Deep
Current draw: 36mA Positive, 38mA Negative
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MRP:$193.30 SAVE 17%
 1 in stock $160.04
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Cat: 584252 Rel: 15 Apr 16
 
12bit digital drum voice synth module with full voltage control and an analog EQ output path - 12HP wide
Notes: Dinky's Taiko' is a 12 bit digital drum voice with full voltage control and an analog EQ output path.

The drum voice consists of 3 parts; a digital noise source with controllable frequency and release time, a wavetable oscillator with start and end frequency settings together with a variable rate (and release time, and finally a mix and tone control for the audio output. All settings, bar the tone control, are both direct and voltage controllable.

The drum voice includes a trigger input as well as accent and choke trigger inputs to add further expressive and rhythmic control.
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 2 in stock $195.38
Cat: 679163 Rel: 09 Mar 18
 
Eurorack recreation of classic sampler filter with added resonance & voltage control
Notes: 'MUM M8' is an 8hp Eurorack low pass filter building on the filter design used in the classic Akai S950 12 bit sampler with the addition of resonance, voltage control, clipped saturation and a dedicated VCA.

The low pass filter gives the recognisable super smooth vacuum like tone sucking sound which works magic on complex sources. The addition of clipped overdrive and intentionally aggressive self-oscillating resonance compliment the smooth filter core by juxtaposing it into more wasp like territory with acidic squeals and a more gritty sound.
Mum M8 features dual voltage control with attenuation (and inversion) of filter cut off and voltage control of resonance together with dual audio inputs - one of which includes a VCA to with the capability to aid overdriving signals into the filter core.

The filter core is a 6th Order Butterworth switched capacitor type design featuring an analog core but controlled by a high speed digital clock. This produces the characteristic smooth sounding filter but, as with the original S950, has a relatively high minimum cut off as to avoid 'clock bleed' into the filter output from the digital control. This minimum cut of point (and introduction of bleed if required) can be controlled via trimmers on the rear of the module (see calibration chapter). It is not unusual for there still to be some low-level artefacts from the clock present, particularly during filter sweeps - these add to the filters character.

The motivation for the module came from discussing filters in classic samplers with the artist Jack Adams - aka Mumdance. Jack suggested investigating the S950's filter well known as for it use in classic use in early jungle and hardcore. From that point onward Jack provided inspiration, help and feedback in the development of the filter. Big up Mumdance.
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 6 in stock $180.83
Cat: 584259 Rel: 15 Apr 16
 
High quality quad linear voltage controlled amplifier (VCA) synthesiser module - 8HP wide
Notes: 'Tangle Quartet' is a high quality quad linear voltage controlled amplifier (VCA) providing individual level control of 4 signal inputs with both individual outputs and a combined 'mix' output (for non patched outputs) . Control signal inputs and associated attenuation controls allow for voltage control of signal levels. Control inputs are normalised to 5v thus providing manual mix control in the absence of control signals.

Technical Specifications:

Supply: +/-12V (Reverse voltage protection)
Current Draw: ~80ma
Size: 8 HP
Depth: 32mm (including power header)
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 5 in stock $165.24
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FORTHCOMING
Analogue Systems RS-100N Lowpass Module
Cat: 777029
 
low pass filter module
Notes: This low pass filter is a very good -24dB/octave Moog filter, based on the classic Moog cascade with selected, low-noise transistors. Being the successor of the RS-100, the new "S" version features several improvements regarding stability, tracking, distortion behavoiur and also the frequency range.

Two signal inputs, resonance, manually and voltage controlled cutoff frequency. Frequency range 10Hz to 35kHz with CVs applied. The transistors used in the filter cascade are low-noise and have been selected and matched in pairs to improve the frequency response over the whole frequency range. A better stability guarantees, after a one minute heating time, that the filter can be used as a clean and well tracking sine wave oscillator.
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MRP:$213.25 SAVE 12%
coming soon $187.05
FORTHCOMING
Analogue Systems RS-60N Envelope Module
Cat: 777035
 
envelope module
Notes: Flexible ADSR envelope with voltage control of decay and release times. Interesting hold and repeat functions turn the envelope into a LFO with gating functions. Classic ADSR type envelope generator. Decay and release times can be voltage controlled via a common input for positive CVs between 0 and 10V. Time ranges of the segments: Attack: 0,5mS to 10S; Decay: 2,5mS to 20S; Release: 2,5mS to 20S.

Two switches affect the behaviour of the RS-60 in different ways:

- STD/STD: Normal ADSR mode. A gate triggers and holds the envelope up to the release phase.

- HOLD/STD: hold will hold the envelope at sustain level. Signals in the gate input have no effect. A signal at the Trig/Retrig-In restarts the AD phase and keeps the envelope at sustain level until the next trigger.

- ONESHOT/STD: Press the swithc into oneshot position and you´ll fire the envelope once. trigger signals at the Trig-Retrig-In will restart th envelope only when oneshot switch is pressed.

- HOLD / GATED REPEAT and HOLD / AUTO REPEAT have the same effect. Attack and decay phases will be repeated and the module acts as a LFO. Rate is dependent on the A/D times and range from 0.003Hz to 300Hz. A gate at the Trig-Retrig-In holds the signal at 10V, without gate the LFO continues cycling.

- STD / GATED REPEAT: The envelope will onbly be looped when a gate signal is present at the Gate-Trig-in

- STD / AUTO REPEAT: A gate at the Trig-Retrig-In holds the signal at 10V, without gate the LFO continues cycling.

- ONE SHOT / GATED REPEAT and ONE SHOT / AUTO REPEAT have the same effect. The oneshot switch generates a gate and fires the envelope. A gate at the Gate-Trig-in will hold the envelope at 10V, without gate the envelope will be looped. The envelope signal is present at two outputs A and B and it´s level can be controlled and inverted with a potentiometer.
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MRP:$207.02 SAVE 12%
coming soon $181.86
Cat: 714519 Rel: 25 Jan 19
 
Gritty sounding delay effect with open feedback path - 10HP
Notes: The Coma Reactor module from Animal Factory Amplification is an innovative delay with a variety of sonic possibilities.

It is based on a PT2399 delay chip and offers amazing routing and sound design options.

The Coma knob is an attenuator for the input signal. Low levels can generate funny noises. The input signal is mirrored at the Thru output, for further processing with another module.

There are separate dry and wet potentiometers to adjust the desired effect amount.

The delay time ranges from 30 to 2000 ms. It can be controlled manually via the Time knob or with control voltage thanks to the MOD input, which is equipped with an attenuverter and a switch for setting the amount of modulation. Furthermore there is a LED which indicates the CV polarity.

The delay features a feedback knob for controlling the repeats. Turned fully clockwise it will bring up self-oscillation.

Thanks to an integrated send/return path it is possible to use the module with external effects. The volume of the external effect is controlled by the Return potentiometer. If nothing is connected to send/return, the delay signal is routed internally through a crude twin-T Bandpass Filter. The effected signal can be fed back into the delay circuit thanks to a dedicated Return Feedback knob.
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 1 in stock $164.21
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Cat: 689667 Rel: 14 Jun 18
 
Probabilistic & pingable burst generator - 8HP
Notes: Burst is a Pingable Trigger Burst generator with distribution, probability and time division control. It will create multiplications of your triggers, leading to doubles, triplets, quintuplets and true polyrhythms for your modular system.

The module allows you to add voltage controlled redrums and dynamic ratcheting effects for your patches. In addition, Burst works like a regular clock source and trigger for other modules via its Tempo and End of Cycle outputs.
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MRP:$210.76 SAVE 22%
 4 in stock $165.24
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Cat: 668629 Rel: 09 Nov 17
 
2 axis CV generator/attenuverting joystick
Notes: The Joystick is a compact two axis attenuverting (attenuator-inverter) joystick controller.

The Joystick features a robust arcade style joystick for manually generating either CV with Range and Offset control or attenuating two input signals. It also includes two push buttons to manually generate gates.

- Current needs: +12V: 25mA, -12V: 10mA
- Width: 12 HP
- Depth: 35 mm (inc. power connector)
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MRP:$198.29 SAVE 21%
 1 in stock $155.89
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quote 668629
BLM Arcade Kick Module (synth module)
Cat: 774017 Rel: 13 May 20
 
kick module
Notes: This product is used to produce drum and percussion sounds. You can make 909 type of kick drums- the toggle switch on the left chooses between long and short vca decay. The toggle switch on the left chooses long and short pitch envelope decay. Smack knob control lefts you mix in a noise 'paper' sound for the drum.

You can mix in two trigger sources to create complex percussion patterns. The internal circuit is using logic 'OR' triggering.

This product was refined for optimum sound and response from the controls. Part values were changed from the original 909 design.

-There is onboard distortion to get techno type of kick drums.

-This internal oscillator is triangular core, with internal reset.

-The internal trigger conditioner can take audio rate frequencies.

-There is a manual push button.

Width: 10hp

Current: +30mA,-24mA
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MRP:$195.79 SAVE 17%
 1 in stock $163.16
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Cat: 783142 Rel: 13 May 20
 
B-STOCK: Box opened, product in perfect working order
Notes: ***B-STOCK: Box opened, product in perfect working order***


Excellent stereo/dual mono delay module. CV inputs allow you to control the delay times independently, allowing for some creative modulation effects.

Supplier notes:
This module has two echo delay effect circuits based on the Dwarf Star Semi Modular system. With this module you can add cool delay fx to synth level signals. Each of the parameters has CV control with their own attenuators. There are three parameters per channel. The two echo fx circuits are mirrored on the front panel: Channel A and Channel B.

The fx processing was fine tuned for clean fx processing. You can however patch a cv input into the 'REPEAT' parameter, have the RCV attenuator fully clockwise, and force it to feedback into loud trash. There is no switch jack on the input jacks. However, all the CV jacks have switch jack internal connections. This allows you to modulated both channels using only the the Channel A side. For true independent patching on each separate channel simple patch something into the corresponding Channel B jack.

The Kill toggle switches kill the dry signal input going into the pt2399 fx chip. It will however allow echo trails to keep going until they die out. So this is not just a mute switch to abruptly cut the echo trails in halfm which is potentaially better for live manipulation and recording.

The module also features onboard head phone monitoring. You can also use a JBL portable speaker or any other charger type portable speaker to hear your modular using a 3.5mm stereo cable. There is also a new spread parameter and fx bypass push button for live use.

width: 18hp
current: 10mA, -6mA
depth: 1.5 inches
FX Chip: PT2399.
Signal Levels for In/Outs: modular synth levels -5/+5.
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 1 in stock $171.53
Cat: 783152 Rel: 13 May 20
 
B-STOCK: Box opened, product in perfect working order
Notes: ***B-STOCK: Box opened, product in perfect working order***


Excellent stereo/dual mono delay module. CV inputs allow you to control the delay times independently, allowing for some creative modulation effects.

Supplier notes:
This module has two echo delay effect circuits based on the Dwarf Star Semi Modular system. With this module you can add cool delay fx to synth level signals. Each of the parameters has CV control with their own attenuators. There are three parameters per channel. The two echo fx circuits are mirrored on the front panel: Channel A and Channel B.

The fx processing was fine tuned for clean fx processing. You can however patch a cv input into the 'REPEAT' parameter, have the RCV attenuator fully clockwise, and force it to feedback into loud trash. There is no switch jack on the input jacks. However, all the CV jacks have switch jack internal connections. This allows you to modulated both channels using only the the Channel A side. For true independent patching on each separate channel simple patch something into the corresponding Channel B jack.

The Kill toggle switches kill the dry signal input going into the pt2399 fx chip. It will however allow echo trails to keep going until they die out. So this is not just a mute switch to abruptly cut the echo trails in halfm which is potentaially better for live manipulation and recording.

The module also features onboard head phone monitoring. You can also use a JBL portable speaker or any other charger type portable speaker to hear your modular using a 3.5mm stereo cable. There is also a new spread parameter and fx bypass push button for live use.

width: 18hp
current: 10mA, -6mA
depth: 1.5 inches
FX Chip: PT2399.
Signal Levels for In/Outs: modular synth levels -5/+5.
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 1 in stock $171.53
Cat: 775744 Rel: 13 May 20
 
joystick module
Notes: This is a nice small joystick to add some control to your modular. The joystick is acting as an attenue-inverter. At center position is zero. Swinging the joystick side to side gives + or -. There are two attenue-inverters, one for each axis. When nothing is patched into the 'input' jack, the joystick is using an internal reference voltage (7v). You can use that to control a fitler module for example.When you patch a vco or lfo into the input jack you can add some fm to another external vco and have control over the FM with the Joystick.The joystick also has a push button. The gate out jack allow you to trigger your other modules that don't have manual trigger control.
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MRP:$210.76 SAVE 22%
 1 in stock $165.24
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Cat: 773981 Rel: 13 May 20
 
LFO module
Notes: This module contains about 5 modules in one. You get a lot of features. This is using a Phase Lock Loop based internal patch to create the oscillation (LFO). I then give you access to the clock divider used in the Phase Lock process.

This LFO can go audio rate or really slow using the toggle switch to decide LFO/HFO mode. There is an internal CV switch for you to select from 6 wave forms. The special wave form is the step generated wave. It sounds like a quantized ramp wave, and moves at half the overall internal lfo rate. There is a nice Level out knob to control the LFO wave output. This LFO has very HARD sync, that will reset the LFO.

The other half of this module contains a clock divider that also uses a CV selectable output. The clock divider can also go audio rate and sound like a sub harmonic generator when in audio rate. At very high frequencies (FREQ knob fully clockwise), the clock divider will lock up, this is due to the cmos chip.

The clock divider can be used with internal clock or external clock.

This is a fun performance type of lfo with just about all the features an LFO should have. There is 1v/ octave tracking of about 4 octaves when used as an oscillator. This product is for most part more of an LFO. The best patch one can do with this product is a 'cross' patch from the Phobos Lunar LFO, and have it patched to your Oscillator module. Then patch your oscillator to the CV waveform select on the Phobos.
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MRP:$235.70 SAVE 17%
 1 in stock $196.42
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FORTHCOMING
Division 6 Dual Mini Sequencer V2 Module (black faceplate)
Cat: 777964 Rel: 06 Jul 20
 
sequencer module
Notes: The Division 6 Dual Mini Sequencer gives you two handy little sequencers behind one Eurorack panel. Why would you need more than one sequencer? Why would you need mini sequencers?

More sequencers = more steps
Use one for playing notes and the other for transposing those notes
Can be used as a clock divider
Run in parallel for multiple CVs / triggers
Each one gives you the standard CV and gate out, plus an ACC out (Accent? Accessory?) Use it to open up a filter, enable a glide, trigger a drum, or whatever you can think of.

The two sequencers will run completely independently, or you can daisy-chain them using the XP IN/OUT jacks to create sequences of any length.

Each sequencer has its own internal clock to get you up and running in a hurry, but you can connect an external clock if you need greater control of tempo or want to sync with other devices.

The module stores your latest sequence even when the power has been removed (plus some other ones in v2!).

While this kit is designed to give you a Eurorack module, the PCB patterns for the jacks also have holes that will accept Johnson/Cinch-style banana jacks. There are also standoff holes on the main PCB, so you can mount them behind your own custom panel.

This module has lots of LEDs and is very shiny, but only two of them are ever on at a time which keeps it from loading down your power supply.

Inputs:
CLK IN (External clock input)
XP IN (Expansion input; Starts sequencer back at step 1. Use for daisy-chaining multiple units)

Outputs:
XP OUT (Sends pulse when sequencer goes past last step. Use for daisy-chaining multiple units)
CV OUT
GATE OUT
ACC OUT (Can be programmed on or off in each sequence step)

Power supply: +12VDC (reverse-polarity protected!).
Power supply (Optional): +15VDC
Current draw: 30ma (+12V) / 0ma (-12V) / 0ma (+5)
Width: 18HP
Depth: 0.83in / 21mm
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MRP:$239.44 SAVE 19%
coming soon $193.29
Cat: 676691 Rel: 21 Sep 18
 
Polyphonic filter with four identical 24dB Lowpass filters 8HP
Notes: A-105-4 is our first polyphonic filter and contains four
identical 24dB Lowpass filters (SSM2044 type). It has
available common manual controls and CV inputs with
attenuators for these parameters:

Frequency (F)

Frequency Modulation Intensity (FM)

Resonance (Q)

Audio Input Level (L)
Each filter has available a separate FM input as well as an Audio Input and Output. The FM input is typically connected to the output of the associated envelope generator (e.g. A-141-4).
The envelope amount for all four filters is controlled by the FM knob and the CVFM input by means of four built-in VCAs, which are controlled by the FM control and CVFM input. This allows also voltage control of the envelope amounts.

In addition common frequency modulation for all filters is possible (e.g. by an LFO). For this the CVF input with attenuator can be used. The range of the audio input level control (L) allows also clipping/distortion with typical A-100 audio levels
(e.g. from A-111-4) at the filter inputs. Even this parameter is voltage controllable as well as the resonance (Q).
Application: polyphonic patches (four VCFs with same parameters).
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Cat: 692510 Rel: 19 Jun 18
 
Classic Moog voltage-controlled lowpass filter - 12HP
Notes: Module A-108 is a completely new voltage-controlled low pass filter based on the well-known transistor ladder (Moog ladder). The module has internally an 8-stage low pass filter with different slopes available: 6, 12, 18, 24, 30, 36, 42 and 48 dB per octave. In addition, it features a band pass output (i.e. band pass with transistor ladder). In the factory, the 4 low pass outputs of the A-108 are internally connected to the filter stages 6, 12, 24 and 48dB.

Resonance (Emphasis or Q) can be adjusted manually right up to self-oscillation, in which case the filter will behave like a sine wave oscillator. The A-108 features an external feedback input that enables the insertion of additional modules into the feedback path (e.g. VCA for voltage-controlled resonance or phaser/frequency shifter for phase/frequency shifting effects). The socket is normalized and internally connected to the 48dB low pass output if no cable is inserted into the feedback socket.

The frequency can be adjusted manually, or by voltage control. Three CV inputs (CV1, CV2, CV3) are available. CV2 and CV3 are equipped with attenuators.

The filter audio input is very sensitive so that distortion - if desired - is possible even with normal A-100 levels (e.g. VCO output). Self-oscillation will break off at high distortion levels as the internal feedback signal is drown out by the distorted audio signal. This feature may intentionally be used to create new sounds.

In combination with the Voltage Controlled Mixer A-135 and the Morphing Controller A-144 a filter with voltage-controlled slope can be realized (i.e. controlling the slope from 6dB to 48dB via CV).
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 2 in stock $154.84
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Cat: 671595 Rel: 29 Nov 17
 
Thru Zero VCO - uses quadrature trapezoid as the fundamental waveform
Notes: A-110-6 is a Trapezoid Thru Zero Quadrature VCO. The module is based on an idea by Donald Tillman from 2003 but has been revised for the use of modern electronic circuits (no OTAs/CA3280). Because of its unique trapezoid core it's totally different compared to other VCOs. But the trapezoid core is not the only specialty: it is also a quadrature VCO and features linear thru zero frequency modulation.

The term "quadrature" means in this connection that the oscillator outputs two trapezoid waves with 90 degrees phase shift. The same as sine and cosine of a standard quadrature oscillator like the A-110-4 or A-143-9. These waveforms are called TRASIN (trapezoid sine) and TRACOS (trapezoid cosine).

The term "Thru-Zero" means that even "negative" frequencies are generated. But this a bit a misleading term as negative frequencies do not really exist. "Negative" means in this connection simply that the TRASIN/TRACOS waves will stop when the linear control voltage reaches 0V and continue with the opposite directions as the linear control voltage becomes negative and vice versa.

The module has two control sections: linear and a exponential. The exponential section consists of the XTune control, the 1V/Oct input and the XFM input with the corresponding attenuator XFM. The exponential control voltage is the sum of these three voltages. The linear section consists of the LFrq control and the LFM input with the corresponding attenuator LFM. The linear control voltage is the sum of these two voltages. A dual colour LED is used to display the polarity of the linear control voltage. The pitch of all outputs is determined by the control voltages of both sections. The linear section is used to control the pitch in a linear manner. When the LFrq control (LFrq means Linear Frequency Control) is fully CW the module works like a normal VCO and the LED lights red. The pitch is then controlled by the exponential section with the manual Tune control XTune and the exponential frequency control inputs 1V/Oct and XFM. 1V/Oct is used to control the pitch by a 1V/Oct CV source (e.g. sequencer or Midi/USB-to-CV interface). XFM is used to apply an exponential frequency modulation with adjustable depth (e.g. from an LFO or another VCO). As the LFrq control is turned counter-clockwise starting from the fully CW position the frequency is lowered in a linear manner until the TRASIN/TRACOS waves (nearly) stop at the centre position of LFrq (provided that no LFM signal is present). As the LFrq control is moved from the centre towards the CCW position the waves start again but into reverse direction and the LED turns yellow. When the fully CCW position of LFrq is reached the module works again like a normal VCO. But much more exciting is the usage of the LFM input to modify the linear control voltage by an external control voltage (typically another VCO). Linear modulation by another oscillator using the thru zero feature in combination with the trapezoid waveforms generates audio spectra than cannot be obtained from any other oscillator without the thru zero function. The reason is that a "normal" VCO will simply stop as the linear control voltage becomes zero or negative. But a thru zero VCO will start again with "negative" frequencies as the linear control voltage becomes negative.

Other waveforms like triangle, sawtooth, rectangle and sine can be obtained from the TRASIN/TRACOS signals (triangle e.g. simply by subtracting TRISIN and TRICOS, SAWSIN and SAWCOS by switching the other waveforms). All five waveforms are available as quadrature pairs (i.e. with 90 degrees phase shift):

- Trapezoid (TRASIN + TRACOS)
- Triangle (TRISIN + TRICOS)
- Sinus (SIN + COS)
- Rectangle (RECSIN + RECCOS)
- Sawtooth (SAWSIN + SAWCOS)

By means of a toggle switch the frequency range can be selected between VCO (audio range) and LFO. In LFO range the frequencies are about 1/100 compared to VCO mode.

A dual-colour LED display the polarity of the linear control section. Another dual-colour LED shows the signal TRASIN which is helpful in LFO mode.

Technical note regarding linear FM: The LFM CV input is DC coupled. If the input is used for linear FM in audio range and the signal applied to this input has a DC offset it will cause a small pitch shift that depends upon the value of the DC voltage. Especially when a VCA is used to change dynamically the level of the modulation signal this may generate a pitch shift caused by the control voltage feedthrough of the VCA. The control voltage feedthrough adds a DC voltage at the output which depends upon the control voltage of the VCA. For this application VCAs with a very low CV feed though should be used or the signal output of the VCA should be AC coupled to the LFM input of the A-110-6 (e.g. by inserting a capacitor).
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 1 in stock $196.76
Cat: 731937 Rel: 15 Nov 19
 
Complete miniature monophonic synthesiser module - 10HP
Notes: 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)
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 2 in stock $167.31
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quote 731937
Cat: 749811 Rel: 15 Nov 19
 
Complete miniature monophonic synthesiser module - 10HP
Notes: 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)
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 7 in stock $177.70
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quote 749811
Cat: 783031 Rel: 15 Nov 19
 
B-STOCK: Box opened, product in perfect working order
Notes: ***B-STOCK: Box opened, product in perfect working order***


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)
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 1 in stock $165.17
Cat: 707079 Rel: 23 Oct 18
 
Triple resonance filter unit - 28HP
Notes: Module A-127 is a triple resonance filter unit. It contains three separate voltage-controlled band pass filters. Each filter has its own LFO (triangle waveform) with LED display and adjustable frequency and amplitude. Instead of the internal LFO an external control voltage may be used to control the filter frequency. In this case the external voltage is fed into the external CV jack (with integrated switch to turn off the LFO signal) and the amplitude control of the LFO affects the level of the external CV signal. Each filter is equipped with the following controls: LFO frequency, LFO/external CV amplitude, filter frequency, filter resonance and filter amplitude. In addition to the mix output for all three filters each filter has a separate audio output. The original audio signal can be added to the triple filter mix signal with a separate control. All 3 filters share a common audio input with attenuator. The filter audio inputs are very sensitive so that distortion may intentionally be used to create new sounds - if desired.

The frequency control range of the bandpass filters is about 40Hz...6kHz, the frequency range of the LFO's is about 0.02Hz...20Hz (= 1 min ... 1/20 sec per cycle).

Each of the three filters can used also as a 12dB low pass (with resonance control) instead of band pass. For this a jumper has to be changed on the filter board in question. In this case the module can be called no longer "resonance filter" but "triple low pass filter". It is also possible to modify only one or two of the filters to low pass.
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 1 in stock $163.16
Cat: 734880 Rel: 10 Jul 19
 
Envelope module with two ADSR voltage controlled enevelope generators - 8HP
Notes: The module contains two ADSR type voltage controlled envelope generators with exponential curve shapes (charge/discharge curves of a capacitor) behind a front panel with 8 HP only.

Each ADSR provides these controls and in/outputs:

- LED (displays the envelope output)
- A: manual Attack control
- D: manual Decay control
- S: manual Sustain control
- R: manual Release control
- Gate Input
- Retrigger Input
- CVT Input with attenuator (CVT = CV Time)
- Envelope Output 1
- Envelope Output 2

The output voltage range for each envelope is 0 - 10V (10V = attack peak).

The time range of Attack/Decay/Release is about 1ms to 30s.

By means of internal jumpers one can select which time parameters are controlled by the CVT input (e.g. D only or D+R or A+D+R) and in which direction (i.e. if an increasing CVT shortens or stretches the time parameter in question).

Socket CVT can be normalled to an internal fixed voltage (i.e. the switching contact is connected to an internal fixed voltage). That way it's possible to change all time parameters simultaneously by means of the CVT control.

Another jumper is used to set output 2 to normal or inverted envelope.

And another jumper is used for the normalling of Gate 2 to Gate 1 (i.e. ADSR#2 is also triggered by Gate 1).

Two more jumpers are used for the optional bus access to the gate signal of the bus for each ADSR.
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 4 in stock $153.80
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Cat: 738634 Rel: 09 Jul 19
 
Quad AD-generator with four independent Attack-Decay envelopes - 28HP
Notes: Module A-143-1 is a complex envelope generator that consists of Attack/Decay generators. For the complex envelope generator the four units are daisy-chained, i.e. the preceding unit triggers the following unit. The four units can be used even as four separate AD generators (switch position AD) or AD-type LFOs (switch position).

Details: Module A-143-1 contains four separate attack/decay type envelope generators. Each unit can be switched into a free running mode (LFO mode). The LFO mode differs in several points from a regular LFO (like A-145, A-146 or A-147): The slopes are exponential - in contrast to linear slopes of a normal LFO, and the frequency is defined by both controls. The attack control defines the time of the rising slope, the decay control the falling slope.

Each unit has available a comparator that compares the AD output voltage with a manually adjustable threshold and switches the corresponding comparator output (Cp 1...4) to "high" as soon as the AD output voltage goes in the decay phase below this value. The comparator output is normalled to the trigger input of the next stage via the switching contact of the trigger input socket. Consequently the first unit triggers the second, the second triggers the third and so on.

Each AD generator is equipped with a Polarizer (look at the Voltage Controlled Polarizer A-133 concerning details about the polarizer function) and a mixer that adds up all polarizer outputs. This allows to add up all AD/LFO output signals inverting or non-inverting with adjustable level to the mix output. Additionally a single output (Env 1...4) is available for each unit.

If the trigger input of unit 1 is controlled by a normal gate signal (e.g. from a keyboard resp. MIDI-to-CV/Gate interface) one obtains a very complex envelope signal at the mix output. The signal contains 8 segments controlled by Attack 1, Decay 1, Attack 2, Decay 2, Attack 3, Decay 3, Attack 4 and Decay 4. The transition between the stages (i.e. when the following AD generator is triggered) is controlled by threshold knob. The positive or negative contribution of each unit to the mix signal is adjusted with the Mixing Polarizer control. If the trigger input of unit 1 is controlled by the comparator output of unit 4 one obtains a 8 stage LFO.

The single AD outputs can be used to control VCAs or VCFs that open one after another corresponding to the AD signals (a little bit similar to the Shepard generator A-191).

The default-connection between the four units (CPn = Trig.n+1) can be interrupted by patching cables into the trigger inputs. Consequently the four units can be used as separate AD generators or LFOs. In any case the mix signal is available (e.g. mix of four AD generators or LFOs with adjustable level and sign).

In the LFO mode the comparator output serves as LFO rectangle output with adjustable pulse width (= threshold control).

Each unit is equipped with a separate LED display for envelop and comparator output. The shortest attack/decay time is about 5 ms, the longest attack/decay times are about 3 seconds (attack) / 10 seconds (decay). By changing the value of a capacitor the shortest time can be modified (details can be found here: A100_Capacitors.htm).

The sketch at the bottom of the page shows the module principle with 4 daisy-chained AD units (as predetermined by the normalled sockets), that are mixed with the integrated polarizing mixer.
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 5 in stock $166.28
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Cat: 745783 Rel: 09 Sep 19
 
Controller unit for the A-155 sequencer
Notes: Module A-154 is a supplement to the A-155 Analog/Trigger Sequencer module. It offers a lot of new features that are not available in the basic control unit of the A-155. The A-154 is used to replace the control unit of one or two A-155, i.e. the section marked "Control" with Start / Stop / Step / Reset buttons and inputs in the upper left corner of the A-155 front panel. If the A-154 is used to control the A-155 the control section of the A-155 is put out of action.

These are the features of the A-154:

Several running modes: forward, backward, pendulum, random, CV controlled step adressing. All modes are available as loop or one-shot.

LED display of the 5 different current modes and one LED for loop/one-shot display

Manual and voltage controlled selection (with attenuator) of the running mode. If no external control voltage is applied one of the 10 modes (5 modes x 2 loop/one-shot) is simply selected with a rotary knob. The CV input with attenuator is used to modulate the running mode with an external control voltage (digital high/low CV to switch between two modes or continuous analog CV to sweep through different modes). With the combination of manual control and CV with attenuator it is possible e.g. to use only two neighbouring modes (e.g. forward/backward) or sweep through all possible running modes

Manual and voltage controlled selection (with attenuator) of first and last step of the sequence. The range is step 1...8 in 8 step mode resp. 1...16 in 16 step mode

If the running mode "CV Controlled Step Address" is selected the First Step section is used to determine the active sequencer step. Consequently manual and voltage controlled selection (with attenuator) of the active step is possible: the active step can be set by hand with the first step manual control and then modulated by an external control voltage (e.g. LFO, Random, S&H, Theremin, Light CV source, Joy Stick) at the first step CV input (with attenuator).

An internal voltage controlled clock generator with manual and CV control (with attenuator) is available. The output of the clock generator is displayed with a LED and is used as sequencer clock provided that no external clock signal is connected to the Clock In socket (normalled socket). If the CV input of the Clock section is connected to one of the analog outputs of the sequencer the time for each step can be set separately. Even jumps (or skipping) will be possible as we will introduce the feature that a very short clock pulse will be generated if the control voltage exceeds a certain value. For example the gate row of the A-155 can be used to obtain skipping of steps: the gate output simply has to be conneted to the CV input of the A-154 clock generator. If the corresponding switch of the A-155 is set correspondingly in the gate row the step will be skipped.

Manual and voltage controlled (with attenuator) pulse width (PW) of the clock signal. This features can be used to obtain a different gate length for each step: e.g. one of the CV outputs of the A-155 can be used to control the PW. With a PW control voltage coming from a LFO/random/S&H the gate length will change automatically. CV coming from Theremin A-178, ribbon controller A-198, light controlled CV A-179, joy stick A-174 are other ways to control the gate length.

8/16 step mode: A toggle switch us used to select 8 or 16 steps. The "16 step" mode requires two A-155 and one or more voltage controlled switches (e.g. A-150-1 or A-150-8). The voltage controlled switches are controlled by the "A3" output of the A-154. This output remains "low" as long as the active step is in the range 1...8 and turns to "high" in the range 9...16. The voltage controlled switches are used to switch between the CV/trigger/gates outputs of the first A-155 (step 1...8) and the second A-155 (step 9...16). In the A-154 user's manual the corresponding patch is shown.

If two A-155 are used they can work in parallel (8 steps) or serial (16 steps). The 8/16 steps switch determines if the 8 step mode (one A-155 or two A-155 in parallel) or the 16 step mode (two A-155 serial) is chosen. Both modes work with CV controlled step addressing too (see below). In 8 step mode only the steps 1...8 are addressed, in 16 step mode the steps 1...16. For serial operation an additional VC switch (A-150) is required - as mentioned above.

The functions of the Start/Stop/Step/Reset buttons and inputs are the same as for the "old" control unit of the A-155:

A high level at the Start input or operating the Start button starts the sequence from the momentarily addressed step. Not working in "CV controlled step address" mode.

A high level at the Stop input or operating the Stop button stops the sequence (the last active step remains addressed). Not working in "CV controlled step address" mode.
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 1 in stock $174.58
Cat: 671557 Rel: 29 Nov 17
 
Module combo allowing musicians to start/stop sequences, transpose patterns, trigger modulators & much more
Notes: A-173-1/2 is a module combo that is used to generate a manually controlled 1V/Octave CV signal and up to 15 manually controlled gate/trigger signals. Typical applications are the transposition of a sequence by means of the CV output (without the need of an external keyboard and CV interface) and the manual generation of gate signals for start, stop, envelope generator triggering and other trigger tasks.

A-173-1 is the transmitter module and is made of a 1 1/2 octaves micro keyboard and a three-position octave switch.

A-173-2 is the receiver module and generates several gate/trigger signals and a 1V/Oct. CV signal. The upper section of the module is used for the gates which are controlled by the corresponding buttons of the A-173-1. Each output can be programmed as gate (pressing/releasing the corresponding key turns the gate on/off) or toggle (pressing the corresponding key changes the state). The state of each output is displayed by an LED. The lower section of the module is used the generate a 1V/Oct. CV signal and gate signal in the usual way.

By means of the learn feature of the A-173-2 (i.e. defining the key for 0V CV) a few buttons can be separated from the CV generation section so that these buttons only control gate/trigger outputs without affecting the CV. That way e.g. start/stop or other triggers become independent from the CV section. For example, it's possible to separate the lower five buttons (G to B) from the CV generation and use these buttons only for the generation of gate signals. For this the lower C has to be defined as lowest key for the CV generation.

The modules communicate via standard midi note on/off messages and are connected internally by means of a 2-wire cable. That way the modules can be mounted at different positions within the case.
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 1 in stock $164.19
Cat: 755393 Rel: 13 Nov 19
 
Analogue delay module - 14HP
Notes: The A-188-1 series bases on a so-called bucket brigade device (BBD) that has been used in the pseudo-digital delays of the 1980s.

The version with 512 stages provides a delay time of 1.02 - 512 ms.

The module is not an entire delay but only its core with all anomalies (e.g. cross talk of the internal clock frequency), and its very independent spacey and raw sound.

There are modulation possibilities with invertible polaritiy, a dry/wet control, feedback up to self-oscillation and a feedback loop with insert.
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 1 in stock $169.39
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