Mixer
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EDU DIY Output Mixer 2 is an intermediate-level learning kit from the mki x es.EDU Drums System, created by Erica Synths and Moritz Klein. It teaches you how to build and understand a 4-channel Eurorack output mixer from scratch, starting on a breadboard and ending as a fully functional Eurorack module using the included PCB and panel.The circuit covers essential analog audio building blocks, including an inverting op-amp summing mixer, per-channel volume controls, a send/return loop, diode soft-clipping distortion and a headphone driver. The detailed illustrated manual explains each stage with clear diagrams and analogies, making the kit a practical way to learn how mixers, distortion circuits and headphone outputs work.Once assembled, EDU DIY Output Mixer 2 provides four input channels with individual level controls, per-channel sends, a return control, a variable distortion insert effect, plus line and headphone outputs. It is designed as a hands-on educational project for builders with basic electronics knowledge and previous DIY experience.All small components for the breadboard build are included, together with the Eurorack PCB, panel, power cable and a 40+ page digital manual. A breadboard, jumpers and a dual power supply are required separately. For a smoother learning experience, the kit can also be used with Labor, Erica Synths’ dedicated prototyping platform for EDU DIY learning kits.Features• Part of the mki x es.EDU Drums System by Erica Synths and Moritz Klein.• Breadboard learning build plus final Eurorack PCB and panel.• Four input channels with individual volume controls.• Send/return loop with per-channel send and return control.• Variable diode soft-clipping distortion.• Line output and headphone output.• Teaches op-amp summing, mixing, distortion and headphone driver design.DIY-Kit-TypeTHT-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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Mixing might be more of a utility function in a modular synthesizer – but this doesn’t necessarily mean it has to be dull and boring. Case in point: this super simple three-channel mixer with built-in diode distortion will make your patches sound delightfully rough.We – Erica Synths and Moritz Klein – have developed a series of educational DIY kits under the brand name mki x es.EDU with one specific goal in mind: to teach people with little-to-no prior experience how to design analog synthesizer circuits from scratch. What you’ll find in the box is not simply meant to be soldered together and then disappear in your rack. Instead, we want to take you through the circuit design process step by step, explaining every choice we’ve made and how it impacts the finished module.In total, we have developed 9 kits to build a fully-featured modular monosynth: a sequencer, a VCO, a wavefolder, a noise/S&H module, a mixer, a VCF, an Envelope generator, a dual VCA, and an output stereo mixer with a headphone amplifier. Additionally, an affordable eurorack case with a DIY PSU will also be available. While these kits are easy to build, we did not compromise on design and functionality. We will launch one kit every 4-6 weeks. For each kit, there is an extensive user manual (40+ pages; can be downloaded separately) that will dive deep into not only the electronics behind each circuit but also the fundamental principles of sound synthesis. We hope that the mki x es.EDU project will inspire future engineers and will contribute to the ever-growing diversity of electronic music technology.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 CP3MINUS is the 6HP SMD variant of CP3+ Mixer, minus the MULTI section.Features:• 4 mono analog input• 4 input level pots• 1 dual level pot• One inverting and one non-inverting output jacks• 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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The JP8 VCF module is a versatile and authentic filter offering 2-pole (12 dB/oct) and 4-pole (24 dB/oct) low-pass modes, along with a high-pass filter. Built with AS3109D and AS662A ICs, WIMA polypropylene capacitors, and 2SK30ATM-GR J-FET transistors, it ensures high-quality performance.Key features include two mixed signal inputs, independent outputs for 2-pole and 4-pole modes, and an alternate output with selectable modes via a switch. CV inputs operate at 0-5Vpp, with attenuation available for 10Vpp signals through the CV1 pot.This module is a collaboration between Feedback Modules and CMS-LAB.Features:• AS3109D and AS662A, ALFA RPAR modern identical to the original IC clones• High Pass Filter made with AS662A• WIMA polypropylene capacitors• Selected 2SK30ATM-GR N-channel J-Fet transistor• Two mixed signal inputs• Independent outputs for 2-pole, 4-pole and an alternate output with selection of modes from a switch• The CVs are 0-5Vpp, 10Vpp CVs can be attenuated with the CV1 pot.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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LinMix is a compact 6HP mixer suitable for audio signals and modulation CVs. It is DC coupled.Features:• 4 audio/cv inputs• 1 audio/cv output• 4 input volume/gain pots• 1 output level pot• Standard 10 pin euro power (+12V / -12V)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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Sound Design channel strip based on a famous late eighties small mixer used by many electronic musicians for the techno sound of the nineties.Features:• 1 audio input• 1 gain pot• 2 EQ pots: low and hi• 1 output level pot• 1 audio outputDIY-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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Sound Design channel strip based on a famous late eighties small mixer used mostly for the well known TB303 distortion sound.Features:• 1 audio input• 1 input gain potentiometer• 2 EQ potentiometers: low and hi• 1 output level potentiometer• 1 audio output• Standard 10 pin euro power (+12V / -12V) (works also at +15V / -15V)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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Sound design channel strip based on a famous late seventies small mixer used by many electronic music bands.Features:• 1 Audio input• 1 Gain pot• 2 EQ pots - Low & Hi• 1 Output level pot• 1 Audio outputDIY-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 VCF from the famous British pin matrix synth released in 1969.The VCZIII series VCF is a result of the collaboration of Feedback modules and CMS-LAB and is a modern re-creation of those temperamental, organic and beautiful sounding VCF from 1969 but with enhancements and adaptations to the Eurorack needs of 21st century.Features:• AS394 ultra well-matched monolithic NPN transistor pair• selected and matched BC550 and BC560 transistor pairs• WIMA capacitors• selected 2N3819 FET transistor• two mixed signal inputs• the CVs are 0-5Vpp, 10Vpp CVs can be attenuated with the CV1 pot and RESO CV potDIY-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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Expandable 4 channel VCA based stereo mixer with tone shaping and FX bus. Strips is also expandable! You can add a second strips, connected to the first via a 16 pin to 16 pin cable. The cable powers the second Strips and gives you 8 channels to play with. The second Strips accesses the first Strips FX bus. When using in expanded configuration, the FX send/return and main outputs for the second Strips are not available.FX phase jumper – because not all FX that you might use in the FX loop are in phase with respect to their input/output. The phase jumper allows you to compensate for this and avoid weird phase cancellations.Features:• 4 x input channels, each featuring LEVEL, HIGH, LOW, FX send, PAN, MUTE and CV control of level.• FX send and stereo return + FX phase jumper• Left and Right Eurorack level inputs (2 x 3.5mm sockets)• Left and Right line level outputs (2 x 6.35mm sockets)• Scribble strips!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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Wonderland is an 8×8 active patchbay/matrix mixer/switcher for both audio and control voltages.Any of the 8 inputs can be patched to any of the 8 outputs simply by pressing the corresponding switches. A patched signal will appear at both normal and inverted outputs simultaneously.A single input can be patched to a single output. A single input can be patched to multiple outputs. Multiple inputs can be patched to a single output. Multiple inputs can be patched to multiple outputs.Each input features a micro-attenuator which can be set with a small screwdriver. This space saving feature allows you to reduce the volume of an incoming signal without having to resort to external attenuators. If you add many inputs to one output you will of course cause clipping (which may or may not be desirable!), the micro-attenuators are your on-board way around this. I find it useful to leave the micro-attenuators set to 50% (which is how they come pre-set at delivery). Of course, their size is a little bit of a compromise, but they are a useful feature nonetheless. Wonderland’s sister module Looking Glass includes full size input attenuators as well as LED status indicators.Features:• 8 inputs (1 through to 8), each with micro-attenuators (which can be set with a small screwdriver)• 8 buffered inverted outputs (A through to H) which are 180o out of phase with the inputs• 8 buffered normal outputs (A through to H) which are in phase with the inputs• A switch matrix of 64 push on/push off switchesDIY-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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Herzlich Labs - R2R Ladder 8-bit DAC. It's a passive R2R ladder circuit, which will do all kinds of neat things in your system. Use it as an 8-Bit Digital to Analog Converter, punch in a bunch of digital signals in every numbered input, and from the output you shall find a delightful analog signal.Or why not use it as a weird, passive weighted mixer? A fixed-setting attenuator? Why not plug in a bunch of stuff and just see where it takes you? I promise it's safe, thanks to the brilliant design and architecture of the Herzlich R2R.In delightful 3 HP to fill that space left by another odd-sized module.Features:• Passive 8-bit DAC• Use it as a mixer, fixed attenuator or a number of other things• Flexibly use anything as input or outputDIY-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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AGOGO is an octal analogue vactrol-based low pass gate and mixer in a cascade configuration. Each one of its input, CV and output is normalized and buffered to the next one: it can be used as a multiplier and a mixer for both audio and CV.Inputs are normalled and outputs are mixed: thanks to this configuration it can be used as a modulation matrix and a signal router. More units can be chained to increase the number of I/O.Features:• 8 independent vactrol LPGs.• Classic logarithmic vactrol curve and latency.• Two LPG flavours: brighter - blue LEDs - and darker - red LEDs.• Open design signal path: break the normalization at any point to change its configuration.• Input and CV are normalled and they flow top to bottom when no jack is inserted.• Outputs are summed to create sub-mix on the go.• Unlimited units can be chained together.• Works with audio and CV sources.• “Whatever” power connector a.k.a. don’t mind the polarityDIY-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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Macro ControllerKNOBI is a multi-tool able to mix, attenuate, invert, display and multiply any kind of signal. Knobi can serve a wide range of purposes thanks to its internal signal path that makes use of some of the most useful building blocks of analog synthesis: a 4-channel mixer, a three-range offset, an attenuverter, a fixed manual gate and lastly a cascading multiple derived from the output stage of Agogô.a, b, c and d are Knobi’s inputs while r is a fixed 5v reference output. The toggle switch next to d sets the range of the offset - the big knob below the meter. Connect a signal into one of the inputs to visualize its voltage value in the three digits meter. Keep in mind that this reading happens post offset and attenuverter - the smaller knob with (-) and (+) indications.The pushbutton next to x4 adds a gate of 5v to the mix: with no input connected it will act as a manual gate output. Autopatch the r reference output into one of the inputs to use Knobi as a macro controller thanks the offset knob and switch to set the range and the attenuverter.x1, x2, x3 and x4 are all cascading copies of the final signal path. Plugging a cable will break the normalization and the multiplication will reset starting from the next output. Four cables plugged in will output a copy at the same factor x1 - unity gain - making Knobi a versatile buffered multiple.Features:• Thermally compensated 5v voltage source with dedicated output.• Four channel mixer with four buffered output.• Built in 3 digits voltage meter post mix / attenuation / inversion.• Offset with a dedicated three positions range toggle.• Manual gate button tied to the mix.• 4 cascading outputs in an open design configuration.• Unique signal path: mix - attenuate - invert - add - visualize - multiplicate.• “Whatever” power connector a.k.a. don’t mind the polarity.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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SINGOLI is a 7 channel DC coupled active combiner with an analogue transient detector output.All the inputs I are equipped with LED meters and a dedicated attenuating potentiometer.O will give you the combined mixed output.T is an additional transient detector out that will fire only when a certain threshold is detected from the sum of all the inputs.The toggle switch activates or deactivate the internal connection to Tutto&Sempre when the two modules are paired together thanks to the included JST cable.Features:• DC coupled mixer with 7 inputs and individual attenuators.• Intensity sensitive LED meters on all the inputs.• Analogue transient detector output.• Toggle switch to activate / deactivate its normalization to Tutto&Sempre.• “Whatever” power connector a.k.a. don’t mind the polarity.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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TUTTO&SEMPRE is a stereo performance mixer with 4 channel strips, an active patchbay, individual VCAs, clickless mutes, individual post attenuation direct outs, a main balanced stereo output and two high fidelity headphones drivers with switchable stereo inserts.Features:• Four channel stereo performance mixer.• Signal path optimized for the integration between modular systems and outboards.• Versatile mixing frame with an active patchbay, stereo attenuators, paired VCAs and clickless mutes.• Line level balanced L and R output + combined stereo with master auxiliary input.• Two independent headphones drivers with switchable individual stereo preview input.• “Whatever” power connector a.k.a. don’t mind the polarity.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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D3MIX by Maffez is a passive triple level-module that lets you route signals between different paths in a clever way.First, your signal is routed between ground and a point "b", allowing you to cover simple tasks like signal starvation, attenuation, splitting and passive mixing. With creative patching you can also do some pretty interesting things like asymmetric modulations, which is illustrated and explained in more detail in the manual.Another mode lets you control between individual channels and a common "node", creating multiples in a flash, realising a 3-1 mixer or a 1-9 distributor. Experimental or pragmatic? Definitely both, and fun either way!Read more info and hear audio demos on the Maffez website. https://maffez.com/?page_id=2872Maffez developed this module in dialogue with Pedro Eustache, who uses some of the gizmos in his rack during the show "The World of Hans Zimmer" and the soundtracks of "The Mandalorian" and "Avatar: The Way of Water". Maffez said he would like to donate part of the income from the module to Omas for Future.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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Multiplikand is a compact routing utility module for Eurorack in 6HP. It takes Audio and CV, with optional DC filtering.At its core, Multiplikand offers four active precision multiples. Clever normalisation and a switch allow you to configure how the signals are summed.The module has pin headers in the back so you can break out from prototyping platforms like Arduino, Teensy, Daisy and Bela to Multiplikand's inputs with jumper wires.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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Goldfinger is a passive desktop matrix mixer played by touching its gold surface. Six bidirectional sockets let you choose how many signals to mix or distribute: use five inputs and one output for mono mixing, four inputs and two outputs for stereo, or one input and five outputs to distribute a signal.Your skin provides the resistance between contacts, so finger position, pressure and movement change the connections. Audio and pulse signals work well; control voltages can also pass through the surface, but less readily. Signal bleed, noise and possible distortion are part of its experimental character. Goldfinger arrives assembled and requires no soldering or power supply.Features• Passive touch-controlled matrix mixer• Six bidirectional sockets• Flexible mono, stereo and signal-distribution patching• Real gold contact surface• Responds to finger position and touch• Desktop format; no Eurorack rack space required• Pre-assembled; no power supply required