Sound Sources
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cDVCA or class-D VCA is a new kind of VCA based on an entirely novel concept that is inspired from class-D amplification technology. This is not a transparent VCA and brings a lot of character to the sound.The first VCA that tracks 1V/octConcept: The input signal is turned into an ultrasonic PWM signal (~34kHz). The PWM is scaled to the desired amplitude and then filtered back down to the original signal.The twist: The PWM frequency can be lowered down into the audio spectrum and the frequency can be controlled via its 1V/oct input allowing for crazy waveshaping that tracks your melodies.The drive controls an innovative clipping method that does not rely on overdriving any circuitry and therefore results in distortions with a very defined character.The signal then goes into a 1 pole VCF/tone circuit that allows to keep things under some amount of control as the harmonics produced by this module can be very aggressive.With no input the module generates a simple square wave and therefore can be used a simple synth voice (VCO→VCA-VCF)DIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
sold out at the moment
cDVCA or class-D VCA is a new kind of VCA based on an entirely novel concept that is inspired from class-D amplification technology. This is not a transparent VCA and brings a lot of character to the sound.The first VCA that tracks 1V/octConcept: The input signal is turned into an ultrasonic PWM signal (~34kHz). The PWM is scaled to the desired amplitude and then filtered back down to the original signal.The twist: The PWM frequency can be lowered down into the audio spectrum and the frequency can be controlled via its 1V/oct input allowing for crazy waveshaping that tracks your melodies.The drive controls an innovative clipping method that does not rely on overdriving any circuitry and therefore results in distortions with a very defined character.The signal then goes into a 1 pole VCF/tone circuit that allows to keep things under some amount of control as the harmonics produced by this module can be very aggressive.With no input the module generates a simple square wave and therefore can be used a simple synth voice (VCO→VCA-VCF)DIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
available
The EVEN VCO is a voltage-controlled oscillator that offers stability and high precision tuning over 10 octaves. A redesigned temperature compensation circuit maintains the oscillator stable against voltage and temperature drops.Features:• 10 position octave selector• 1 cent precision tracking on the whole octave range.• Triangle, Ramp, Sine, PWM and Even outputs.• Hard Sync input• Two V/Oct inputs• Linear FM input• PWM CV inputDIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
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Kickall is a 6HP compact synth voice that features everything needed to make a big fat Kick sound. A stable VCO that tracks V/Oct, a couple of VCAs, envelopes for volume and pitch and an aggressive waveshaper.The module has been designed with a kick synthesis patch in mind.The audio path consists of a sinewave oscillator that passes across a Square Waveshaper and two VCA’s. The first VCA is for the Volume envelope. The second VCA is dedicated to general volume. Thanks to his CV input, it is possible o apply accents or affects the dynamics of notes. Feeding this input with audio generates a basic AM operation expanding the sonic range of the module.In the control path, KickAll has two envelope circuits to modulate the first VCA oscillator’s pitch. Both envelopes are fired at the same time manually or via dedicated trigger input.Through its Tune input, KickAll tracks eight octaves with high accuracy. Plug your favourite sequencer or CV source to create patterns out of the kick range, or feed it with an audio signal, for frequency modulation Fx.Features:• Accurate V/oct tracking.• CV controllable Sine to Square waveshaper.• CV controlled envelope decay for main VCA.• CV control over General volume (after VCA).• Wide range pitch envelope control.DIY-Kit-Type:THT-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. Only trough-hole parts to solder. Make sure to check the build guide before you buy. For build guide, more info, videos etc. please check the buttons below.
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Lich is a programmable multi-function module based in the Rebel Technology OWL platform that allows you to use Pure Data, Max Gen or Faust code into your module!.Lich is a Befaco Rebel collaboration that brings back Owl’s platform with this new hardware iteration. It has stereo in and out, four pot controls summed to cv inputs (like the classic Owl module) And as addition, CV and Gate outputs, patch selection with display and USB MIDI host and device connections.Features:• Stereo Audio IN and OUT at 48k 24 bits.• 4 CV controls (Pot + Attenuated CV in)• 2 CV outputs.• 2 Gate intputs + buttons.• 1 Gate Output.• Patch selection and visialization via display.• USB host and Device connectionsDIY-Kit-Type:THT-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. Only trough-hole parts to solder. Make sure to check the build guide before you buy. For build guide, more info, videos etc. please check the buttons below.
available
Noise Plethora is a multitimbral noise monster in 14HP.The module consists of three digital sound generators, followed by three analog multimode Filters. This combination makes it easy to sculpt different textures and noises and play with them intuitively and musically.The first two channels let you choose from dozens of different algorithms and can be controlled dynamically by two CV controls.Textures, rumbles, low-fi blips, spikes, oscillator clusters, harsh noises, and much more can be chosen and changed on the fly.The third channel has three independent outs: Gritty noise to create crispy and crackling soundscapes, White noise, and a filtered version with either of those two.Features:• Two digital noise channels based on different algorithm banks• Two CV controlled parameters per algorithm• Analog Multimode Filter per channel (OTA based)• White and Granular Noise dedicated outputsed outputs.DIY-Kit-Type:THT-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. Only trough-hole parts to solder. Make sure to check the build guide before you buy. For build guide, more info, videos etc. please check the buttons below.
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A harsh and funky take of an additive Oscillator. Pile up multiplications of your frequency to get a lo-fi-retro wall of squared sound! You get six doubled frequency pulses, or octaves, with common PWM and volume control for each of them. The output of each is cascaded to the next one, so you can either have one output with all frequencies or break the chain and get several sums and modulate each independently!Features:• Six bands, multiple of the base frequency• Square wave oscillator with Octaves selector PWM control and sync• Range control for Tune pot• Volume CV control and individual output for each band• Cascaded summing outputsDIY-Kit-Type:THT-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. Only trough-hole parts to solder. Make sure to check the build guide before you buy. For build guide, more info, videos etc. please check the buttons below.
sold out at the moment
Experimental synth voice focused on ambient pads and drone-like soundscapes.Features:• Stereo External input with selectable gain.• 5-second looper Records either the stereo input or the module’s output• Sine oscillator• Supersaw oscillator• Wavetable oscillator that uses the Looper buffer• Multimode filter: low-pass, band-pass, high-pass, and comb filter.• 3-band resonator• 2-tap echo• Reverb with macro control for size, filtering, and direction.• CV Control with attenuators on most parameters.• Various types of self-modulation with configurable routing and control over level and speed.• External synchronization via sync input.• Powerful randomizer with four different targets, three levels of intensity and undo/redo.• Knobs catch behavior functionality for re-coupling parameters’ positions.DIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
available
Oneiroi is a full-stereo synthesizer crafted for dreamlike soundscapes, immersive textures, and cinematic atmospheres. At its core lies a rich combination of synthesis engines and creative sound processing: a sine wave oscillator, a versatile wavetable/supersaw voice, and a playful looper capable of recording external input or internal output with “sound-on-sound” layering. These elements flow into a powerful effects section featuring a multimode filter, resonator, stereo delay, and lush reverb—ideal for generating hypnotic drones, evolving pads, and experimental sonic landscapes.Modulation possibilities within Oneiroi are highly flexible, thanks to complex internal routing and a powerful randomizer that generates instant patches at the press of a button. With four distinct targets, three levels of intensity, and dual switch-controlled behavior, it lets you dial in anything from subtle variation to wild, unpredictable textures—complete with undo/redo to capture the perfect moment.The built-in 5-second looper not only captures audio but also feeds directly into the wavetable oscillator, enriching your sound palette with evolving textures. Whether you're layering field recordings, sampling your own tones, or sculpting ambient washes from scratch, Oneiroi encourages spontaneous creativity and deep modulation.This version includes a 4ms Pod 42 HP powered case, transforming Oneiroi into a self-contained, portable stereo powerhouse—perfect for live performance, studio exploration, and ambient sessions on the go.Features:• Stereo External input with selectable gain.• 5-second looper Records either the stereo input or the module’s output• Sine oscillator• Supersaw oscillator• Wavetable oscillator that uses the Looper buffer• Multimode filter: low-pass, band-pass, high-pass, and comb filter.• 3-band resonator• 2-tap echo• Reverb with macro control for size, filtering, and direction.• CV Control with attenuators on most parameters.• Various types of self-modulation with configurable routing and control over level and speed.• External synchronization via sync input.• Powerful randomizer with four different targets, three levels of intensity and undo/redo.• Knobs catch behavior functionality for re-coupling parameters’ positions.DIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
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Analog Thru-Zero Wavefolding VCO/LFOPony VCO is a fully analog Thru-Zero oscillator with wavefolder and dedicated VCA in only 4HP. The module offers great stability and tuning capabilities thanks to its powerful core, based on Sound Semiconductors IC. It comes with range selector, that allows it to go down to LFO range, as well as octave and waveform selectors.In Through Zero oscillators, frequency is controlled by either positive and negative voltage. If FM CV goes below zero, the core will continue oscillating inverting its phase. This “little” change of behaviour allows the core to create a whole new range of timbres that are just impossible to achieve with regular VCOs. If you set the module as LFO, the range of funky modulations will be endless!There is a separate panel for conversion to 1U available. You can use the 1U panel with the normal 3U module, but have to buy it additionally and you have to make some changes by soldering a hand full of SMD parts, but it's quite easy. 1U format keeping the same functionality and control layout.In Through Zero oscillators, frequency is controlled by either positive and negative voltage. If FM CV goes below zero, the core will continue oscillating inverting its phase. This “little” change of behaviour allows the core to create a whole new range of timbres that are just impossible to achieve with regular VCOs.If you set the module as LFO, the range of funky modulations will be endless!Features:• Through Zero Frequency Modulation• Wavefolding (Timbre)• Pulsewidth Modulation (PWM)• SYNC• VCA• LFODIY-Kit-Type:Semi-DIY-Kit. Most of the components are completely ready, you only have to assemble panel, knobs and some screws/washers.
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The Sampling Modulator is a multi-function module that lies somewhere between a VCO, a Sample & Hold, and an 8 step trigger sequencer.Sequencer Clocked Sample & Hold In this mode it acts like a regular Sample and Hold (S&H) but since it is “sequencer clocked”, it is capable of much more interesting patterns than the usual S&H melodies.The CLOCK input can work in two ways: 1. As a typical clock 2. In “positive going hard sync” mode allowing you to create shuffling and polyrythmic effects.The HOLD input can be used to keep certain notes playing.Analog Down-Sampling Effect In this mode (with the clock running at audio rates) you can go from nasty and harsh sampling rate reduction to an almost clean signal. (The clock run up to 25Khz without external CV and up to 200Khz with CV on the input).Sampling Modulator/Shaper Thanks to the V/Oct clock, by feeding a simple waveshape such as a sine wave to IN, and pitch CV to the VCO as well as to the Sampling Modulator CV input, their related frequencies and aliasing caused by the sampling rate reduction are capable of creating clangorous metallic sounds, 8 bit textures and much more.The game becomes much more interesting when you try to destroy the wave by flipping on and off the switches of the sequencer (which at times can make it sound like three VCOs running in unison).To understand how the Sampling Modulator works, keep in mind that we are working with a temperature compensated ramp core VCO with more than 4 octaves of tracking. This allows the timbre to stay the same while you move through the scale as the internal and external VCOs are synced in a fashion similar to “frequency related sampling rate modulation”Unusual V/oct VCO You can use the trigger outputs as a pulse VCO. Flipping the switches on and off the switches can offer a lot of interesting timbral changes.Sequencer Clocked Sample & Hold In this mode it acts like a regular Sample and Hold (S&H) but since it is “sequencer clocked”, it is capable of much more interesting patterns than the usual S&H melodies.The CLOCK input can work in two ways: 1. As a typical clock 2. In “positive going hard sync” mode allowing you to create shuffling and polyrythmic effects.The HOLD input can be used to keep certain notes playing.Analog Down-Sampling Effect In this mode (with the clock running at audio rates) you can go from nasty and harsh sampling rate reduction to an almost clean signal. (The clock run up to 25Khz without external CV and up to 200Khz with CV on the input).Sampling Modulator/Shaper Thanks to the V/Oct clock, by feeding a simple waveshape such as a sine wave to IN, and pitch CV to the VCO as well as to the Sampling Modulator CV input, their related frequencies and aliasing caused by the sampling rate reduction are capable of creating clangorous metallic sounds, 8 bit textures and much more.The game becomes much more interesting when you try to destroy the wave by flipping on and off the switches of the sequencer (which at times can make it sound like three VCOs running in unison).To understand how the Sampling Modulator works, keep in mind that we are working with a temperature compensated ramp core VCO with more than 4 octaves of tracking. This allows the timbre to stay the same while you move through the scale as the internal and external VCOs are synced in a fashion similar to “frequency related sampling rate modulation”Unusual V/oct VCO You can use the trigger outputs as a pulse VCO. Flipping the switches on and off the switches can offer a lot of interesting timbral changes.Features:• Sequencer Clocked Sample & Hold• Analog Down-sampling Effect• Sampling Modulator/Shaper• 8 Step Trigger Sequencer• Unusual V/Oct VCODIY-Kit-Type:THT-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. Only trough-hole parts to solder. Make sure to check the build guide before you buy. For build guide, more info, videos etc. please check the buttons below.
sold out at the moment
Cosmos is a new kind of module that will help you to creating complex modulation, sounds, patterns with ease and will lead you to new sounds territories.Inspired by early analog computers, Cosmos is a unique, innovative, very flexible and fully analog module allowing it to be used as: VCO, LFO, Ring Mod, Polarizer, “VCA”, “LPG”, Phase Lock Loop, Cross-Modulation, Minimum, Maximum, Logic Gates, Waveshaper, Complex gate generator, Fuzz, Distorsion, Gate extractor, Trig extractor, Gate generator, Voltage generator, Trig Generator, comparator, window comparator, complex comparator, Half-Rectifier, Full-Rectifier, Inverter, Buffered Multiples, Mixer, Difference, Compressor, Sidechain, compressor, VC Clipper, VC Switch, Clock doubler, Envelope follower, and more.With its wide fields of application Cosmos can replace many modules but it will also bring new colors to your palette thanks to its unique character. This makes Cosmos the ideal module whether you have a small case or a big system. 100% analog and with an intuitive interface Cosmos is also very easy to use, no menu and button combo problems.Inspired by the past and crafted for the future, 100% analog Cosmos was not only thought to be the center of any system but also to blend perfectly with the rest of your case to form a consistent and coherent system.Cosmos was designed not only to be a swiss army knife module but also to push you to explore and you help create new sounds and explore sonic territories that were previously unattainable.DIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
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The Eclipse is an analog stereo morphing oscillator that combines the sound character of classic analog oscillators with modern features for advanced sound design.At the heart of Eclipse is a high-precision analog triangle oscillator that tracks accurately over ten octaves. The module provides the full set of inputs and outputs you’d expect from a high-quality VCO, ensuring reliable integration into any Eurorack system.A central feature of Eclipse is its custom waveshaper, inspired by the EMS VCS3. Instead of a conventional wavefolder, this circuit generates rich and complex harmonics with wide-ranging sonic possibilities and dynamic control.The waveshaper concept is expanded into the stereo domain. The result is a dedicated stereo section that allows waveforms to move and spread across the stereo field while maintaining balance, adding a strong spatial dimension to synthesis.Eclipse offers full CV control for all parameters, with smart normalization that enables global modulation from a single source. Additional functions such as XFM, ULFO, Stereo Pulse Array Modulation, Stereo Pulsed Saw Modulation, and RM/AM modes extend the module’s capabilities far beyond those of a conventional VCO.Features:• Analog Stereo Morphing Oscillator• 100% Analog Module• Single high-precision triangle core VCO• 10-octave tracking range with high temperature stability• Morphing waveshaper with 3 modes original circuit design• 2 stereo modes : SPAM Stereo Pulse Array Modulation, SPSM Stereo Pulsed Saw Modulation• 1 quadrature mode : MorphX can be used for wave blending and RM/AM, sidechain ducking• LFO and ULFO modes cycles up to 1h• 3 FM modes: linear, exponential, and custom Xtreme mode• Index input for dynamic FM• Voltage control of both waveshaping and CV depth• Extra square wave based on the waveshaper’s output• Individual outputs: Sine, Triangle, Saw, Square, Sub, Morph-Square• Balanced image with voltage-controlled stereo spread• CV over all parameters• Global modulation hub normalizationDIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
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Ilse is an elegantly minimal, yet fully functional synthesizer voice in a compact 10 HP Eurorack module. The only thing you need to let it meow is a CV source to trigger its 1V/Oct frequency input (or a MIDI to CV converter and a MIDI sequencer) . Because it has a low part count it is ideal for Eurorack beginners or entry-level DIY projects.Ilse is named after a cat, living in the legendary “Villa” in Weimar, Germany. The “Villa” was a place where a community lived and came together. Many underground concerts and parties took place here before the house got sold, renovated, and the mayor moved in. We created the graphics on the aluminum face-plate in her memory. Ilse (the synth) makes great acid sounds, so it was only logical to illustrate a cat tripping. Turn the knobs to make her look around or roll her eyes.Ilse is designed to be affordable, easy to build, yet flexible, and feature rich. It is a synthesizer voice for your Eurorack, but can even be driven without a rack using two 9V batteries (not included).Ilse is fully open source (KiCad schematic and layout is available in a git repository) and inspired by Syntherjack’s single-chip synthesizer Totoro. Check out his website with nice explanations, e.g. on the filter (we use the same filter on Ilse). We extended the design for external voltage control on filter, oscillators and LFO. Unlike Totoro, Ilse is designed around a unique oscillator design, which integrates the exponential conversion directly into the oscillator core. This results in an efficient circuitry saving you build time, parts and costs.PCB and face-plate are manufactured in the EU.Features:Functions• Two saw tooth oscillators• Bridged-T low pass filter with resonance control• Triangle LFO with speed control, and routing to filter and/or oscillators• Simple mixer and detune for oscillatorsControls• LFO Speed, Filter Modulation, Osc Modulation• Filter Cutoff, Filter Resonance• Tuning, Osc2 Detune• Osc1/Osc2 (Filter in)• Output volumeInput/Output• 1V/Oct CV for oscillators (0-5V)• Gate (0-5V)• Filter cutoff (0-5V)• External filter input• Volume controlled output• LFO Speed (linear, via solder pad on back, 0-8V)• Oscillator 2 detune (linear, via via solder pad on back, 0-8V)DIY-Kit-Type:THT-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. Only trough-hole parts to solder. Make sure to check the build guide before you buy. For build guide, more info, videos etc. please check the buttons below.
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The Arkarion is a full-featured analog synthesizer voice in Eurorack format, designed for creative exploration and dynamic signal flow. Combining the warmth of analog circuitry with a digitally controlled internal routing system, Arkarion offers a unique blend of structure and unpredictability. It's an expressive, performance-ready instrument for musicians seeking deep modulation, generative possibilities, and hands-on control.At the core of Arkarion lies a digitally interpreted “DNA patch system” — a signal-routing framework inspired by genetic code. This system unlocks over 65,000 modulation and audio paths, allowing for rich, morphing textures that evolve at the press of a button or incoming gate.Features:• Complete analog synthesizer voice with digital routing control• 2 analog VCOs with selectable waveforms• MIDI input with pitch CV and gate outputs• Envelope generator with rise/fall stages, loop and gated loop modes• 2 CV-controllable LFOs for versatile modulation• Gate-triggered random voltage source• Multimode filter: lowpass, bandpass, highpass, allpass (switchable)• Tape-style analog delay with CV control• Digitally controlled “Gene Modification” knob for live routing mutation• 16-bit routing architecture: 65,536 possible patch configurations• 64 patch memory slots (8 banks of 8 presets)• Internal VCAs for modulation depth control• Randomize routing via button or external gate input• LED indicators visualize current patch structure and modulation pathsDIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
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The CubuSynth Engine is a dual analog VCO with wave shaping functions, internal modulations and a chaos generator. It is based around the 3340 chip and features 4 Waveforms + Wavefolder per VCO and 4 Modulated Outputs, all simultaneously.The CubuSynth Engine can work as 2 independent VCOs, or as one complex FM oscillator. With its inernal "Chaos Engine" it creates semi-random voltages, generated by the 2 oscillator cores. This signal is then normalized to the CV inputs for Pulse width modulation and exponential FM. Each of the 2 VCOs offers a switch to select one of the 4 waveshapes to be used by thewavefolders, and the linear FM input normalisations.Features:• 2 VCO cores (voices)• 4 simultaneous wave forms per voice + 4 Modulation Outputs• Wavefolder per voice• Pulse Width modulation• Linear and exponential FM inputs• 1 V/oct tracking stable over up to 10 octaves• Chaos generator with external clock input• Complex internal normalized modulationsDIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
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The Exhaust adds many features to your Engine VCO module like Sub-octaves, Mixing and a Gate generated by the Chaos signal.You can select one of the two VCO cores of the engine to produce square waves one and two octaves below the oscillators frequency. You can blend between -1 and -2 octaves and set the volume they are mixed into the main “Mix” output.The knobs “VCO1” “VCO2” and “AM” set the level of the selected waveform of each VCO and the AM output from the Engine to the main mix. The “Ext In” input is normalled from the RM output, but you can plug in any other signal to go to the main mix. The V Ref sets a Voltage between 0V and +10V which compares against the chaos signal from the Engine (Chaos attenuator on the Engine doesn't matter). Whenever the chaos signal is higher in voltage than the knob setting, it will give you a gate or trigger signal depending on the switch. There is also a CV input, which offsets your V Ref and can create interesting rhythms.Features:• Two sub-ocatve generator with selection switch, mix knob for -1 and -2 octaves (/2 and /4)• 5 channel audio mixer for 4 different outputs from the Engine and the sub-octave generator• External input for mixing with other signals• Semi-random gate or trigger output generated by the chaos signal• Audio-optimized chaos output• Separate outputs for sub-octave and main mixDIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
available
The Cali oscillator is a new and improved version of the classic Buchla 258 wave shaping oscillator with an additional pulse width modulated output.The oscillator features the classic Sine to Square and Sine to Saw wave shaping with dedicated CV control.The Cali Oscillator differs from previous versions of the 258 in that it has a 3-way position switch rather than 2-way.This new middle position features a bonus waveform that will shape from a pulse into a kind of triangular trapezoid shape.The shaping control is more unpredictable in this middle position and the switch reacts to body contact when the wave shape is set low – it can bethought of as an extra bonus waveform, great for producing glitchy sounds! There are dedicated inputs for linear and logarithmic FM and the Cali alsoadds a Pulse output with it’s own width control and PWM CV input.The behaviour of the pulse output can be affected by the position of the waveform switch and wave shape control.The module features Coarse and Fine frequency controls and an LFO mode, LFO range is accessed via an LED pushbutton that alsoacts as the LFO speed indicator – the button will light up when the waveform moves through its positive cycle.Because the wave shape modulation is independent of pitch this oscillator is very useful for creating complex timbres whilst retaining musical pitch.Features:• Sine to Saw/Square Waveform Output with CV over wave shaping• Pulse output with voltage controlled PWM• Linear FM with attenuator• Logarithmic FM with attenuator• Bonus ‘trapezoid’ output• Coarse & Fine controls with LFO mode• Includes power supply isolation on frequency controlsDIY-Kit-Type:THT-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. Only trough-hole parts to solder. Make sure to check the build guide before you buy. For build guide, more info, videos etc. please check the buttons below.
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The EN129 Thru Zero Oscillator is an all analogue triangle-core VCO specialising in frequency modulation.Analogue through-zero FM modulation produces a wide array of timbres particularly useful for bell like or percussive sounds.Through zero linear frequency modulation can be precisely dialled in thanks to a dedicated CV input attenuator and through zero offset control.Logarithmic FM is also available via it’s own dedicated input with attenuator and both FM inputs have an LED to indicate incoming voltages.Simultaneous analogue wave outputs include: Sine, Triangle, Sawtooth, Square and Pulse wave with Pulse Width Modulation.The PWM control goes to zero at either end of it’s range, which is very useful for creating rhythmic sounds with voltage control.Furthermore the PWM control doubles up as wave shape modulation for the Sawtooth wave – gradually altering the waveform until it shifts half a cycle.The EN129 features Coarse and Fine frequency controls as well as an LFO mode. LFO range is accessed via an LED pushbutton that alsoacts as the LFO speed indicator – the button will light up when the waveform moves through its positive cycle.A new addition of a Soft Sync Input allows the phase of the oscillator to be controlled by an external oscillator for an even greater range of timbres.Features:• Soft Sync Input• Thru Zero linear FM• Logarithmic FM• Zero to zero pulse width modulation• Sawtooth wave shape modulation• Simultaneous outputs for: Sine, Triangle, Saw, Pulse & Square• Coarse & Fine controls with LFO mode• Includes power supply isolation on frequency controlsDIY-Kit-Type:THT-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. Only trough-hole parts to solder. Make sure to check the build guide before you buy. For build guide, more info, videos etc. please check the buttons below.
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This DIY module brings FM percussion to your Eurorack system, combining the raw power of analog circuits with the sharp, metallic tones of FM synthesis. From punchy kicks and deep toms to clangy, metallic hits, the mki x es.EDU FM Drum covers a wide range of percussive textures.Developed by Erica Synths and Moritz Klein as part of the educational mki x es.EDU series, this kit is designed not just for building, but for learning. It’s aimed at beginners and curious makers who want to understand analog synth design from the ground up.More than just a soldering project, this kit walks you through the full design process, explaining how each part of the circuit works and how sound is shaped, step by step.Features:• DIY FM drum voice – from kicks and toms to metallic clangs• Combines analog synthesis with FM-style sound shaping• Educational kit designed for beginners and learners• Part of the mki x es.EDU series by Erica Synths & Moritz Klein• Detailed build guide with circuit design explanations included• Inspires hands-on learning and deeper understanding of analog soundDIY-Kit-Type:THT-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. Only trough-hole parts to solder. Make sure to check the build guide before you buy. For build guide, more info, videos etc. please check the buttons below.