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Kilpatrick Audio strives to create unique and interesting musical equipment designed to sound great, be fun to use, and to inspire musical ideas in the exploration of new sounds. In the words of designer Andrew Kilpatrick:

"I create devices that are sonically and visually pleasing and fun to use. Every project that I pursue is genuinely something that inspires me and keeps me up at night thinking about all the possibilies that it brings to the studio or stage! I hope that our products can inspire you and add a new dimension to your music-making journey!"
- Andrew Kilpatrick

Buy online directly from Kilpatrick Audio

The Kilpatrick Format synthesizers and some other products are available to order directly from us. Please ask us if you have any questions regarding availability of a product. Many products are also carried through our amazing network of dealers worldwide.

Buy from one of our Authorized Dealers

Kilpatrick Audio sells its own products world-wide through respected dealers. Please contact an authorized dealer near you. Also do let us know if you have any questions and we will do our best to help you.

Live Performance Devices


Multiband Compressor

Compact and powerful stereo multiband compression, TORQUE packs an incredible amount of functionality in a small rugged unit. Perfect for live performance on stage or in the studio, TORQUE offers many compression engines from warm and vintage to tight and precise and was designed from the ground up for electronic musicians and producers.

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Stereo Reverb

Redefining the small desktop effects market, Kilpatrick Audio offers studio-grade reverb algorithms and easy to use controls in a small rugged unit. Finally a desktop reverb unit designed specifically for electronic musicians and producers. Offering rack-mount quality in a portable package REDOX will become your go-to hardware reverb.

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Sequencer and Performance System

Building upon the success of the K4815 Pattern Generator, CARBON takes pattern-based sequencing to a whole new level. Supporting polyphony, multiple tracks, editing and scene-based operation, CARBON offers a whole new approach to composing and performing.

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Patchable Analog Synthesizer

The patchable modular synth experience is now available in a compact, affordable package. With the excitement of a full-sized modular synthesizer packed into a fun table-top unit, PHENOL includes tons of amazing features. But the best part is that it sounds fantastic!

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Eurorack Modular Synthesizer

K6100 // Panning VCA

Dual High Quality Stereo VCA / Panner

Small and powerful, the K6100 Panning VCA offers two flexible VCAs in a stylish package. Use it as a panner, a stereo VCA, or two mono VCAs.

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K6101 // Dual Envelope

Dual Envelope Generator / Oscillator inspired by PHENOL

By popular demand you can now get the unique power of the PHENOL envelope in a Eurorack module!

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K3021 // Master VCO

Eurorack Triangle Core VCO with Waveshapers

Treat yourself to one of the best analog oscillators available! Based on the success and sound of the K3020 Dual VCO, the K3021 Master VCO packs the same sound into a smaller and more affordable package. Completely redesigned from the ground up, the K3021 Master VCO is ready to amaze you.

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K6501 // PHILTER

Eurorack Multi-mode Filter Inspired by PHENOL

Yes, we have done it! The K6501 PHILTER captures the incredible sound of the PHENOL filter in a Eurorack module! Enjoy the fat, nasty (in a good way) sound of the PHENOL filters in a compact module that is sure to always be in your signal path.

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K4815 // Pattern Generator

Eurorack CV and MIDI Pattern Generator

A unique and exciting first offering from Kilpatrick Audio into the modular synthesizer world. The K4815 explores rhythmic and melodic creation in a whole new way.

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K3020 // Dual VCO

Eurorack Dual Voltage Controlled Oscillator

Explore modular synthesis like never before with the K3020 Dual VCO. Pure analog sound with some important digital conveniences, the K3020 is ready to take your modular system to an entirely new level.

Last batch coming in 2017!

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KMIDI // MIDI Interface

MIDI Breakout for K4815 and K2579

Enjoy the power of MIDI with your K4815 or K2579 module by adding MIDI ports with the KMIDI.

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KONVERTER // +5V Supply

High-efficiency +12V to +5V Power Module

Use modules that require +5V power in your +12/-12V only case with the addition of a KONVERTER +5V Supply from Kilpatrick Audio.

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Kilpatrick Format Modular Synthesizer

The Kilpatrick Format modular system represents a huge step forward in the design of modular synths. With larger panels, a powered chassis that requires no internal cables, and 15V power supply rails with separate analog and digital grounds, the Kilpatrick Format is designed for ultimate performance! With an open specification that any builder is free to use without royalty, the Kilpatrick Format is a natural choice for those looking for a high-end modular experience.

All Kilpatrick Format products are built by hand in small quantities and will be available indefinitely as long as parts can be obtained.

Kilpatrick Format Synthesizer

Complete Modular Synthesizer Systems from Kilpatrick Audio

The Kilpatrick Format Synthesizer is a completely new format for modular synthesis designed to offer the best combination of features, ease of use, and performance. But most of all the Kilpatrick system is fun! Whether you want experimental sound creation or a more tonal synthesis experience, check out the Kilpatrick format.

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K1 // Mixer Interface

Kilpatrick Format Mixer and MIDI Interface

Combining a compact and capable audio mixer with a MIDI to CV converter the K1 Mixer Interface acts as the central hub of most systems. The AUX send and stereo inputs provide a perfect effect loop for use with the K3 Digital Effects module. Both headphones and line outs are provided with independent volume controls.

A built-in MIDI to CV converter offers many different modes of operation, allowing a MIDI keyboard or computer to control the system.

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K2 // Pitch Oscillator

Kilpatrick Format Analog VCO

A real analog VCO based around a traditional sawtooth core, the K2 Pitch Oscillator generates multiple basic waveforms simultaneously. The PWM section includes both a standard PWM mode and a unique multi-pulse mode for making new timbres. The wave blending section allows voltage-controlled blending between different waveform combinations.

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K3 // Digital Effects

Kilpatrick Format Digital Effects Processor

The K3 Digital Effects module offers two independent digital effects processors in a single module. The REVERB / DELAY section produces high quality stereo reverb and delay effects processed at 24 bit. The ITTI BITTI section produces lo-fi effects to either audio or control voltage signals processed at 12 bit. Effects such as digital multiplication, (ring mod) sample and hold, wave folding and digital distortion are possible.

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K4 // Envelope Modulator

Kilpatrick Format Envelope Generator / LFO

The K4 Envelope Modulator offers four complete channels of modulation goodness in a single module. The first two channels generate envelopes in one of three modes, with voltage control over the up and down times of the envelope. The other two channels generate LFO signals with voltage controlled speed and a wide range gain control. The LFOs can be synced together and produce outputs with configurable phase offsets between them.

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K5 // Filter Amp

Kilpatrick Format Quad Filter / VCA

The K5 Filter Amp is a quad voltage-controlled amplifier (VCA) and low-pass filter (LFP) in a single module. Manual and voltage control of the output level and filter cutoff frequency are provided on each channel. Adjustable filter resonance adds extreme peaking around the cutoff frequency for ultra-juicy bass sounds or pitched percussive sounds.

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K6 // Voltage Processor

Kilpatrick Format Voltage Utility Module

The K6 Voltage Processor is a workhorse utility module. It has audio buffers to convert audio signals to and from the outside world. Add to that four mixers each with dual buffered inputs, gain control, (0-2x gain) normal and inverted outputs and a signal level/polarity LED. It also has two more mixers each with dual buffered inputs and a normal output plus a level LED and a fixed gain of 1x. Finally two buffered pots that can make -5V to +5V for creating manual control voltages, plus a signal switch / swapper which can be either manual or voltage controlled.

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K7 // Entropy Sequencer

Kilpatrick Format Random Sequencer and Analog Noise Source

The K7 Entropy Sequencer combines some of the most useful functions of previous sequencer designs into a fun module that is sure to inspire new musical ideas. Like the K4815 Pattern Generator the K7 can create unexpected results. But it has some new and different features that set it apart from any previous attempt. Combined with a true analog noise source that can be used by itself, the K7 is a versitile source of noise, programmed or random patterns, random pulses and fluctuating voltages.

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K9 // Dynamic Filter

Kilpatrick Format Multi-mode Filter and Envelope Follower

The K9 Dynamic Filter brings a great, clean and precise filter to the Kilpatrick Format. Like other modules in the system K9 goes above and beyond normal expectations by offering a wealth of control options such as calibrated V/octave input for easy key tracking, as well as voltage controlled resonance and a built-in VCA channel. But K9 also offers a powerful envelope follower section as well which can track audio signals and make control voltage signals.

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K10 // Dual Envelope

Kilpatrick Format Dual Envelope Generator

The K10 Dual Envelope offers two identical ADSR envelope generators with a wealth of voltage control possibility. In its simplest form the K10 provides a typical ADSR envelope generator. But with the addition of a retrigger input and five real-time voltage controlled per section, the dynamic possibilities of the module are incredible. The peak input allows for dynamic control of the output envelope size, and the shape control provides dramatic control over the shape of the A, D and R slopes. From a sharp exponential shape to a very rounded log shape and everything in between.

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Limited Edition and Accessories

K4816 // Pattern Generator

Buchla-format CV and MIDI Pattern Generator

Building on the popular K4815 Pattern Generator, the K4816 offers Buchla users this incredible module with a built-in MIDI interface, CV control inputs and many new features.

Limited edition - sold out.

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KPatternEdit // Pattern Generator Editor

Editor software for K4815 and K4816 Modules

Designed to take your Pattern Generator module to the next level, KPatternEdit software lets you create new ingredients for the K4815 or K4816 Pattern Generators. You can design and upload new patterns, motions and scales instantly over MIDI.

Free download for Windows and OS X.

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USB power supply for PHENOL

Enjoy the great outdoors, but keep patching with PHENOLgo! This handy accessory will let you power your PHENOL from a USB battery bank or solar panel. Plug in some headphones and jam anywhere!

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Legacy Product Museum

K1600 // MIDI Converter

Eurorack MIDI Converter

Unlock the power of your modular with the K1600 MIDI Converter from Kilpatrick Audio. Expands other Kilpatrick Audio MIDI-compatible modules, and offers CV, gate, trigger and clock outputs. (10 in total) A unique, compact and flexible module that will be at home in any system.

No longer available.

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K2579 // Step Sequencer

Eurorack MIDI / Analog Step Sequencer

Edit and perform with sequences in a totally new way with the compact and powerful K2579 Step Sequencer. This two-part sequencer packs a lot of power into a small 14HP module.

No longer available.

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KBOX // Enclosure

Eurorack 3U Enclosure with K1205 Power Supply

Start building your modular synthesizer with the KBOX Enclosure / Power Supply from Kilpatrick Audio. A high-quality enclosure and power supply system, custom-designed for modular synthesizer use.

No longer available.

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Ribbon Controller

Presenting the revolutionary Striptease™ ribbon controller. Bringing a new level of expression to guitar and synth players, Striptease™ allows real-time control of effect parameters at the touch of a finger.

No longer available.

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Lush Puppy

Stereo Reverb with Delay

The Lush Puppy combines two incredible hand-tuned reverb algorithms with a slap-back delay effect for a flexible and great sounding pedal for any playing style.

No longer available.

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Echo Centric

Echo with Stereo Syncopation

The Echo Centric is a warm sounding echo pedal with up to one second of delay time and adjustable feedback. The switchable syncopation mode adds additional softer echos to create swinging or straight-ahead rhythms easily.

No longer available.

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Vibro Man

Touch-sensitive Tremolo, Vibrato and Vibrating Filter

Simply the best tremolo and vibrato pedal available, the Vibro Man can modulate your socks off, offering both tremolo and vibrato effects which can be used together. But it also has a modulating bandpass filter that will blow your mind! All effects can be set into a touch-sensitive mode that changes depth based on your playing style.

No longer available.

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Chora Lush

Rich Chorus with Reverb

The perfect companion for acoustic guitars with pickups, the Chora Lush offers two different chorus sounds with adjustable depth and speed. But there is far more than a chorus inside... the Lush Puppy-inspired reverb can be adjusted to suit your need. The chorus can be turned on and off independently of the reverb.

No longer available.

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Kill Switch

Auto-fire Tremolo and Death-Ray Generator

More than just a guitar effect, the Kill Switch can make its own sounds. Get ready to cause complete havoc!

No longer available.

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© Copyright 2018 Kilpatrick Audio / QP925 Trading Corp.