87 products
Quad attenuator and volume pedal to CV interface. Functions as a four-channel passive attenuator while also enabling foot pedal control of your modular synthesizer via volume or expression pedal inputs. Channel A can act as a voltage source with a maximum 9V output. Stereo jack inputs accept volume or expression pedals to generate CV; mono jack cables work for standard attenuation.
6 trigger input expander for the CV Trinity. For LFO and Automation modes, trigger inputs work as individual channel-independent reset inputs. For ADSR mode, they act as channel-independent re-trigger inputs.
Dual-channel bipolar DC motor driver module. CV inputs control speed and direction of each motor channel, with attenuators, a speed offset knob, and a directional offset knob per channel. Optical isolation between the CV and motor circuitry eliminates ground connections between the two systems.
A 4HP voltage utility module for attenuation, attenuversion, signal boosting, crossfading, and mixing. Two independent channels (A and B) each have a FADER input, ADD input, and output with LED polarity indication. When OUT A is unpatched it cascades into channel B, enabling 4-channel mixing. Three fader modes (Attenuvertor, Attenuator, Crossfader) and switchable 1×/2×/10× gain make it useful as a pre-amplifier and stereo line-to-Eurorack booster.
Dual voltage-controlled footswitch module with two independent channels. Each channel routes Signal In to FX Send and selects Signal Out between FX Return and Signal In based on switch state — enabling signal processor bypass, signal switching, or gate generation. Gate input inverts current switch state per channel. Supports both momentary and latch switch modes per channel. Footswitch inputs include LED indication for passive footswitches.
Combines envelope follower, comparator, and voltage-controlled switch. Two passively-connected envelope follower inputs with inverted, non-inverted, and full-wave rectifier outputs. Compressor CV output with LED. Selectable release time (Short/Mid/Long). Comparator with threshold control and CV input. Bi-directional non-buffered voltage-controlled switch.
A 2-channel USB lamp driver that converts audio, CV, or MIDI signals directly into light intensity. Creates visual accompaniment for modular synths, drum machines, and other gear. Features adjustable gain, decay, and signal inversion per channel.
A compact synchronization device that converts audio line-level signals into modular clock, trigger, and gate pulses. Bridges computers and hardware synthesizers by transforming standard audio outputs into 0–5V signals compatible with modular and semi-modular synthesizers. Compatible with Ableton Live and Bitwig Studio.
Expander module that adds clock OUT and reset IN/OUT connections to the Knit Rider sequencer. The clock output pulses each time a step on the Knit Rider changes (1 step equals 4 substeps). The reset socket functions as an output in master mode and an input in slave mode. Also includes a 3-way passive multiple with clock inverter (inversion threshold at 2.5V). Powered by the Knit Rider module via ribbon cable.
Dedicated dual-channel interface between drumpad performance and Eurorack modular synthesis. Fully analog core that converts drumpad signals into trigger and velocity CV outputs, with a low-drift sample-and-hold circuit for velocity generation. Dual audio outputs function as a modular pre-amp suitable for piezo pickups.
LOL is a discontinued compact 2HP passive three-channel mute module for Eurorack with latching push buttons and LED indicators. Each of the three independent channels has an input jack, a latching mute button with LED, and an output jack. Inputs are normalized between channels, allowing use as a switched signal splitter.
Multiple is a discontinued compact 2HP passive nine-jack signal splitter for Eurorack. All nine jacks ship internally connected; cutting internal wires reconfigures it as independent groups (e.g., 4+5 or 3+3+3). Skiff-friendly at 15mm depth. Handmade in Brno, Czech Republic.
Outsidify is an iOS app for exploring sonic worlds around you by manipulating sounds captured through your smartphone's microphone and speaker. Create feedback, manipulate resonances, use your mouth as a resonant filter, and capture impulse responses of objects around you.
Adds more CV inputs for enhanced control of nonlinear browsing through the steps of the Popcorn sequencer. Provides a gate input for minor/major quantizer selection, CV input for Gate Time, CV input for Slide Time, CV input for trigger A step jumping, and CV step address offset. An alternative mode offers 3 binary gate bits for step address selection.
Gate Outs Expander for the Popcorn sequencer. Adds individual gate output for every step of the Popcorn sequencer, plus a jump button — hold jump and press a step button to jump directly to that step.
Analog sensor calibration module that converts physical and environmental inputs into control voltage and gate outputs. Accommodates variable resistance sensors (light-dependent resistors, contact sensors) as well as voltage-output sensors (pulse sensors, accelerometers, piezo elements), with built-in pre-amplification, gain control with clipping indicator, adjustable voltage offset (positive/negative), AC/DC coupling options, and a threshold control for gate generation.
Two-channel Eurorack module designed to drive hobby 5V servo motors from CV signals. Each channel features optically isolated CV and motor circuitry, a trigger/gate input, a CV input with attenuator, and an onboard 5V regulator to power the motors. External motor power (9–15V, positive polarity) is required.
Skis is a discontinued 5HP dual decay envelope and VCA Eurorack module, predecessor to Skis II. Each of the two independent channels (A and B) generates a decay envelope with adjustable timing and routes it through a voltage-controlled amplifier. A CRUNCH switch activates a lo-fi MOSFET VCA circuit. A jumper selects between decay and release modes; an optional output filter can also be toggled.
Dual voltage controlled decay envelope module with integrated dual VCA. Each channel processes an input signal through an adjustable exponential decay envelope triggered by a gate or trigger signal, with normalized ENV OUT to VCA CV IN for streamlined percussive sound design. Features decay times from 8ms to 3 seconds, LED envelope indication, normalized triggers and outputs between channels, and solder jumpers for gate/release mode and tambourine bend customization.
Expansion module for the Bastl Instruments Solenoid module, adding 4 independent CV inputs (0–5V) that individually control the output pulse width on each solenoid channel. Requires the primary Solenoid module to function.
SPA is a discontinued Eurorack expander for the Bastl Instruments grandPA granular sampler, adding CV inputs for grain size, shift speed, start/end or attack/release, and crush on both channels A and B, plus a clock input to trigger grain shifts. Requires connection to grandPA via rear ribbon cable.
Utility module combining a buffered multiple with an inverter and a unity mixer. One main signal input feeds an inverted output and two buffered multiple outputs (low offset ~0.015%), plus a unity gain mixer with two inputs and one output. A bipolar LED provides signal visualization from approximately 2V.
Compact 5HP utility combining VCO, Comparator, and Sample & Hold with internal normalization, functioning as a voltage controllable analog downsampler. Inspired by the 1994 Distortotron machine. VCO triangle wave with high (15Hz–45kHz) and low (50s–50Hz) range, tracks ~5 octaves at 1V/oct. Mode switch: Sample & Hold vs Track & Hold.
Broken cable and bad contact emulator configured as 2×4-way passive multiples in 1HP. Wackel Kontakt (German: 'loose contact') introduces controlled glitchiness and signal interruption into Eurorack patches. Each of the eight jack positions can be individually calibrated for a different degree of contact degradation by physically manipulating a patch cable through the connector hole.
A patchable analog logic computer that sculpts sonic worlds ranging from data noise to melodic arpeggios. Functions as both a handheld standalone synthesizer and studio instrument with extensive CV control, synchronization with drum machines and sequencers, and use as an algorithmic pattern generator. Designed by Peter Edwards (Casper Electronics).
A 16HP patchable Eurorack hybrid-synthesis instrument reimagining the Kastle 2 Alchemist desktop device. Five synthesis modes (FILTER, FM, HYPERSINE, SUPERSAW, GLITCHNOISE), four oscillators, FM with feedback, ring modulation, stereo filter, and dual FX (delay + chorus/flanger/distortion). Macro controls TIMBRE, ENV, and PITCH SLIDE. Integrated pattern generator with user-programmable rhythms via web editor. TRS MIDI + USB-C. Open-source.
Compact patchable hybrid-synthesis instrument with MIDI. A portable, patchable synthesizer designed for discovering melodies and harmonies through patch-programmable sequencing across five synthesis modes.
A unique modular melody generator based on a quantized sine wave oscillator with a digital waveshaper. A melodic take on the beloved Kastle glitchbox, featuring an 8-octave NOTE knob, Timbre XOR waveshaper, CV-controllable decay envelope, and a stepped voltage generator.
A pocket-sized lo-fi mini modular synthesizer with headphone output. Powered by two ATtiny85 chips (reprogrammable via Arduino), it offers a complex oscillator with three synthesis modes, a voltage-controllable LFO, and a stepped waveform generator with 8 random or looping step patterns.
A pocket-sized semi-modular synthesizer powered by dual ATtiny 85 microcontrollers, featuring a complex oscillator with six synthesis modes, a voltage-controllable LFO, and a stepped waveform generator. Open-source and reprogrammable via Arduino.
Noise Square is a discontinued 5HP Eurorack noise and square wave generator. It provides two analog noise sources (white and pink) alongside four digitally-generated outputs: tunable METALLIC noise (six square oscillators at 808-inspired frequency ratios), tunable DIGITAL noise, a SQUARE wave, and a COW output combining two square waves at a fixed ratio for cowbell-style sounds. Two CV inputs (0–10V) independently control the digital sources.
A circuit development and performance interface designed to help you quickly build audiovisual instruments from scratch and experiment with them live. Developed in collaboration with Casper Electronics, featuring a breadboard workspace, built-in speaker, mixer, and onboard sensors.
A compact 8HP digital oscillator with powerful wave shaping applied to FM synthesis. Features three internal oscillators (Main, Octave, Ratio), phase modulation via external input, wave folding with two distinct flavors, and ring modulation. Assignable CTRL knob and CV, V/OCT with auto-calibration, optional built-in quantization, and firmware updates via micro USB. Free VCV Rack plugin available.
A semi-modular, fully analog light and sound synthesizer built around a strongly feedbacked system of dual triangle-core oscillators, a state-variable filter, and sample and hold. Six faders control the cross-modulation network, and a 25-point patchbay with three external jacks enables deep signal-path reconfiguration. Expressions range from chaotic pops and alien drones to heavy subtractive basslines.
A radical subtractive synthesizer combining modular analog circuitry with unconventional digital sequencing control, developed through a decade-long collaboration between Casper Electronics and Bastl Instruments.
€507
A universal musical instrument and modular groovebox built on the Atmega 328 microcontroller. Swappable software modules let it function as a synthesizer, drum machine, polyphonic synth, FM synth, sequencer, or MIDI controller. Multiple units can be chained together sharing power, audio, and MIDI. Open-source, DIY, hackable, and repairable.
VCV Pizza is a free compact FM and wave-shape oscillator module for VCV Rack featuring three internal oscillators (Main, Octave, and Ratio) with phase modulation and wave folding, plus an assignable CTRL knob with CV input. It is a software recreation of the Bastl Instruments Pizza hardware Eurorack oscillator module.
$0
BOB is a discontinued analog processing full Eurorack system by Bastl Instruments designed for live performance with a microphone stand mount and built-in Meanwell power supply. It includes nine modules — Quattro Figaro (quad VCA), Cinnamon (filter), Tromsø (downsampler), Dynamo (dynamics analyzer), Hendrikson ×2 (instrument interfaces), CV Trinity (modulation), Dup Dup (foot switch routing), and Clutch (attenuator/expression interface) — plus 12HP of expansion space. Hand-crafted in Brno, Czech Republic.
BOBEK is a discontinued analog processing full Eurorack system by Bastl Instruments, the compact sibling to BOB, designed for live performance. It includes five modules — Quattro Figaro (quad VCA), Cinnamon (filter), Tromsø (downsampler), Dynamo (dynamics analyzer), and Hendrikson (instrument interface) — plus 10HP of expansion space. Built-in Meanwell power supply (120/240V AC) with microphone stand insert. Hand-crafted in Brno, Czech Republic.
Juice Bus is a discontinued ultra-narrow Eurorack power busboard accommodating up to 20 modules via dedicated pin connectors, with an optional on-board 5V converter from +/-12V for digital modules. The board can be split into an 11-connector main and 9-connector secondary section. Dimensions: 410×30×18mm. Handmade in Brno, Czech Republic.
Long Skiff is a discontinued single-row 104HP Eurorack case by Bastl Instruments built from 10mm plywood with an integrated power supply. Depth is 80mm (approximately 40mm in the power supply area) and exterior dimensions are 550×150×100mm. Power supply: 100–240V AC input, +5V/5000mA, +12V/2800mA, -12V/500mA.
Marton Case is a discontinued Eurorack case with integrated power supply built from 10mm plywood. It provides two 72HP rows with 100mm depth (approximately 60mm in the power supply area). Exterior dimensions: 385×280×110mm. Power supply: 100–240V AC input, +5V/5000mA, +12V/2800mA, -12V/500mA.
Marton Skiff is a discontinued single-row 72HP Eurorack case by Bastl Instruments built from 10mm plywood with an integrated power supply. Depth is 100mm (approximately 60mm in the power supply area) and exterior dimensions are 385×150×110mm. Power supply: 100–240V AC input, +5V/5000mA, +12V/2800mA, -12V/500mA.
Rumburack 2.0 is a discontinued compact portable Eurorack full system by Bastl Instruments designed for live performance. It ships as a complete 11-module bundle (Tea Kick, Noise Square, Skis ×2, Cinnamon ×2, grandPa, Knit Rider + Exp, Popcorn, Tromsø, Quattro Figaro, ABC, Ciao!) in a carry case with an integrated Meanwell power supply supporting 100–240V AC. Fully Eurorack-compatible and hand-built in Brno, Czech Republic.
Rumburack Case is a discontinued Eurorack case with integrated power supply built from 10mm plywood. It provides 2×52HP of rack space with 80mm depth (approximately 40mm in the power supply area). Exterior dimensions: 280×280×90mm (300×300×150mm with cover). Weight: 2kg. Power supply: 100–240V AC input, +5V/5000mA, +12V/2800mA, -12V/500mA.
An experimental 16HP stereo sample player Eurorack module reimagining the Kastle 2 Wave Bard. Stores 89 seconds mono / 44 seconds stereo at 44kHz/16-bit with 8 samples per bank and up to 32 banks via web editor. Features user samples via web loader, pitch control (±2 octaves, quantized scales), built-in LFO, tempo generator with tap tempo, user-programmable rhythm patterns, resonant filter, stereo delay/chorus, TRS MIDI, and USB-C. Reversible panel (Wave Bard / FX Wizard).
grandPA is a discontinued dual granular sampler Eurorack module inspired by microGranny, featuring two independent sample channels with trigger inputs, a shared assignable CV input, and a 12-bit audio output. It reads from a front-accessible microSD card and allows per-channel adjustment of sample rate, crush, grain size, shift speed, attack, release, start, and end position.
An experimental, patchable stereo sample player designed for discovering rhythms and riffs through modulation. Pocket-sized and battery-powered with modular patching capabilities, built-in effects, a resonant filter, LFO, and pattern/rhythm generator.
Monophonic granular sampler in a small standalone body. The 2nd generation reads WAV samples from a microSD card and applies granular algorithms for lo-fi sound manipulation.
A lo-fi granular sampling instrument designed for hands-on sound manipulation, featuring a black PCB case with improved tactile controls. Load samples via microSD card or record live through a built-in microphone or line input.
Six-voice trigger/gate sequencer for Eurorack with a hierarchical step editing architecture: 4 bars per pattern, 16 steps per bar, 4 sub-steps per step — 256 steps per pattern total, with 64 patterns available. Each voice is independently configurable as trigger or gate mode. Features real-time step editing with bar navigation, tap-based sequence recording with quantization, individual voice muting, a jump function for step repetition, active step control for per-voice step counts, copy/paste/clear, and undo. Accepts external clock input with selectable ratio and supports tap tempo. MicroSD card storage is rear-accessible.
A 5HP three-coordinate probabilistic pattern navigator that generates evolving looping trigger patterns. Each coordinate travels through a 32-step probability field at its own pace, and three linear faders steer direction of travel. Three independent trigger outputs produce distinct rhythmic characters. Clock and reset inputs, three CV inputs for coordinate modulation. Arduino-reprogrammable, open-source, skiff-friendly.
Little Nerd is a discontinued compact 6HP clock, trigger, and gate processor for Eurorack with two inputs and five programmable outputs. Seven selectable modes include Delayed Divider, Trigger to Gate/Flop Divider, Multiplier, Trigger Repeater, Euclidean Sequencer, Clock Oscillator, and Probability/Groove. Arduino-compatible via FTDI connector for custom firmware.
Compact, musical sequencer/quantizer/arpeggiator. Embraces the idea of making a selection of 8 notes that can be browsed in many different ways. Features CV output with selectable range (1, 2, or 5 octaves), multiple quantizer modes (chromatic, diatonic, pentatonic, blues scales, and chord modes), gate output with adjustable gate time, dual trigger inputs for step navigation, slide functionality, and expandability via Popcorn CV Exp and Popcorn Gate Exp modules.
VCV Kompas is a free probability trigger generator module for VCV Rack with three-coordinate probabilistic pattern navigation across three 32-step pattern generators, generating new looping patterns based on direction selection with dedicated trigger outputs per coordinate. It is a software recreation of the Bastl Instruments Kompas hardware Eurorack sequencer.
$0
An 8HP drum voice and sound design tool built on the Bastl Pizza platform with two layers: a noise source (white, clap, bit, metallic modes with LP/HP filter) and a dual oscillator tone generator (FM, FM2, dual, ring modulation). Crossfader with envelope control blends the layers. Pitch envelope, FM envelope, and transient shaping. Clip/distortion section: soft clipping with bass boost or hard clipping. Per-input sample-and-hold on all CV inputs. Assignable CTRL knob with CV, V/OCT with calibration. Firmware updates via micro USB.
A pocket-sized patchable mini modular synthesizer specializing in algorithmic industrial glitchy drum synthesis, featuring 8 drum synthesis styles with a unique dynamic acceleration charged envelope.
Analog drum circuit based on enhanced twin T resonant structure simulating a virtual electronic membrane. Tune with CV and attenuator, Resonance with range switch (prevents self-oscillation in low range), Click tone control, trimmer for resonance range. Can function as drum generator or experimental oscillator.
VCV Crust is a free drum voice synthesizer module for VCV Rack combining a noise source and dual oscillator tone generator with pitch envelopes, FM synthesis, transient shaping, and hard-clipping for percussion and beyond. It is a software recreation of the Bastl Instruments Crust hardware Eurorack drum module.
$0
Simple six-channel signal mixer designed for audio signals that can be modified to mix control voltage (CV) signals instead. Features flexible routing with normalization options — three solder jumpers enable normalization of A→D, B→E, and C→F pairings, and the A+B+C output mix feeds into D+E+F when that output is unused. Suitable for mono, stereo, or CV mixing applications.
Bestie is a compact 5-channel portable stereo mixer with built-in saturation and distortion. Each channel has a 3.5mm stereo input, individual mute switch with LED indicator, and up to 20 dB of boost through low-noise preamps with overdrive character.
€206
A 5HP Eurorack stereo mixer with preamp optimized for hybrid setups. Channels A and B are DC-coupled Eurorack-level inputs (×2/+6dB). Channels C and D are AC-coupled line-level inputs (×10/+20dB) accepting stereo TRS or dual mono. All four channels sum to a stereo output with soft Zener clipping. Chainable via back-panel jumpers.
The Dude is a portable, battery-operated 5-channel monophonic audio mixer designed for mobile music-making. Each channel features up to +20dB gain and a dedicated mute button. It supports dual mono output for headphone driving and can function as a feedback tone generator by routing output back to input through passive EQ circuits.
An 11HP quad VCA mixer with cascading submix architecture, clickless muting, and two integrated envelope follower types. Four channels each have audio in, CV input with attenuverter, mute switch with LED, and individual output. Level faders with +6dB boost. A sidechain envelope follower (three response curves) tracks an external signal and can modulate all four VCAs simultaneously. A spectral follower switches between treble, mid, and bass focus, outputting CV. Daisy-chainable. DC-coupled channel I/O; AC-coupled mix output.
Guitar/instrument amplifier and interface for external effects processors with CV-controllable crossfader between output signal and return from effects chain. Buffered output level control with clipping LEDs, input gain adjustment with modular level indication (5V peak-to-peak). 6.3mm Neutrik connectors.
Four-channel voltage-controlled amplifier with individual CV inverters per channel and mixed output combinations. Each channel provides signal input, signal output, CV input with attenuator knob, and an inverted CV output. Enables signal amplification with gain linear to the control voltage, plus panning and crossfading capabilities through internal routing via connector switches. Mixed outputs include sum and inverted-sum combinations across channel pairs. Maximum gain slightly above 2x with non-linear CV response above 6 volts.
A flexible 8HP stereo space delay module built on the Bastl Pizza platform. Combines clean digital delay and lo-fi processing with a Space section for chorus, flanger, vibrato, pitch shifting, reverb, and stereo widening. Includes a Freeze function for micro-looping, an assignable CTRL knob with CV input, and firmware updates via micro USB. Free VCV Rack plugin available.
Thyme+ is a digital tape delay machine and multi-effect processor that uses the metaphor of an analog tape delay with adjustable tape speed and multiple read head positions.
VCV Basil is a free stereo delay module for VCV Rack offering clean delay and lo-fi flavors with a Space section for exploring chorus, flanging, vibrato, pitch shifting, reverb, and stereo widening through modulation of the delay buffer. It is a software recreation of the Bastl Instruments Basil hardware Eurorack module.
$0
A 5HP voltage-controlled state variable filter with a unique character. Voltage-controlled cutoff with CV attenuator and a separate V/OCT input. Audio input with gain control and a drive switch for overdrive. Two character switches alter the resonance response and self-oscillation waveforms. Three simultaneous outputs: lowpass (12dB/oct), bandpass (6dB/oct), and highpass (12dB/oct). Self-oscillates at maximum resonance. Available with aluminum or oak wood panel. Hand-assembled in Brno, Czech Republic.
An 8HP stereo or dual peak filter module with a unique lowpass/highpass transition control. Two parallel 12dB/oct state variable filter cores can be operated in stereo sync, set apart for stereo effects, or chained to form a 24dB filter. The Beyond output delivers the spectral difference of the two cores (twin peak / formant effect). Integrated envelope follower with three selectable decay settings, output stereo VCA with CV pan/detune control, input gain up to 5x, V/OCT with front-panel scaling trimmer. Collaboration between Václav Pelousek and Peter Edwards (Casperelectronics). Named after the 1963 Czech sci-fi film Ikarie XB-1.
Compact triple passive filter with fixed cutoff frequencies for highpass and lowpass stages. Features three highpass 2-pole filters (cutoffs ~7kHz, ~3.5kHz, ~220Hz) and three lowpass 1-pole filters (cutoffs ~1.5kHz, ~4.1kHz, ~880Hz). The passive design requires no power connection but produces signal attenuation. Can clean up a final mix and make room for each sound, or filter noise in drum synthesis. When signals pass through both HP and LP stages, they create bandpass filtering.
A 16HP stereo multi-effects Eurorack module with MIDI, reimagining the Kastle 2 FX Wizard desktop device. Nine stereo effect modes across three families: Delay FX (stereo delay up to 1.15s, flanger, freezer), Amplitude FX (autopanner, crusher, slicer), and Pitch-Shifting FX (pitcher, replayer, shifter). Extensive CV modulation matrix, TRS MIDI input, USB-C for USB MIDI and firmware updates. Reversible panel (FX Wizard / Wave Bard). Open-source.
A compact patchable stereo multi-effects unit with USB MIDI, featuring nine distinct effect modes with extensive modulation capabilities including a built-in LFO, pattern generator, envelope follower, and tempo generator.
€160
A sequenceable digital tape machine and audio effects processor featuring modulation sources called Robots. Explore time-based effects including delay, phaser, reverb, chorus, pitch shifter, multi-tap delay, tape delay, tremolo, vibrato, and compressor in stereo. Each of the 9 parameters has a dedicated Robot modulation source, and a 32-step sequencer with 4 patterns allows for dynamic parameter automation.
Compact 5HP Eurorack output module featuring four high-quality line outputs for recording and live performance. Provides two balanced line outputs (left and right channels), one stereo line output, and one headphone output with a channel selector switch. Includes per-channel volume controls, line-level clipping indicators, internal normalization for mono-to-stereo conversion, and a front panel switch to mix channel A into channel B. Available with aluminum or oak wood front panel. Discontinued — superseded by CIAO!!
A 5HP performance-oriented output module built with high-quality, low-noise components. Converts modular-level signals to line level across two stereo channels. Channel A has balanced 1/4-inch jack outputs; Channel B has a 3.5mm stereo jack output. A dedicated headphone amplifier (8–250Ω) with channel-select switch enables monitoring of either channel. Each channel has a level control with signal and clip LEDs. A MIX switch blends Channel B into Channel A. Back-panel jumper customizes normalization.
A 7HP flexible wave shaping module combining two distinct circuits: the Wave Driver (I), an overdrive circuit with one folding stage and SOFT/MID/HARD drive switch, and the Wave Folder (II), a 4-stage Serge-design wave folder. A voltage-controlled crossfader blends between both circuits' outputs. A SYMMETRY control with CV input adds a voltage offset before processing for asymmetric wave folding. FBK CV input controls internal feedback routing. Handmade in Brno, Czech Republic.
Fully analog wave folding mixer and signal disruptor. Features a 3-input mixer with dedicated faders, 2 bipolar VCAs with attenuverting CV control, a wavefolding processor, square shaper, pulse width modulator, and signal clipper with feedback capability. All inputs and the mix output are DC coupled, making it suitable for both audio and CV processing.
Six-channel modulation module. Each channel supports three modes: Automation (32-step sequencer), LFO (with waveshaping, audio-rate capable), or ADSR envelope generator. Variable step counts, independent clocking, LFO sync, ADSR with linear/exponential modes and looping. Compatible with CV Trinity Expander for reset/re-trigger inputs. Requires +5V bus.
A 6-channel compact modulation hub for Eurorack. Each independent channel operates as an LFO, envelope generator, or CV knob recorder with automatable parameters and recordable trigger sequences. Features unipolar/bipolar output modes, an algorithmic trigger fill generator with 6 algorithms, 6 preset banks, clock sync (35–420 BPM), and USB-C firmware updates.
A 13HP voltage-controlled audio feedback module and high-energy sound processor inspired by no-input mixer techniques. Features an input VCA with gain and soft clipping, hyper drive switch, 2-band voltage-controlled EQ (bass and treble with overdrive), and an envelope follower (0–5V, normalized to feedback and crossfader CVs). External feedback loop via FBK OUT/FBK IN jacks, output phase switch, and FBK VCA switch with high-frequency warning LED. Voltage-controlled crossfader blends input and feedback path. Creates self-generating feedback loops, complex evolving textures, and signal ducking.
A unique desktop instrument that combines microphones, touch sensors, and an accelerometer, with a user interface inspired by the traditional kalimba.
€550
An experimental MIDI looper that records and loops MIDI control information — notes, dynamics, and parameters — similarly to how audio loopers process sound.
A polyphonic MIDI to CV interface with creative voice allocation and automatic tuning via oscillator feedback. Four channels of CV and gate output with six layout modes: 4-voice polyphony, 3+1 voice, velocity, quantizer, 8 gates, and 8 CC channels. Each channel has a LISTEN input for automatic tuning calibration. TRANSPOSE and PORTAMENTO CV inputs, WINDOW and UPDATE jacks for creative note allocation. Full MIDI support: Note On/Off, CC, Velocity, Pitch Bend, Clock, Aftertouch. Microtuning (µTune) for per-semitone scale editing within an octave.
An advanced MIDI controller with 60 independently customizable potentiometers, designed for use with the Sonic Potion LXR drum machine but compatible with any MIDI equipment. Supports standard CC, NRPN, and Yamaha DX7 SysEx protocols. Arduino-based and available as a DIY kit.
Quad trigger-to-solenoid motor driver module for Eurorack. Drives 4 solenoid motors using voltage directly from the power supply, physically striking objects to create percussive sounds. CV circuitry and motor driving circuitry are optically isolated with no ground connection between them. Each channel has a dedicated trigger input and a shared output pulse width knob. Requires an external power supply for the motors. Compatible with the Solenoid Expander module for individual CV velocity control per channel.
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