Envelope
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The VC ADSR is our take on the classic ADSR: now smaller, more powerful and user friendly. The circuit is based in a dual transistor “Current Mirror” (a voltage controlled integrator) and switching logic.Phase Time Limits:Attack: Min 3.0ms (down to 200µS with negative CV) // Max 10sDecay: Min 2.8ms (down to 400µS with negative CV) // Max 10sRelease: Min 2.8ms (with Sustain at maximum) // Max 10sFeatures:• Voltage controlled stages with manual control.• Gate output on each stage of the envelope.• Push button and Gate/Trigger input• Control of the response curve between each stage of the envelope (from linear to logarithmic/exponential)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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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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As its name implies, EG LFO is composed of an Envelope Generator and an LFO.The envelope generator offers control over Rise, Hold and Fall time. Two ranges of envelopes are available: slow and fast. You can also modify the speed off the fast mode using the speed expander on the back of the module.At the output you will find the envelope output and an inverted copy of the envelope.EG LFO II also features a LFO mode, the speed can be controlled by using the rise and fall control. Two speed modes are available, LFO range in slow mode and audio range in fast mode. You can modify the speed off the fast mode using the speed expander on the back of the module.At the output you will find the LFO output and an inverted copy of the LFO.DIY-Kit-Type:SMD-Kit-2. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. It includes SMD and through-hole parts! For build guide, more info, videos etc. please check the buttons below.
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As its name implies you could think that SLEW/LFO is just a Slew and a LFO packed together but its more than that.We wanted to design a module around the Slew generator which is an underestimate function of a synth. Its often seen and use as a way to make portamento but we've thought it could be more than that.We wanted to design a small module so it could fit in any case. We wanted it to be ergonomic and easy to use despite its size. But we also wanted to pack as much features as possible to make it a "swiss knife module".The result is SLEW/LFO: a 4 HP wide module, that can be used as portamento, AD envelope, LFO, VCO, Filter, Envelope generator and much more.SLEW/LFO is so versatile that we use it in all our patchs, we are very pleased about it and hope you'll like it as much as we are.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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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 CubuSynth 4Decay offers 4 envelopes for percussive and plucky sounds. The gate inputs are normalized to the jack below, which lets you use the same gate signal for 2, 3 or all 4 channels at the same time.Features:• 4 channel Decay envelope• Normalized Gate inputs• 1ms to 2 second Decay time• LED per channel to indicate Output voltage• Output at 5V maxDIY-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 ADSR is a very versatile envelope generator. It features linear or exponential curves, TIME CV which shortens the overall time of the whole envelope, different mode settings, Level CV (saves an extra VCA) and normal (0V to +5V) and inverted (0V to -5V) Outputs.The TIME CV makes an excellent modulation input for either envelope modulation or LFO frequency modulation. It also has a PUNCH switch which holds the maximum level for a few milliseconds before starting the Decay stage. This is very useful for adding extra punch to short percussive envelopes.Features:• GATE and TRIGGER inputs for retriggering• MODE switch that allows selection of normal ADSR, Gated looping, or full LFO-style Looping mode• LEVEL CV for additional Volume control / Velocity input (Volume on 100% when nothing plugged in)• TIME CV for very dynamic modulations• Switch for linear or exponential mode• Two Outputs (normal 0V to +5V and inverted 0V to -5V)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 Dannysound Dynamics is a compressor / expander originally designed to process drums but like most processing devices, it can be used for a wide variety of applications.The module comprises of:• Compressor / Expander• Sub Bass Enhancer• 3 Band Inductor-based EQ• Harmonic ExciterThe compressor / expander section uses a discrete transistor-based circuit that allows for soft clipping when overdriven.The envelope detector is known as a feedforward type of circuit; taking it’s input from the signal before it goes to the compressor rather than after.This type of circuit is known for having fast attack times.The Sub Bass enhancer has its own compression circuit that “ducks” the initial transient. This allows the sub bass to be increased without distortionon the transient peaks increasing the overall level.There is a MIX control to allow the unprocessed signal to be mixed back in with the processed signal.The 3 band EQ is an inductor based LCR design. After trying out various EQ topologies this was the design that sounded the nicest.When overdriven it gives a nice “bite” to the sound and it has a certain characterful charm that’s hard to put into words.The controls have a response that are subtle to begin with and get more pronounced as the controls are increased.The Harmonic Exciter adds a little distortion to the high frequencies which bring out the sparkle of cymbals or the snap snare drums.The operating bandwidth can be switched between Low (snare drum snap) or High (Cymbals sparkle).There are inputs for side chaining and control with an external envelope as well as an envelope out to make the envelope detector output available to drive other modules.It also features separate inputs and outputs for the Compressor / Expander and EQ sections, so they could be used as 2 separate modules.Features:• Compressor / Expander• Sub Bass Enhancer• 3 Band Inductor-based EQ• Harmonic Exciter• Envelope In/Out• Sidechain Input• Separate In/Out for Comp/Exp and EQ sectionsDIY-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 LOOPING VCADSR is a 4-stage envelope generator that uses a Microcontroller from Electric Druid to generate a Voltage Controllable,Loop-able Envelope. The individual parts of the Envelope (Attack, Decay, Sustain, Release and Level) can all be individually controlled via CV.This module has 3 MODES of operation:• Normal Envelope – Gate signal fires ADSR• Gated Looping Envelope – ADSR loops whilst gate signal is high.• Looping Envelope – ADSR loops regardless of gate signal.When the envelope is looping, all 5 controls affect the output. Attack and Decay operate, as one would expect.The Sustain control sets the minimum voltage the decay part of the envelope will decay to.The Release sets a release time from the end of the Sustain period to the beginning of the next cycle.When the Sustain is set to 0 you can use the Release control to add a delay between the Attack and Decay cycles.In Normal Envelope mode the Sustain CV input can be used with an LFO source to add amplitude modulation that gradually increasesas the Envelope transitions from the Attack/Decay part of the envelope into the Sustain part.The Level CV is also a useful point for amplitude modulation or can be used for Velocity Sensitivity via CV.Features:• 3 Modes of operation: Normal, Gated Loop, Constant Loop• CV over: Attack, Decay, Sustain, Release, Level• Works with GATE signals from +5V to +12V• Output CV range 0V to +10V• Based on the ENVGEN circuit design from Electric DruidDIY-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 is an easy to build Envelope Generator with a really extensive documentation and explanation of the circuit. Excellent learning kit!Many iconic sounds like the squelchy acid bass line, snappy techno kick drum, and swelling dream pop pad wouldn’t be possible if it weren’t for envelope generators. So, the next module in the mki x es.edu line is a slightly optimized ADSR envelope generator. Optimized because it has only 3 controls. With sustain on, it outputs an ASR (attack/sustain/release) envelope, but when the sustain is set to a minimum, it becomes an AD (attack/decay) envelope generator that ignores gate length; Release and Decay are controlled by the same knob. A looping function and an inverted output make the module more versatile for complex patches. The full EDU DIY system is designed to have 2 EG modules, therefore everyone aiming to build the whole system will need 2 kits.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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This is probably the fastest envelope generator in Modularland.Why? Because it is based on the fastest one. The classic Japanese modular from the seventies everyone loves.Features:• 4 control pots:Attack, Decay, Sustain, Release• 1 gate switch: triggers ADSR cycle• 1 time switch: switches between fast and slow envelope times• one normal and one inverting output jack 10V peak• standard 10 pin euro power (+12V / -12V)DIY-Kit-Type:SMD-Kit-2. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. It includes SMD and through-hole parts! For build guide, more info, videos etc. please check the buttons below.
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This is an envelope generator based on the SMD AS3310. The AS3310 is a modern recreation of the classic Curtis CEM3310 chip, used in many famous mono and poly analogue synth from the eighties. We took the best ideas from all the classic 3310 circuits and tried to squeeze the maximum from this fantastic chip. The MODE switch takes this module beyond a simple ADSR type envelope generator.It can work as:• NORMAL - a conventional ADSR envelope,• DAMPED - an ADRR piano envelope approximation• AUTO - a short gate will cycle the envelope shaper through a complete ADR envelopeIt has an additional TRIGGER input which can be used for generating multiple peak envelopes.Features:• 4 control pots:Attack, Decay, Sustain, Release• 1 gate switch: triggers ADSR cycle• 1 mode switch: Normal (ADSR),Damp (ADRR),Auto (ASR)• 1re trigger input• standard 10 pin euro power (+12V / -12V)DIY-Kit-Type:SMD-Kit-2. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. It includes SMD and through-hole parts! For build guide, more info, videos etc. please check the buttons below.
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This is an envelope follower based on a classic module from the seventies but with some improvements to suit modern needs.The IN signal is routed to the envelope follower circuit and also to a THRU output, so the original signal is also available for external processing.The envelope follower has three controls, a switch to select response time (fast, medium, slow), a pot to adjust GATE threshold and a pot to adjust the envelope CV level.This little module will help you shape the timbre and/or the level envelopes of your sounds. From dynamic envelope filtering to compressor like side chaining there are lots of possibilities to mangle your audio.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 4 HP combined looping AR generator and triggerable LFO. Blades Of Ingenuity is a simple but surprisingly useful module consisting of two elements.Features:Attack/Release generator• one shot and looping modes• looping mode range 19 Hz to 5 secondsLow Frequency Oscillator• sawtooth/triangle/ramp switch• externally retriggerable• range from 19 Hz to 60 secondsDIY-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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CEMvelope is based on the legendary ADSR section of the Sequential Circuits Pro-One monosynth, with minor adaptations to integrate it into Euro format. Smooth and snappy!It has a gate input as well as a trigger input, the trigger input works in conjunction with the gate input for multiple triggering from a suitable controller device.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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Full featured, fully modular synthesiser for Eurorack with a pre-patched normalised signal path for quick setup.A combination of the XVCO TWO, Raging Bull 3.0 VCF/VCA, and System X Envelope, where each section can be used completely individually or as part of the larger whole.Onboard LFO for PWM and FM and Noise Source.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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Shapes is a wide ranging and fully analogue oscillator which can perform duties as both auxilliary VCO* as well as VC-LFO. Shapes can be configured to cycle continuously, or to provide one-shot shaped outputs. When set to one-shot mode, Shapes may be used as an ersatz envelope generator.Using the Time knob, Shapes can cycle from as low as 8 seconds (whale song) to as high as 19500Hz (bat beeps).Shapes has 3 simultaneous outputs:sawtooth (+/-5V, 10Vpp)ramp (+/-5V, 10Vpp)triangle (+/-5V, 10Vpp)Additional waveforms may be derived courtesy of the Shape knob. Anticlockwise from 0 achieves progressively logarithmic sawtooths and ramps, whereas clockwise from 0 achieves progressively exponential sawtooths and ramps. The effect of the Shape knob on the triangle waveform is asymmetric, anticlockwise from 0 achieves progressively logarithmic leading edge, whereas clockwise from 0 achieves progressively exponential falling edge. Progressively exponential triangle waveforms can be achieved using the Time CV knob (set Shape knob to 0) providing there is no jack in the Time CV input socketTime CV input provides wide ranging control of time. It is possible to dial in something approaching 1V/oct over a limited range, although Shapes has not been designed to perform as an accurately tracking VCO. In the audio range, Shapes comes into it’s own when used as a ‘daughter’ VCO to an external ‘mother’ VCO by patching the ‘mother’ VCO into Shapes’ Gate In input socket – some impressive oscillator sync style effects can be achieved.Gate In can also be used to initiate waveforms in one-shot mode, where a pulse of any length will cause Shapes to complete one cycle.*Shapes has not been designed to perform as an accurately tracking audio VCO.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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Envelope Generator, based on the Roland System 100M 140 ADSR. “The snappiest ADSR in the world”.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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This is the DIY version of this unit.Pathways is a modular matrix mixer designed for feedback manipulation, creative routing, weird synthesis… and many other things.Based around sixteen analog VCAs it can be the central hub of many different setups and a bridge between desktop gear and eurorack systems.Features:• 4x 1/4″ inputs with gain / drive control, 4x 1/4″ outputs• Each of the 16 matrix intersections can be controlled manually or via CV, a dedicated LED gives visual feedback of the channel volume• An envelope follower is normalled to input four, the signal then gets fed through a clock divider with three cascaded outputs. Willingly, an external signal can be inserted into the divider• Two voltage controlled LFOs can modulate any parameter and create dynamic feedbacks, asymmetrical panning, tempo-related fx send/returns• If patched into itself, each channel can self oscillate so it can be used as a polyphonic cv-controllable drone synthesizer• full eurorack compatibility, each parameter has its own 1/8″ input jackDIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled unit. The kit includes all parts to build the unit. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.