Synths + Kits - DIY Kits - Page 1 - synthCube

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Black Noise Modular

Black Noise Modular Ether

From the manufacturer: Ether is a 4HP output module, the bridge from your eurorack system to professional recording and liveenvironments. A compact, effortless, crystal-clear, and reliable connection to the outside world, matchinghigh-end DI box...

$160.00 - $215.00

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MFOS Music From Outer Space

MFOS Sound Lab Mini-Synth PLUS Eurorack Version

One of Ray Wilson's most popular projects, NOW AVAILABLE AS A EURORACK MODULE! An ALL-IN-ONE synthesizer voice to serve as the foundational module for Eurorack rigs! This is a fully-featured synth voice that includes two Oscillators, LFO, VCF, AR...

$109.00 - $349.00

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Oakley Modular

Oakley Modular 5U Human Voice HVM MOTM

The Oakley Sound HVM is an all-analogue audio signal modification device that replicates some of the sounds made from a classic electronic keyboard first seen and heard in 1979. The VP-330 is often thought of as a string synthesiser and vocoder but some...

$15.00 - $219.00

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Blacet Research

Blacet Research Splitter Buffer Mixer SBM3200

Blacet Research Splitter Buffer Mixer SMB3200 The SBM3200 combines three channel Mixing and three channel Splitting in one module. Also included is a four output active ultra-precisions Buffer especially useful for driving multiple VCOs. Both the...

$35.00 - $119.00

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Blacet Research

Blacet FX/Reverb FX3030 (Time Machine II)

Blacet Research FX/Reverb FX3030 Time Machine II-- Digital evolution of the classic BBD Analog Delay for modular synthesizers! This is a special module- a rare beast, a classic sports car powered by 'bleeding edge' (for the time it was released) digital...

$129.00 - $199.00

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Blacet Research

Blacet Dual VC Frequency Divider FD3120

Blacet Research Dual Voltage Controlled Frequecy Divider Module The FD3120 is a dual VC frequency divider allowing 16 divisors of 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 16, 24 and 32 on each channel. The 'B' channel can be switched to provide...

$30.00 - $119.00

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Blacet Research

Blacet Delay/Attack/Decay/LFO DAD2970

Blacet Research Delay/Attack/Decay/LFO DAD2970 The Blacet DAD2970 is an event generator with Delay, Attack, and Decay segments. The DAD can also be looped yeilding an LFO. Logic timiing is handled by a small microcontroller to minimize component...

$30.00 - $119.00

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Blacet Research

Blacet Time Event Modulator EG3870

The Time Event Modulator is a full DADSR envelope with more CV processing features and more outputs, housed in a compact compact 3.5" depth Frac format module.

$45.00 - $179.00

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Beast-Tek

DEEP DISCOUNT: SEISMIC INDUSTRIES

WATCH THIS SPACE! Deeply discounted modular synth kits from this maker- available here. Over the years we have built/made/offered more synth modules kits then we have sold. Take advantage of our overstock and add to your system at DEEP DISCOUNTS! Support...

$39.00

$19.00 - $39.00

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DEEP DISCOUNT BARTON KITS/MODULES

WATCH THIS SPACE! Deeply discounted modular synth kits and modules available here. Over the years we have built/made/offered more synth modules kits then we have sold. Take advantage of our overstock and add to your system at DEEP DISCOUNTS! Details...

$69.00

$25.00 - $120.00

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Beast-Tek

DEEP DISCOUNT: BEAST-TEK

WATCH THIS SPACE! Deeply discounted modular synth kits from the out-of-business maker- available here. Over the years we have built/made/offered more synth modules kits then we have sold. Take advantage of our overstock and add to your system at DEEP...

$25.00

$12.00 - $99.00

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Frequency Central

Frequency Central Florian Modular Synthesiser

From the manufacturer: Florian Modular Synthesiser White Panel Edition What if a Roland SH-2 had a modular baby with an ARP Odyssey, but the midwife was a mad English scientist? Florian is our first dual VCO synthesiser! The name is a tribute...

$169.00 - $669.00

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Oakley Modular

Oakley Modular Euro SVF (State Variable Filter)

The Oakley SVF is a 10HP wide two stage multimode filter module capable of high pass, low pass, band pass and notch output modes. All four outputs are available simultaneously. The module is a stand alone version of the filter in the Oakley ASV 5U module...

$30.00 - $249.00

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Oakley Modular

Oakley Modular Euro MOSPhaser

The 6HP Oakley Sound MOSPhaser is a six-stage, 1970s-inspired phaser featuring five variable all-pass filter stages that utilize a single 4009UBM CMOS IC for simplified, matched-component construction [1]. It features an internal triangle-wave LFO (0...

$30.00 - $249.00

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Nonlinearcircuits (NLC)

NLC1161 The Shaver Mystery

From the manufacturer: The Shaver Mystery 8hp This module contains two BBD based Flanger circuits. One is set by a pot, the other is voltage controlled (or just set by a pot). The intention is to create a thru-0 effect as the voltage controlled Flanger...

$42.00 - $149.00

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Snazzy FX

Snazzy FX Telephone Game

Inspired by sample and hold / analog shift register with some very unique features. This beast incorporates not one but five sample and holds, chained together, with two controllable feedback taps, individual outputs at five points, a wave...

$330.00

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Oakley Modular

Oakley Modular Euro HVM – Human Voice Module

The 8HP wide Oakley Sound Human Voice Module (HVM) is an all analogue audio signal modification unit that replicates some of the sounds made from a classic electronic keyboard first seen and heard in 1979. The VP-330 is often thought of as a string...

$30.00 - $249.00

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Oakley Modular

Oakley Modular Euro Croglin – VC Dual Filter

The 10HP wide Oakley Croglin Voltage Controlled Filter (VCF) is based around two low noise ‘Sallen-Key’ filter circuits that operate either together or against each other. The cut off frequency of both filters, named A and B, can be...

$30.00 - $249.00

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Oakley Modular

Oakley Modular Euro COTA – VC ‘Cascaded OTA’ Filter

This is a 10HP wide four pole multimode filter module capable of -24dB/octave low pass, -12dB/octave low pass and +/-6dB/octave bandpass outputs simultaneously. The filter core is based on four identical cascaded current controlled integrators. This is...

$30.00 - $249.00

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Oakley Modular

Oakley Modular Euro Dual VCO V2

The 14HP wide Oakley Dual VCO, or DVCO, is two traditional sawtooth core voltage controlled oscillators in one module sharing a single common 1V/octave input. Each oscillator features a sawtooth (falling ramp) and variable width pulse wave output. VCO2...

$30.00 - $169.00

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Oakley Modular

Oakley Modular Euro Envelope ADSR

The 6HP wide Oakley Envelope is an easy to use four stage envelope generator with switchable looping mode. The ADSR is operated by a traditional gate signal, but can also be triggered by slow rising CVs too due to the built in schmitt trigger function...

$30.00 - $249.00

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Oakley Modular

Oakley Modular Euro Classic VCA (SMT 6HP)

The 6HP wide Oakley Classic VCA is a new version of one of my first Eurorack modules. This is a voltage controlled amplifier module inspired in part by a classic vintage design, the ARP4019 sub-module which was used on the wooden case ARP2600P...

$30.00 - $249.00

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Oakley Modular

Oakley Modular Euro Multimix

The 6HP wide Oakley Sound Eurorack Multimix is highly useful mixer module that can be used to process both control voltages (CVs) and audio. It is based on the original ‘Stooge’ version of the Oakley Multimix for 5U. The unit features three...

$30.00 - $249.00

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Synthesis Technology

MOTM-310 uVCO (dotcom/MU/5U Format)

Synthesis Technology MOTM-310 uVCO (dotcom/MU/5U Format) Paul Schreiber’s classic MOTM-310 uVCO now availble for dotcom/MU systems! Black powder panel finish, white silkscreen graphics, beautiful!

$25.00 - $299.00

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AI Synthesis

AI028 Voltage Controlled Matrix Mixer

From the manufacturer: The AI028 Voltage Controlled Matrix Mixer is a 6-input, 6-output Matrix Mixer, with 36 VCAs to control how much each input is fed to each output (0-5V). The Module can distribute audio and/or control voltage, and has a dedicated 5V...

$20.00 - $329.00

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Oakley Modular

Oakley Modular 5U VCO Controller MOTM

Oakley VCO Controller Issue 1 PCB + SOCK8 PCB As of 2026 synthCube will begin supporting and distributing Oakley Modular projects. As of 15 Febraury 2026 we have confirmed and updated the BOM and reduced the prices for the PCB set, kit and assembled...

$15.00 - $249.00

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Nonlinearcircuits (NLC)

NLC1054 Sloth Chaos (C68 Panel)

From the manufacturer: Nonlinearcircuits Sloth Chaos This is the original Sloth with aluminum Clarke68 panels. For the NLC version or the bare PCB, see here. For the triple C68 panel, see here. There are three kit options available- each offers a...

$20.00 - $65.00

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Nonlinearcircuits (NLC)

NLC1054 Sloth Chaos

From the manufacturer: Nonlinearcircuits Sloth Chaos This is the original Sloth Chaos PCB. Although the NLC panels read ‘Torpor’ the PCB can be built to use any of the three speed options. For other label options, see the C68 panel...

$9.00 - $65.00

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Nonlinearcircuits (NLC)

NLC1163 Neuron 4HP

From the manufacturer: 4HP Neuron Description/Usage This module is a 4HP version of the NLC 8HP Neuron & Difference Rectifier. The differences are half the panel real estate, SMD components, LEDs to indicate activity and one less input on the...

$14.00 - $150.00

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Nonlinearcircuits (NLC)

NLC1160 Dactrol

From the manufacturer: DACTROL Description/Usage 4hp This is a design by Tom Hirst (who also designed the NLC Snake Joke module). His description for the design is: “It's a vactrol-based multiplying-DAC (digital to analog converter). It basically...

$18.00 - $36.00

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