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Synth modules

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Cat: 732819 Rel: 21 Oct 19
 
Audio repeater synth module - 16HP
Notes: Freaky stereo digital delay from the Eurorack gods at Make Noise. Typically creative stuff, packed full of interesting features for creating complex echoes, modulating sounds and generating loops.

Supplier notes:
The Mimeophon music synthesiser module is a stereo, multi-zone colour audio repeater by Make Noise and soundhack, coded by Tom Erbe.

The Mimeophon (from Greek mimeo (repeat/copy) and phon (sound)) is a modern take on various historical sound copying, echo and repeating devices. It allows for Stereo modulations of Time, Space and Timbre of Mono or Stereo sound sources. The Mimeophon is capable of modulating and morphing time scales of repeated sound from micro-sound to note to phrase length while also colouring and spatializing the repeats.
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 More than 10 in stock $365.98
Cat: 734890 Rel: 15 Oct 19
 
Multi effects module - 6HP
Notes: Milky Way is a multi effects module with stereo signal flow. Its algorithms are already known from the Blck_Noir and the Grand Terminal.

- Simple and effective 6hp stereo* FX module
- Comes with "T.F.D" firmware installed: 16 types of effects are available, sorted in two banks
- Meta CV effects scanning
- Volume control with VCA

*depending on the effect type
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 3 in stock $179.75
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quote 734890
Cat: 734886 Rel: 15 Oct 19
 
Stereo filter with voltage controlled resonance - 6HP
Notes: Versatile stereo digital filter based on Endorphin's Grand Terminal module. CV-controlled cutoff, resonance and separate high-pass filter. Simple but effective.

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

- Simple and effective 6hp stereo VCF
- 8 filter modes available with meta CV scanning, famous zero-delay feedback Grand Terminal filters
- Additional hi-pass filter in series quickly cuts the boomy low end
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 4 in stock $166.85
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quote 734886
Cat: 740273 Rel: 02 Oct 19
 
32 step sequencer with fractal-like pattern generation
Notes: If we're honest we don't really understand fractals. Something to do with maths, apparently. But that doesn't really matter because we do understand this sequencer module, which is ideal for randomly twisting and morphing sequences.

Supplier notes:
Bloom is a fractal sequencer capable of generating infinitely evolving melodies with a host of musical features.

At its core is a powerful 32 step sequencer with two independent channels and an intuitive interface. What makes the Bloom come alive are its fractal algorithms which can transform existing sequences into powerful melodies, or even generate new patterns altogether. The base sequence is known as the Trunk and can be programmed by hand, or automatically generated with the Mutate function. Once a Trunk sequence is in place, fractal transformations are only a knob turn away by using the Branch and path controls. Each new Branch adds a complete variation to the base sequence and Path determines its passage through the set of recursively generated sub-sequences, offering a unique take on the melody with each turn of the knob.

Bring your sequencing to life with Bloom.
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MRP:$393.97 SAVE 19%
 2 in stock $317.54
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quote 740273
Cat: 689812 Rel: 22 Nov 19
 
Addiditive synthesis engine
Notes: Additive synthesis oscillator based on the concept of building up harmonics from sine waves. A complex idea nicely executed for ease of use.

Suppliers notes:
Odessa implements the principle of additive synthesis controlled by a set of carefully tailored macro parameters to harness thousands of sinusoidal partials that altogether form the resulting sound.

The interface is kept simple and accessible, so you can easily build rich and full, great sounding timbres of very complex spectra, that can be either harmonic or inharmonic. Even though inharmonic spectra yield non-periodic waveforms, all partials are frequency related to the common fundamental controlled by a V/oct input. The series of harmonics can be squeezed or spread apart, tilt, and pruned by a comb-like frequency response, resulting in a variety of unearthy sounds. Animating the comb response yields radical effects similar to flanging and phasing. Additional, often sought after features are implemented: through-zero linear frequency modulation, and unison detune: up to 5 copies of the sound can be spread apart for a fat and dense cluster of voices.

There are nine parameters, each controlled by a dedicated knob, so the workflow is as smooth and immediate as possible. Furthermore, every parameter has a dedicated CV input, allowing live animation for organic audio effects. Odessa sports two main outputs for banks of harmonic partials that can be further scaled in frequency, as well as an additional output that can either spit out a square wave or a single sinusoid of the fundamental frequency. Interesting spatial effects, crazy modulation feedbacks as well as synchronisation is possible that way.

The hardware is based on a powerful FPGA chip offering massive parallel computing. The synthesized signal is devoid of aliasing through the entire audio range thanks to intrinsically bandlimited algorithm. A simplified spectral analyser helps you to keep a visual track of what is actually happening to the harmonics.

For even more control over Odessa, you can use the Leibniz subsystem (or just the Lipsk) that can be connected to a header at the back of the module.
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 4 in stock $431.65
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quote 689812
Intellijel Tete Module (synth module)
Cat: 747529 Rel: 30 Dec 19
 
Expander module for the Tetrapad controller
Notes: Expander module for the Tetrapad, Intellijel's multi-dimensional performance touch controller. Adds huge functionality, allowing you to sequence parameters and create complex modulation.

Supllier notes:
Tete is the long awaited and highly anticipated expander for the Tetrapad.

Some of the key features:

Three primary modes: VOLTAGES, NOTES and COMBO.

VOLTAGES mode:

Up to 16 voltage storage locations (grid) with 8 voltages stored at each location.

You have the choice to record and playback your recall of these locations in a looper style (just play freely and spend arbitrary amount of time at any location) or as a clocked sequence (SH-101 style). Additionally you can traverse the matrix using the X and Y CV inputs to get Cartesian style sequencing.

There is also variable slew that allows you to morph/glide between the values.

NOTES mode:

You can create sequences or loops in chord, scales or keyboard mode. The isomorphic keyboard grid can vary from 4 notes to 12 notes max. There are real-time performance looping, transposition and inversion capabilities via the CV inputs and dedicated loop button. In sequencer mode each step can be a tie, rest, or gate with size 25/50/75%. Basically we have created a way to very quickly and intuitively make chord sequences that are very musical and easy to manipulate. It is difficult to summarize in words but we will be sure to create some videos to demonstrate how easy and fun this is to play with. It definitely represents something unique in the landscape of Eurorack sequencers.

COMBO mode:

In this mode you can loop record your performance on any combination of the following functions:

fader, bipolar fader, drum hit, switch or LFO. Kind of like Elektron style parameter locking but all of the motions is recorded continuously instead of just in slices. Instantly turn a simple patch into a highly animated and complex beast.

With all of the above mentioned loop recording modes you can very easily overdub since the Tetrapad detects pressure/pressing. In combo mode you can erase individual channels.

All modes allow for internal or external clocking and configurable syncing.

All of the modes have special XYZ CV modulation assignments and make use of the dedicated CV outputs.

For example, in Looper mode one of the CV outputs generates a continuous ramp that represents the position in the loop. This can be used with devices like the Planar 2 in Interpolation mode to sync the recorded patterns together no matter what tempo.
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 7 in stock $290.62
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Cat: 734884 Rel: 15 Oct 19
 
6HP VCO with auto-tuning & octave shift
Notes: Simplified version of the Furthrrrr Generator dual VCO, inspired by Don Buchla's designs. Through-zero linear FM, wavefolding, sub-oscillator and auto tuning. Proper west coast synthesis at its best.

Supplier's notes:
The Endorphin.es Godspeed is sort of the single oscillator version of the famous Furthrrr Generator. From its big brother it takes over the digital Thru-Zero core and the legendary wavefolder. But it also has new features like a sub-oscillator output and an immensely practical autotune function.

Especially for people starting with a modular system this oscillator is highly recommended. On 6HP it delivers all the features (and more) needed for diving into the depths of West-Coast-Synthesis!
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 3 in stock $224.98
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quote 734884
Cat: 732315 Rel: 11 Sep 19
 
MIDI-CV converter module for Eurorack - 14HP
Notes: Eight-voice modular synthesis? Yes please. Updated version of the Poly splits your MIDI signal to CV and gate for fully polyphonic action. Chain multiple units for even more multi-voice madness.

Supplier notes:
The Polyend Poly 2 module is a polyphonic MIDI to CV converter Eurorack module, and it will change how you interact with your sequencers, controllers, DAW, and more. This powerful module features MIDI I/O plus USB A and USB B inputs, with a total of four Gate outputs, four Pitch outputs, and 12 outs for CV (CC 0-127) signals. And using the Smart Thru connection, you can daisy-chain multiple Poly 2 modules together for even more voices. And Sweetwater was excited to report that Poly 2 is even compatible with the MPE (Multidimensional Polyphonic Expression) standard used in innovative controllers such as the Roger Linn Design LinnStrument and the ROLI Seaboard series. Once you've explored the polyphonic expression the Polyend Poly 2 module is capable of, you'll never want to be without it.

No matter what kind of MIDI controller you use - keyboard, ribbon controller, pressure pad, or whatever - the Poly 2 module offers built-in scale filtering rewards you with highly musical output. Select a scale, and only the notes within that scale will be passed along to your patch destinations. This is different from scale quantization, which forces ANY input to trigger the note its closest to in the scale, and can make it much more enjoyable to use alternative MIDI controllers with the Poly 2 module.
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 9 in stock $307.85
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quote 732315
Cat: 747513 Rel: 07 Nov 19
 
Two high quality & precise linear VCA's - 8HP
Notes: The Voltage Controlled Amplifier or "VCA" is one of the most essential and useful building blocks in a synthesis patch. The DUAL VCA 1U packs two high quality, DC coupled, linear VCAs into a very compact 1U package.

The two VCAs can be used completely independently or in tandem via the handy signal normalling. The DC coupling means that the VCA can be used for the amplitude control of both control voltages (CV) and audio signals.

Some application/use examples:

- Dual, independent VCA for dynamic level control of two different audio or cv sources
- Stereo VCA (use the CV normalling where CV A normals to CV B) for processing stereo sources or CV pairs.
- CV/Audio summing (when Out A is not patched, it normals to sum with OUT B, CV A and B control the independent levels)
- Voltage/signal doubling (use input A only and the doubled voltage will appear at OUT B when a CV of +5V applied to CV A)
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 5 in stock $94.72
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quote 747513
Cat: 756224 Rel: 22 Nov 19
 
Expander for Odessa or other XAOC Devices polyphonic oscillators
Notes: Hel is a universal expander for polyphonic oscillator modules from Xaoc Devices, such as the Odessa. The module makes it possible to freely control up to five voices of polyphony via individual volt/octave inputs.
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 3 in stock $73.20
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Cat: 751611 Rel: 08 Oct 19
 
Analogue-inspired parameterized drum synthesiser
Notes: Basimilus Iteritas Alter is a parameterized digital drum synthesizer with its roots in the analog world. At its heart, it is a simple six-oscillator additive synthesizer with adjustable waveform, harmonic spread and decay. Adjustable attack including a noise oscillator is also included. dLese are summed and fed into an in..nifolder for crunch and variety.

Basimilus Iteritas Alter is an improved version of Basimilus Iteritas. It is 2HP smaller, includes CV of switches, adds an third mode, and pitch range and knobs know offset rather than attenuate.

Size: 10HP Eurorack
Depth: 1.5 Inches
Power: 2x8 Eurorack
Draw +12V: 150 / 80
Draw -12: 5 / 5
Draw +5v: 0 / 90
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MRP:$430.14 SAVE 21%
 2 in stock $338.00
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Cat: 739915 Rel: 24 Oct 19
 
Full voltage-controlled instrument interface
Notes: Interesting MIDI option for Eurorack. Eight faders and buttons, mappable to MIDI note, CC and lots more parameters, then controllable using CV and gate signals. Versatile.

Supplier's notes:
A fully editable MIDI controller with eight faders and push buttons. Each of them with a CV or Gate input associated to automate their functioning via external signals or to be configured independently for further control.

Each control on VCMC can be edited on its OLED screen and will be output either via DIN-5 or USB as a class compliant MIDI device.

- Current needs: +12V: 64mA, -12V: 12mA
- Width: 20 HP
- Depth: 30 mm
- Aluminium, heat-treated front panel
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MRP:$412.05 SAVE 22%
 6 in stock $321.85
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Cat: 747621 Rel: 20 Sep 19
 
8HP drum/percussion synth module
Notes: Originally inspired by audience applause, hip-hop samples, and classic drum machines, Fracture is a multi-particle percussion synthesizer that applies concepts from classic analogue clap circuits to granular synthesis methods.

It all starts from proprietary micro-samples we recorded specifically for this purpose and ends with an engine built to suit these samples.
Unlike our other percussion module, the Chimera which uses impulse rich samples as it's tonal centre, Fracture uses single impulse samples like Claps, Snaps, Ping Pong Balls, Opening a beer can, and many more. It then plays a group of similar samples back in a psuedo random order for unique hits. Density, Decay, and Tail affect tone and how "tight" your virtual clappers are to playing together.

Our goal was to design a clap percussion module covering the range from classic drum machine claps all the way to full audience applause. We ended up with a module that covers a huge range of timbres beyond claps. We hope this engine provides you with the tools to intuitively create wild percussion sounds that bring your system to life in a new way.
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MRP:$322.93 SAVE 26%
 4 in stock $240.04
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Cat: 747522 Rel: 15 Nov 19
 
Force sensing module with gate & CV output - 10HP
Notes: The FSR 1U is built around a custom fabricated FSR with an analog processing circuit. It allows you to generate a variable CV when you press on it (pressing harder generates a larger voltage) along with a corresponding gate signal.

Guaranteed to add some fun, dynamic control over almost any kind of patch!
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 9 in stock $71.04
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Cat: 749081 Rel: 25 Oct 19
 
Eurorack instrument interface with Neutrik combo connector - 8HP
Notes: Instrument Interface is a Eurorack pre-amp capable of bringing any type of audio signal to modular levels, thanks to its amplification circuit.

The module can drive regular and condenser microphones (+48V Phantom Powered), as well as Instrument and Line signals with a very low distortion ratio.

Going further from the regular re-amp operation, Instrument Interface offers some additional extra functions like a Trig/Gate extractor and Envelope Follower circuits, allowing you to use the character of your audio signal in more creative ways.
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MRP:$282.88 SAVE 22%
 4 in stock $220.66
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quote 749081
Cat: 719655 Rel: 03 Sep 19
 
High quality stereo digital FX for AE modular
Notes: Stereo effects processing for Tangible's affordable AE modular system. Offers a total of 15 digital effect programs with CV control over three parameters each. Can run in Eurorack via an optional adaptor frame.

Supplier notes:
The MULTIFX module offers 15 different stereo audio FX programs, a wide variety from common FX like reverb and delay to unique effects like Ring Crusher or Glitch delay. Also a nice shimmer effect is onboard.

Each program has 3 parameters that can be adjusted and additionally be CV-controlled.

With a switch the sample rate can be reduced to half the normal rate, resulting in doubling the effect times (with reverb, delay...) and introducing a nice portion of aliasing.

It is based on the FV-1 DSP chip that is well-known from other FX-modules in the Eurorack world; the MULTIFX module offers the 7 factory programs of the chip plus 8 new and unique ones created by Tangible Waves.
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 5 in stock $107.64
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Cat: 747516 Rel: 18 Nov 19
 
Compact dual attenuator, inverter, attenuverter, multiplier, mixer & DC voltage source
Notes: Duatt is a dual-channel active/buffered attenuverter and summing mixer. Each channel has a knob, which can function as a unipolar attenuator or a bipolar attenuverter, depending on the setting of its corresponding two-position polarity switch. It's a versatile and super handy utility module that will find its way into almost any patch you make!

Each input is normalled to a built-in +5V DC voltage source. With nothing plugged into the jacks, each knob controls a voltage range of 0 to +5 V or -5 to +5 V depending on the position of the channel polarity switch.

Channel A's output is normalled into the output of channel B for mixing duties, and channel A has a 2x voltage multiplier switch, allowing you to double the voltage sent into Channel A.
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 1 in stock $68.89
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Cat: 747528 Rel: 18 Nov 19
 
Quadrax EOR/EOF expander featuring 8 additional gate/trigger outputs
Notes: The Qx expander adds an EOR (End Of Rise) and an EOF (End Of Fall) trigger/gate output to each of Quadrax's four channels, enabling Quadrax's envelopes, cycles, bursts and LFOs to trigger external modules.

Requires the Quadrax to function.
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 2 in stock $68.89
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Cat: 745785 Rel: 10 Sep 19
 
Dual quantizer for CV's, converting a continuous positive input voltage into a stepped output voltage - 8HP
Notes: Module A-156 is a Dual Control Voltage Quantizer. A quantizer converts a continuous control voltage in the range 0...+10V into a stepped output voltage in the same voltage range (i.e. only certain voltages occur). Normally 1/12 V steps are used to obtain semitone steps. Quantizer 2 of the A-156 allows has more sophisticated quantizing modes like major scale (i.e. only voltages corresponding to the major scale), minor scale, major chord, minor chord, fundamental + fifth and addition of seventh or sixth when chords are selected. Only those voltages appear at the CV output which comply with the selection rule (e.g. minor chord with seventh). The mode setting of quantizer 2 is done with 3 switches (1-0-1 type with middle position). From the factory quantizer 1 is working in the semitone mode. But there is a jumper on the pc board that can be changed so that even quantizer 1 uses the same scale as quantizer 2.

For each quantizer the following in/outputs are available:

- Control voltage input (CV In): The input for the continuous voltage to be quantized
- Control voltage output (CV Out): The output of the quantized voltage
- Trigger input (Trig.In): If this jack is left open the quantizer is working permanently. If a rectangle voltage is applied quantisation happens only at the rising edge of the signal (e.g. from an LFO or MIDI-to-Sync interface). Thus the quantizing can be synchronized with other events
- Trigger output (Trig.Out): Whenever a quantisation happens (i.e. a new voltage is generated at the CV Out) a positive pulse occurs at this output. It may be used to trigger an envelope generator (ADSR) or for triggering other modules (sequential switch A-151, trigger divider/sequencer A-160/161, trigger delay A-162, ...). If none of these functions are used the jack is left open

On top of that the A-156 is provided with a common transpose CV input having an additive effect on both quantizers. This input is quantized in semitone steps. A typical application is the transposition of a sequence generated by the A-155 by a second control voltage (e.g. coming from the MIDI-CV interface A-190).

Typical applications:

- Quantizing the CV sequence generated by an A-155 (semitone, only major scale, only minor scale and so on)
- Quantizing the voltage coming from the Trautonium Manual / Ribbon Controller A-198, Theremin A-178 or Light-to-CV module A-179 to get accurate semitones or major/minor scale tones
- Arpeggio-like effects with LFO, random, noise, envelope generators as CV sources (for negative or symmetrical voltages an offset must be added, e.g. with the offset/attenuator module A-129-3, to obtain positive voltages for the A-156 input)
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 4 in stock $107.64
Cat: 742232 Rel: 16 Dec 19
 
4HP voltage expander module for the METRON trigger & gate sequencer
Notes: Expander for WMD's Metron, a 16-channel trigger and gate sequencer module. Adds four tracks of voltage sequencing per module, turning the Metron into an even more powerful sequencer

Supplier notes:
Voltera is a voltage expander module for the METRON trigger and gate sequencer and adds 4 bipolar voltage tracks in 4hp. Up to 16 Volteras can be added to a single METRON giving you up to 64 CV Sequencing lanes for your Eurorack modular system!

With independent voltage ranges and quantize settings per track, Voltera allows for real time control over 4 different parameters at once, allowing you to dial that track to the parameter you are sequencing.

Sequence melodies, modulate parameters, and more with ease by adding Voltera to your METRON set up.
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MRP:$238.96 SAVE 26%
 5 in stock $176.54
Polyend Preset Module (synth module)
Cat: 732317 Rel: 11 Sep 19
 
Macro controller & sequencer - 22HP
Notes: Presets on a modular? Sacrilege! Or the best of both worlds, depending how you look at it. We'll probably go with the latter, because this is a super versatile little programmer/sequencer/preset storage module.

Supplier notes:
The 22 HP interface is simple, clean and streamlined. At first glance, Polyend Preset module might look like simple a digital preset manager for Eurorack systems, but it's much more than this. Its vast implications make it a very smart companion for your modular system. But let's start from the basics. With the use of 9 LED coloured clickable encoders, Preset allows you to store up to 9 different CV output values in 32 banks of 32 presets. Yep, 1024 in total!

It's capable:

Program the notes sequences using one of the 32 build-in musical scales. Record the automation using the encoders or external source.

Four modes, totally different possibilities:

Depending on what you want to achieve, there are four modes you can choose from: First, Next, Channel and Note.

Both First and Next modes are perfect for building your unique polyphonic synthesizer.

The Channel mode lets you choose which MIDI Channel is responsible for which voice. This mode is what the majority of users utilise to connect DAWs or external sequencers.

The Note mode translates data received from MIDI Notes C through G and directs them into the corresponding voices (no matter the octave). This scenario works excellent for triggering drums from drum pads or drum triggers.
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 More than 10 in stock $300.32
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Cat: 719650 Rel: 03 Sep 19
 
Analogue 16-step CV sequencer
Notes: The SEQ16 is a 16-step sequencer for controlling oscillator pitch and triggering envelopes.

Compared to "classic" analogue sequencers it works a bit different: Instead of setting the CV for each step independently (which means in fact "tuning" each step which can be a bit tedious), the SEQ16 has 5 knobs for pre-setting different CV's (= notes); each of the 16 step knobs selects one of these CVs, plus 0V (=base note) plus Pause (no trigger output). So some CVs have to be fine-tuned once; with the step knobs you can focus entirely on the sequence itself and you can even modify it on the fly, still remaining in tune.

An additional feature is "accent"; this can be set for each step by turning the knob fully clockwise. If a step is set to "accent", a separate trigger output is set and also a gate repeat for the regular gate output can be selected (from one to eight repeats).
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 4 in stock $83.96
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Cat: 719686 Rel: 02 Sep 19
 
Classic wavefolder for the AE system
Notes: This module is based on a design used also by Ken Stone for his CGS system; the original circuit dates back to a publication from 1973.

Basically, the WAVEFOLDER clips and folds the incoming waveform; usually, waveforms with little overtones (like triangle or sinewaves) are used as input. In general, by the clipping and folding, the signal enriches the input signal with more overtones.
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 7 in stock $33.36
Cat: 763098 Rel: 04 Feb 20
 
controlled noisillator module
Notes: Really clever noise-based oscillator from AJH. Drones, sweeps and bleeps aplenty, ranging from tamed to out-of-control filth. Also doubles up as a more conventional ring mod and distortion module.

Supplier's notes:
This 14HP wide module is a voltage controlled noise based oscillator, or noisillator for short. It generates 1/f noise and this is then sent through a feedback loop which allows the noise to be "tuned" to varying degrees depending on the settings of the frequency and resonance controls, or incoming frequency or resonance CV's. The tuned circuit can be FM modulated too, for some thunderous sweeping sounds. We have bright and dark outputs, which are pre and post filter respectively. The Bright output will always have a degree of noise present in the signal, whereas the Dark output can be tuned noise only when 4 pole resonance is selected. We also have an external Sync input, which will reset the resonant waveform, and we also have an Audio input, so that an external signal can be mixed into the resonant loop. Combinations of external waveforms to these two inputs can create some massive drone sounds, or sweeping sync sounds.

There is also an XOR ring modulator, which can be used as a module in its own right too. Lastly, we have an XOR amplifier, which is another independant circuit that can be used to add noise and distortion to any audio signal.
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 2 in stock $252.95
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quote 763098
Cat: 745620 Rel: 17 Sep 19
 
Basic 8-bit drum sound generator
Notes: DRUMKIT 010 consists of 11 8-bit drum sound samples; 6 of them can be triggered in parallel in any combination by the trigger inputs. With a BANK selector knob, different combinations of the 11 samples can be selected. The PITCH knob affects the pitch of all instruments together, and with the REVERSE button the sounds are played backwards - quite a nice effect to be added here and there.

Don't expect high quality from this module - it's by design a nasty, lo-fi drum sound source, but definitely with its own character. Works great together with the analogue KICK module.
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 7 in stock $55.97
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Cat: 742228 Rel: 05 Sep 19
 
Low pass filter, VCA & distortion with brass touchpoints - 14HP
Notes: More aggro filth from the troubled minds at Schlappi Engineering. This time it's a distortion/filter module with touch-sensitive metal conductors for hands-on control. Screaming saturation and self-resonance ideal for angry techno. Nasty.

Supplier notes:
The 100 Grit is a touch-controlled distortion unit inspired by the output section of a vintage synthesizer. Sonically it can range from subtle tone shaping to complete sonic obliteration depending on the positions of the knobs and output chosen
.
The 100 Grit consists of a low pass filter, VCA, and distortion section with 8 touch points, voltage control overdrive, resonance, and frequency, along with a plethora of feedback paths allowing it to operate as a hands-on performance instrument with or without any input.

The touchpoints enable touch-controlled resistive patching between the cv points (gain, frequency, and resonance), sensitive points in the distortion circuit, and different distortion outputs for a mix of touch-controlled audio rate modulation and crackle box-like noise freakouts.

The low pass filter is a 24dB self-oscillating transistor ladder type with a jumper selectable resonance compensation scheme allowing more bass and volume at higher resonance settings.

The VCA is an OTA based circuit, which when pushed past 75% will impart a soft distortion characteristic, turning a triangle wave into a sine before being finally driven into a square wave close to max. If the levels are kept lower it is a reasonably clean vintage-style output section.

The distortion circuit is driven by the VCA, allowing for a voltage controlled gain amount and goes from heavy to extreme, especially when the x100 gain switch is engaged or the various self-modulation/feedback paths are utilized. The circuit is loosely based on a headphone amplifier circuit cranked into instability and self-oscillation.

Each Audio and CV input is normalized to a different feedback path, allowing for wild, self-oscillating distortions and extensive tone control with no external CV applied, or full control from external sources.
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 1 in stock $266.94
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Cat: 745775 Rel: 10 Sep 19
 
Two sample & hold units in one module for generating stepped random voltages or slicing signals
Notes: Module A-148 (Dual S&H) has two identical sample & hold modules, designed to produce 'staircase' voltages. The signal present at the sample input is sampled at a rate set by the signal at the trigger input, and held at that voltage at the S&H output.

The exact shape of the staircase depends on the sort of waveform at the sample input: NOISE or RANDOM signals produce random patterns; an LFO produces rising or falling staircase patterns.

Two LEDs for each S&H indicate the voltage (positive or negative) of the sampled signal.
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 1 in stock $66.73
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Cat: 745776 Rel: 09 Sep 19
 
12HP random voltage generator for Eurorack, with 4 CV outputs
Notes: Module A-149-1 is the first module of the A-149-x range. In this group we present by popular request several functions of Don Buchla's "Source of Uncertainty 265/266" (SOU) modules that cannot be realized with existing A-100 modules. Many functions of Buchla's 265 and 266 SOU can be realized with existing A-100 modules. For details please refer to A-100 patch examples.

Module A-149-1 has available four different analogue random control voltages that are generated in different ways.

The "Quantized Random Voltages" section has available 2 CV outputs: "N+1 states" and "2N states". N is an integer number in the range 1...6 that can be adjusted with the manual control (Man N) and an external control voltage CVN with attenuator. Whenever the rising edge of the input clock signal (Clk In) appears a new random voltage is generated at the N+1 resp. 2N output. The N+1 output is capable to generate N+1 different voltage levels (or states), the 2N output up to 2N different states. If for example N is set to 4 the N+1 output generates up to 5, the 2N output 16 different states. The voltage steps of the 2N output are adjusted to 1/12 V in the factory. Consequently, exact semitones can be obtained in combination with a VCO. The voltage steps of the n+1 output are adjusted to 1.0 V in the factory corresponding to octave intervals in combination with a VCO. For each output a trimming potentiometer is available on the pc board that enables the user to select other voltage steps for the output in question.

Even the "Stored Random Voltages" section has 2 stepped CV outputs available: one with even voltage distribution of the max. 256 output states and second one with adjustable voltage distribution probability. The distribution probability is adjusted by a manual control (Man D) and an external control voltage CVD with attenuator. With the control set fully counter-clockwise most of the random voltages will be low magnitude but even medium and high magnitude voltages may appear but with smaller probability. As the control is turned to the right (or a positive control voltage appears at the CVD input) the distribution moves through medium to high magnitude voltage probability. The symbol at the lower jack socket shows this coherence graphically. The voltage range is 0...+5V for both outputs of the "Stored Random Voltages" section. For each output a trimming potentiometer is available on the pc board that enables the user to select another voltage range for the output in question.

The A-149-1 can be extended by 8 random digital voltages with the A-149-2 Digital Random Voltages module.
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 2 in stock $100.09
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Cat: 751724 Rel: 23 Oct 19
 
Eurorack passive multi-connector - 6HP
Notes: Module A-182-1 is a simple passive multi-connector similar to the multiples modules A-180-1/A-180-2. In contrast to modules A-180-1/2 each socket is equipped with a 3-position switch that allows to connect the corresponding socket to the internal bus #1 (left position), bus #2 (right position) or to turn the socket off (centre position).

Examples:

- All switches in left position or all switches in right position: 8-fold multiple

- Four switches in left position and four switches in right position: two 4-fold multiple

- X switches in left position, Y switches in right position and Z switches in centre position: two separate multiples with some sockets turned off
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 1 in stock $51.66
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Cat: 749524 Rel: 16 Oct 19
 
Compact modular system with full analogue design - Eurorack version
Notes: Pico System III brings modular synthesis back to the basics - the system has multi functional (instead of single-function, like Pico Drums or Pico Trigger in the Pico System II) analogue modules and is intended to encourage creativity in modular patching.

The system has 31 inputs and 20 outputs (master output is duplicated) + 7 switches; if you have enough patch cables at your disposal, you can patch the system in 121000931215044250740178662400 or 1.21x1029 variations (we ignored the possibility to adjust potentiometers here). Even though only 0,0001% of all patches will sound more-less enjoyable, you and all your future generations can spend a lifetime only patching the Pico System III.

Voice-cards with preset patches set it apart from other eurorack systems - they allow user to change patches instantly and radically, which makes the system well suited for experimental live performances. The system comes with 5 great sounding "factory preset" voicecards, and 5 DIY voicecards that are empty and users can develop their own patches. More voicecards will be available from the Erica Synths shop.

Eurorack module includes: 1 Hosa stackable cable, ribbon power cable, 5 factory preset & 5 DIY voice-cards, user manual and patch note sheets.
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 3 in stock $413.33
MFB
Cat: 695604 Rel: 16 Sep 19
 
MFB-522/Tanzbar style analogue bass drum module
Notes: The Bass-522 module is based on the 522 circuit and offers a punchy attack, long decay and wider pitch range. Adjustable noise and pitch envelope have also been added.

The sound can be triggered by Gate, M-Bus and signals like piezo pickups, dynamic mics and drum pads. The Sense parameter decides the sensibility and dynamic of attack, amplitude. decay and pitch.

The following parameters are available and can be controlled by CV:

TONE dampens the attack transient.
DECAY sets the release time of the amplitude.
TUNE defines the basic pitch from around 35 to 70 Hz.
PITCH controls the amount of pitch envelope.
NOISE mixes the noise floor (no CV control).

The module offers the new developed M-Bus connector which means you can you control everything via MIDI/CV interface or the new MFB SEQ-01 Pro Drum Sequencer without additional patching. The following addresses are supported:

Trigger with Velocity - MIDI Note #35 or #36 (switchable) and controller values for Tone, Decay, Tube, Pitch and Noise Decay.

The module has a width of 8HP (40mm).
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 3 in stock $85.03
Cat: 732306 Rel: 09 Sep 19
 
Stereo thru-zero state-variable VCF - 16HP
Notes: The only module named after a Swedish botanist? Possibly. Relentless synth innovator Dave Rossum pushes the boundaries again with a state-variable stereo filter offering through-zero frequency modulation. Sounds complicated. Sounds good.

Supplier notes:
Following in the tradition of Evolution and Morpheus, LINNAEUS represents yet another Dave Rossum innovation in filter technology.

LINNAEUS is a stereo state-variable filter that provides the unique ability to linearly modulate its resonant frequency through zero into negative frequency, while maintaining stability. With extensive voltage control of nearly every parameter, Linnaeus lets you manipulate the filter's natural response curve in new ways, to create both subtle and dramatic timbral effects. And with a "one-knob-per-parameter" interface, LINNAEUS inspires sonic creativity that invites (and rewards) real-time interaction.

LINNAEUS's cutoff/resonant frequency is exponentially voltage controllable from sub-audio to ultrasonic frequencies, while its resonant gain (Q) is exponentially voltage controllable from 0dB to greater than 60dB.

LINNAEUS's channel output response characteristics are independently and continuously variable from Lowpass, through Bandpass, Highpass and Notch, to Low and High Shelving characteristics. Voltage control of the response characteristics are independently selectable for each of the two channels.

The linear thru-zero modulation is provided by an integrated modulation oscillator and/or an External Linear FM modulation input.

The voltage-controllable modulation oscillator can track the filter's exponential frequency or operate independently. The modulation oscillator's output waveform is continuously variable from Off through Sine, Triangle, and Sawtooth, to Square. The modulation oscillator output is summed with the external linear FM input and applied to the modulation index VCA, which controls the linear thru-zero modulation index from zero to 8X. The modulation index is, of course, also voltage controllable.
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 2 in stock $407.96
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Cat: 757112 Rel: 06 Jan 20
 
Analogue 'OTA style' cascaded 4-pole lowpass VCF with self-oscillation capability
Notes: Belgian analogue innovators Joranalogue serve up an ultra-versatile filter module. Multimode flexibility meets self-oscillation for added sonic versatility. A hell of a lot of filter for the money.

Supplier's notes:
Representing the cutting edge in modular analogue voltage controlled filter (VCF) design, Filter 8 offers more possibilities and higher fidelity in 12 HP than ever before.

Starting from the classic OTA-style 4-pole cascaded lowpass (LP) topology, Filter 8 features separate LP outputs, each with their own character. Additional filter responses are achieved by pole mixing: 1-pole highpass, a special band boost and notch response, phase shifter and 4-pole bandpass. All outputs are available simultaneously.

Key to Filter 8's performance is the innovative resonant feedback circuit. By increasing the resonance, all outputs will resonate at the filter frequency, without any low frequency response loss. At higher resonance levels, self-oscillation is achieved, turning the module into an excellent 8-phase sine wave voltage controlled oscillator (VCO) with temperature and switchable gain compensation, low distortion, constant amplitude and accurate frequency tracking over at least 5 octaves. At sub-audio frequencies, Filter 8 can function as an 8-output voltage controlled slew modifier or 8-phase low frequency oscillator (LFO).

Simultaneous exponential and linear frequency modulation is possible, for classic FM tones or chaotic modulation. A hold feature is also provided, 'freezing' the output voltages manually or under gate control. This is useful for halting modulations, or as a sync-like effect at audio frequencies. The dedicated 'ping' input allows you to easily create crisp percussive sounds with different timbres.

While rooted in the legacy of classic synthesisers, Filter 8 provides a new approach to musical signal generators and modifiers: instead of simply a VCF, VCO, slew modifier or VCLFO, a single analogue module can now be any of those, and anything in between.
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 2 in stock $257.27
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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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Cat: 755416 Rel: 14 Nov 19
 
Eurorack phase locked loop module, featuring voltage-controlled oscillator, phase comparator & low pass filter
Notes: Module A-196 contains a so-called phase locked loop (PLL). The basic PLL system is shown in the sketch at the bottom of this page. A PLL consists of three parts: voltage-controlled oscillator (VCO), phase comparator (PC), and low-pass filter (LPF). All parts are normally connected to form a closed-loop frequency-feedback system.

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

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

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

Another very important application of a PLL is frequency multiplication in combination with an external frequency divider. For this the output of the PLL-VCO is processed through an external frequency divider (e.g. A-163, A-160, A-161, A-115) before it is fed to In1 of the phase comparator. In this case the frequency of the PLL-VCO will be a multiple of the master frequency. E.g. if the A-163 is used and adjusted to dividing factor 5 the frequency of the PLL-VCO will be 5 times the frequency of the master VCO. Consequently, frequency division (A-163) leads to frequency multiplication with the PLL circuit. In combination with the PLL low pass frequency several effects can be realized (frequency multiplication with portamento or wobbling). The frequency multiplication can even be used to drive a graphic VCO. If your graphic VCO e.g. has 8 steps (e.g. A-155) and you use a frequency divider with factor 8 in the PLL feedback the output of the graphic VCO has the same frequency as the master VCO. Another application is the generation of pseudo-harmonics (not real harmonics as only rectangle waves are available) or clock generation for switched-capacitor filters.
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Cat: 752437 Rel: 25 Oct 19
 
25W Eurorack power supply
Notes: The Row Power 25 is a clean, regulated, and protected power supply module for Eurorack systems. It requires a barrel-style power brick (15V - 20V DC) and supplies power to modules via flying bus cables, direct connection, and/or bus boards.

The Row Power 25 provides 25W of power for any Eurorack modules (typically 4-10 modules*):

+12V @ 1.4A maximum, 1.0A recommended
-12V @ 0.8A maximum, 0.5A recommended
+5V @ 1.0A maximum, 0.8A recommended

*number of modules can vary depending on each module's power consumption.

Simply plug a universal power supply (laptop style) into either of the barrel plugs on the 4HP panel. Connect your modules via flying-bus cables or the Bus Stick.

Multiple Row Power modules can be powered from a single power brick by daisy-chaining with an inexpensive barrel cable. The Row Power 25 can also be daisy-chained to Pods. Each Row Power and Pod will be independently regulated and protected for ultra-low cross-talk between rows.
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 1 in stock $95.81
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Cat: 737960 Rel: 21 Aug 19
 
All-analogue dual stereo crossfader - 6HP
Notes: Stereo patching is becoming more common each day in the Eurorack Modular Synth System and we here at the shop are performing out a ton. Over the past couple years we consistently felt the need for a simple crossfader module that would allow users to switch between two stereo sources, add a stereo effect path, or easily mix a mono source with a stereo one. AXYS was born from this need.

Each crossfader features stereo inputs with normalling for mono to stereo uses as well as independent CV control. Control both crossfaders with one CV easily and decide how the Y will react to X's CV.

Easily transition between two performers similar to a DJ transitioning between decks with one channel and add some master buss effects with the other. Use one channel for adding stereo effects and the other to dial up some nice parallel compression. Perfect for live performance and momentary effect blasts. A simple easy to use module with tons of uses.

All analogue signal path keeps your tone intact and sounding the way you intended it to.
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 3 in stock $223.89
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Cat: 745618 Rel: 17 Sep 19
 
Topographic drum sequencer
Notes: TOPOGRAF is a drum sequencer with three tracks, that works with a "topographic" principle; it contains a number of drum patterns arranged in a "virtual map"; and with two knobs MAP X and MAP Y you can set a position in this map. With one knob per channel the density is defined; and a CHAOS knob brings some randomness into the whole process. All in all, a few knobs for a lot of drum patterns you probably wouldn't make this way by yourself - a nice source of inspiration and also great for playing live.

TOPOGRAF is the AE modular version of the Grids module by Mutable Instruments. It is 100% identical to Grids.
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 6 in stock $74.26
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Cat: 745619 Rel: 17 Sep 19
 
Pure analogue kick drum module
Notes: KICK is a pure analogue Kick drum of raw bass power.

It has three knobs: PITCH for the overall pitch of the sound; with DECAY the length of the sound can be set and with DRIVE a nice distortion can be added to the sound.

With the pitch decay switch the pitch follows the amplitude, giving a bit different character.

And a trigger button is available to check the sound without an external trigger signal.
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 3 in stock $34.98
Cat: 719658 Rel: 02 Sep 19
 
Stereo headphone amplifier
Notes: A stereo headphone amplifier for AE modular.

It has separate left/right inputs; via a switch it can be set to mono operation (only left input is used). One common volume control for both outputs.

Two headphones can be attached via 3.5mm stereo minijack sockets.
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 6 in stock $38.75
Cat: 719670 Rel: 02 Sep 19
 
Dual attack/decay envelope
Notes: 2ENV is a dual attack - decay envelope; it can be switched between full sustain (the output remains at full level as long as the GATE input is on) and zero sustain (for percussive envelopes). Another switch (SLOW/FAST) allows selecting the time range.

For manual triggering there is a button for each envelope.

CV control: Both attack and decay time can be CV controlled; the CV "multiplies" the time by 1...approx. 8 times.
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 4 in stock $41.98
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Cat: 719687 Rel: 02 Sep 19
 
4 minijack inputs/outputs
Notes: 4I/O offers four minijack sockets that are connected to the AE sockets for connecting external audio sources, CV's and Eurorack modules. Sockets 1 and 3 are stereo sockets; if a stereo cable is inserted here the signal is available on sockets 1/2 and 3/4. With mono cables the four sockets can be used independently.

All sockets have an overvoltage protection (as AE modular is limited to 5V) and can be switched between audio and DC/CV signals.
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 6 in stock $37.41
Cat: 719700 Rel: 02 Sep 19
 
Three USB power output sockets
Notes: Each of the three USB-A sockets on the USBPOWER module can be used to charge your mobile phone, connect a USB lamp or supply power to any other USB device. Furthermore, the output socket provides +5V and ground to supply e.g. DIY circuits on a breadboard.

Please note: This is only a power source via USB sockets; no USB data communication is possible here.

Includes additional USB lamp!
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 4 in stock $21.26
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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 5 in stock $172.22
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Cat: 577809 Rel: 23 Oct 19
 
Slew processor/generator - 8HP
Notes: Module A-171-2 is a voltage controlled slew limiter with a lot of additional features beyond a simple slew limiter. It's mostly a licensed copy of Ken Stones VCS which is in turn based on the Serge VCS.

Typical applications:

- VC Slew Limiter / VC Portamento / VC Low Pass Gate:

Cycle switch = off, no trigger signal applied to Trig socket: Voltage controlled Slew limiter or portamento generator: the signal applied to the signal input is "slewed". The slew up and down times are controlled manually by means of the Up and Down controls, the effect of the CV Up and CV Down control voltages are controlled by the CV Up and CV Down controls, in exponential mode these controls also affect the slew shape (see symbols at the CCW and CW positions of the controls).

If an audio signal is applied an short slew rates are chosen the module works as a simple VCF/VCA combo.

- A/D Envelope Generator / Pulse Delay / Subharmonic Generator:

Cycle switch = off, trigger signal applied to Trig socket, no input signal: Simple Attack/Decay envelope Generator, the rise and fall times are controlled like the slew up/down times above, including the shape of the falling/rising slope of the envelope, the exp. CV input can be used to change both attack and decay simultaneously.

At the End output a pulse appears as the end of the envelope is reached (less than about 20mV), this can be used as a pulse delay.

If a series of triggers are applied to the VCS faster than the total rise and fall times, the module will divide the incoming signal by a whole number. In the audio range the output will be the sub-harmonic series.

- VCLFO / VCO:

Cycle switch = on, no trigger signal applied to Trig socket, no input signal: Voltage controlled LFO/VCO, the rise and fall times of the waveform are controlled like the slew up/down times above, including the shape of the falling/rising slope
the exp. CV input can be used like the CV input of a VCO or VCLFO, the response is exponential but not exactly 1V/oct.
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 3 in stock $107.64
Cat: 755405 Rel: 14 Nov 19
 
Voltage controlled bit modifier module for the Eurorack A-100 system
Notes: Module A-189-1 is a voltage controlled bit modifier. It offers several voltage controlled algorithmic functions like voltage controlled bit crunching, bit shifting (with/without carry over), bit exchange, rectifying, absolute value and calculating operations like addition, subtraction, multiplication or division.

The module has two control units both with manual control and CV input with attenuator:

- One for the algorithmic function according to the selected mode (e.g. number of shifted bits): BC and BC CV
- One for the sampling rate (SR and SR CV).

The signal input is equipped with an attenuator. As the module is DC coupled even control voltages can be processed.

The mode (e.g. bit crunching, bit shifting, bit exchange) is selected by a 16-position rotary switch.
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 1 in stock $94.72
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Cat: 757946 Rel: 09 Dec 19
 
Compact & straightforward MIDI interface - 4HP
Notes: The mmMidi is a simple & compact MIDI to CV interface for your Eurorack synthesiser. It translates both MIDI clock and 2 Channels of MIDI note, velocity and gate information to corresponding voltage control signals. The mmMidi is quick to set up and requires minimal configuration.
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 1 in stock $102.26
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Cat: 758859 Rel: 16 Dec 19
 
Digital waveshaper that transforms your oscillators into 8-bit sounds
Notes: Bonkers digital processing business from Xaoc. Crunchy 8-bit waveshaping, additive Walsh synthesis, freaky modulation. Wild stuff.

Supplier notes:
The new component of the Leibniz Subsystem which operates on signals and voltages through manipulating binary 8-bit numbers. Jena connects to the Drezno module in a loopback. A binary transfunctioner maps input functions (e.g. waveshapes) to some other functions through the classic table look-up mechanism. Input 8-bit values are treated as indices to an internal memory map. The value read from successive locations of the memory are passed to the output.

A simple VCO sawtooth or a triangle wave may be transformed to a plethora of waveshapes from any of the shape banks, with additional, deep through-zero phase modulation. Individual bit outputs may be used to produce interesting signals as well. There is a dedicated bank of Walsh functions - with these signals you can perform additive Walsh synthesis, not very common in Eurorack, but a quite powerful technique.

Transforming slow waveforms to sequences of binary signals is a great way to create rhythmic drum patterns. Jena comes with a special bank that has plenty of such patterns - just connect up to 8 drum voices to individual bit outputs on Jena. The rhythms can be selected or morphed on the fly through external CV input.

Obviously, being limited to 8 bits both in phase and signal value, Jena will not deliver crystal clear timbres you may know from many wavetable oscillators. Instead, it offers buzzy, jittery and gritty sounds as well as jerky and skippy rhythms, just like vintage computers, that were sometimes unreliable and unpredictable.
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 2 in stock $226.05
Cat: 746361 Rel: 16 Sep 19
 
Multiband distortion & VCA module
Notes: Distortion is fun, but it's even better when you split it up across the frequency spectrum. Seca Ruina takes an input, splits it up into three frequency bands, and lets you drive them into annihilation. SR includes a bypassable VCA on the output and CV over individual band and universal drive amount. With individual outputs for each band, you can process each band further externally. So much potential in only 6hp!
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 2 in stock $178.68
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Notes: Truly unique one from AJH, based on the sound of NASA's Apollo voice transmissions. Think outside the box and process drums and synths through this thing. Freaky. May or may not allow you to communicate with real astronauts.

Supplier's notes:
Here's a bit of fun for all fans of space missions from the previous century! This module is designed to re-create the ground to space and space to ground transissions from the Apollo era.

To be "Mission Control Houston" the Quindar PTT (push to talk) button adds a short 2,525Hz Qindar tone to the start of the transission, then at the end of the message the PTT button or switch is released and a short 2,475Hz Quindar tone is added to the audio. The bandwidth is slightly reduced in this mode.

For "Astronaut comms" we press the Capsule PTT switch, which allows us to add coloured noise, distortion, bandwidth reduction and either hum or LGM (Little green men space tone) noise to the audio signal. A deep space electret condenser mic is supplied and an be used with the MIC input.

Obviously the Lunar Module can also be used to add noise, hum, distortion, bandwidth reduction and LGM noise tone to any modular level audio too, and if the mic is left attached theremin like sounds can be added too with careful loudspeaker feedback.

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MRP:$271.26 SAVE 17%
 4 in stock $226.05
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quote 763099
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