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Introducing Hapax
Introducing Hapax.
Professional standalone sequencer
Genuine centerpiece of a setup, it offers every tool needed to compose songs in the studio and perform them on stage. From vintage to modern synths, from modular systems to your favorite DAW, Hapax can sequence and synchronize all your gear, while bringing you carefully crafted tools, designed for maximizing creativity.

1080€ — In stock, order now!
midi powerhouse
The midi powerhouse.
Up to a million notes and events
16 tracks per project, 16 patterns per track.
Thanks to its dual–processor architecture, Hapax can record and transform tremendous amounts of data in no time, without a hitch.
Express yourself
Express yourself.
MPE compatibility
Hapax is the first hardware sequencer that fully supports MIDI Polyphonic Expression. Record the finest gestures, slides and articulations of your playing, without compromising quality.
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Around the clock performance.
Dual–project architecture

Hapax can handle two separate and independent projects, that can be played simultaneously. This lets you compose or load an entire project while the first one is already playing, enabling endless sets and seamless transitions.
Dawless is more.
Hapax offers broad connectivity options for perfect integration in any setup.
connectivity drawing
Adaptive workflow.
Several ways to write music
Writing a melody: use a polyphonic or MPE track and take advantage of the advanced step sequencer to quickly lay down notes or edit your live recording.

Composing a beat: control up to 8 different instruments with a single track. The drum sequencer is tailored for very easy rhythm writing and jamming.
Real–time midi effects.
Bring your synths to life
Hapax embeds multiple real–time, polyphonic, non-destructive midi effects, as well as project–wide assignable LFOs. Each parameter of these effects can be automated in the dedicated mode, and processed in the modMatrix, which provides even more ways of routing and modulating.
Powerful composition tools.
AlgorithmsPowerful tools for offline note transformation and generation, right at your fingertips. Harmonically invert your motive, generate a controlled–random counter–melody, slowly ramp up the velocities, emphasize every fifth 8th note...
Chord mode
Harmony, simplifiedFor fast and intuitive chord building, the chord live mode brings harmonic capabilities to anyone, with or without deep theoretical knowledge. With its colorful interface, the chord mode displays a synesthetic melding of hearing, vision and touch.
Hi–res recording
Hi–res recordingHit the red button, and record from the encoders and 128 pads of Hapax, external midi instruments (included MPE controllers) or any incoming analog signal, at a high resolution of 192 ppqn. Looper style recording, count–down and metronome options, punch–in mode, you'll certainly find the options that best suit your workflow.
Fluid editing
Fluid editingUsing hardware should never get in the way of creative flow. The undo/redo button lets you go back in time as needed, thanks to its extensive history. Additionally, the snapshot function enables you to save the state of a pattern and recall it with a single press. Together with dedicated copy, paste and delete buttons, Hapax offers a complete toolbox for the prompt editing of your tracks.
Time elasticity
Time elasticityEach track has an elasticity value which changes its playback speed, expressed in percentage of BPM. Quickly double or halve the speed of a track, or create slightly shifted tracks that will slowly drift out of phase with each other.
Four modes to explore.

Live mode

Isomorphic Keyboard

Live mode
Think in shapes to play your favorite chords.
Live mode

Chord Generator

Chord mode
Browse through a large chord bank & play with algorithmic modifiers.
Live mode

Live Drumming

drum live mode
Full velocity range at your fingertips.
Step mode

Step by Step

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piano roll r
Program your melodies and rhythms instantly on the 128 pads matrix.
Step mode


piano roll r
Slightly move the note around its central step position to create subtle grooves.
Step mode

Math & Chance

piano roll r
piano roll r
Create lively, ever-changing & complex patterns in a flash with conditionals trigs and probabilities.
Step mode


piano roll r
Energize your beats with note repeat.
Step mode

Loop Points

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Set in real-time where your pattern begins and ends.
Step mode

Project Scale

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When enabled, only in-scale notes can be added. No more 'wrong' notes.
Pattern mode

Independent Patterns

drum live mode
Launch different patterns for each track, for improved performance flexibility.
Pattern mode

Synchronized Pattern Changes

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Schedule pattern changes for smooth transitions.
Pattern mode

Run Modes

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Each pattern can be played forward, in reverse, in ping-pong, or randomly.
Pattern mode

Follow actions

piano roll r
Automate pattern triggering or add some randomness to your pattern launches.
Pattern mode


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Per-pattern length, from a 16th to 32 bars, allows for long jam recordings and polymetric effects.
Pattern mode


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Play or program notes on the TRSP leader track to transpose other tracks.
Pattern mode


piano roll r
Save sections (arrangements of patterns) and launch them in sync.
Pattern mode


Song animation
Arrange your sections in a chain to create complex songs.
Pattern mode

Program Changes

Program change animation
Per-pattern program change, for easy preset-switching during your live performances.
Automation mode

Automate Everything

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Per-pattern automation (FX parameters, CV outputs, midi messages (CC, pitchbend, aftertouch, NRPN, CC pair, program changes, )...
Automation mode


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Draw envelopes with a few points, or program discrete events.
Automation mode

Recording Editing

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Edit or fine tune a previously recorded automation with ease.
Automation mode

CV In Recording

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Bridge the gap between analog and digital, with the 16 bit CV inputs.
Automation mode

Virtually unlimited automation per track

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Simple by design.
Trimmed to perfection
We designed Hapax from the ground up, deconstructing everything we knew about sequencing. We aimed for a high-end product, with dual arm processors for computation power and a rugged yet minimalist housing.

As music-making should remain an enjoyable process, we favored dedicated buttons over key combinations and imagined a clear-cut interface as well as a simple architecture. We have striven to minimize the importance of screens for live performing, but the dual grayscale display helps keeping track of things in a studio context.

Evolving firmware.
The Hapax Operating System has been written with extra care, prioritizing stable and fast operations. New features and parameters will be added regularly. Looking for the latest HapaxOS for your device? Follow this link.
hapaxOS 2.0 new features
Red Means Recording – Review
Loopop – Review
Captain Pikant – Analyzing Daft Punk's Beats
MrTuna – Live Looping
Patchwerks – Hapax In The Studio
Bleeps and Boops – Recreating Café Del Mar
Red Means Recording – The Buddha Machine Sessions
🇫🇷 Arkitek – Redonnez vie à vos synthés
Klaus Obermaier – Complex Tuplets, Dawless Eurorack
Signal Sounds – Secrets of the Hapax
Model name
128 RGB MATRIX pads
52 clic pads
9 sturdy clickable encoders
2 OLED greyscale displays
SD card for saving projects
CPU: dual ARM design
RAM: 32MiB
Housing: machined aluminium 2mm
Housing (back): unibody ABS
Dual Sequencer (2 Projects)
16 tracks per project
16 patterns per track
2× midi in (DIN + TRS type A)
2× CV in [-5V to +5V] (16bit)
Stereo pedal (footswitch)
4× midi out (3× DIN + TRS)
4× CV out [-5V to +5V] (16bit)
4× GATE out [+5V]
Bidirectional I/O
USB Host (link a controller)
USB Device (link a computer)
Power supply
15V, 1.2A, 18W (included)
358 × 206 × 58 mm = 14.1 x 8.1 x 2.3 in
1.855 kg = 2.2 lb
Main Features
Dual Project: 16–track × 16–pattern + 16–track × 16–pattern
Polyrhythms/Polymeters/Phasing capabilities
Track run–modes: reverse, pingpong, random
Track length: 1 step to 32 bars
Very low jitter and latency
Live modes: scales, chords generator & drum
Real–time global scale on each project
Live recording with looper & metronome
High recording resolution: 192ppqn
Record midi velocity of note ON and note OFF
Transpose track / Match Chord track
Real–time midi effects, up to 7 per tracks (Arpeggiator, Chance, Euclid, Harmonizer, Randomizer, Scale, Swing...)
Multitrack recording
Undo/redo and Snapshot
Copy/paste for almost everything
Instruments definitions
Advanced modMatrix
Assign 8–pot mode
Easy import/export of MIDI files
Latency compensation
Audio synchronization from a DAW possible (sample-rate precision)
Extended settings for improving your workflow
Step modes: polyphony, drums & MPE
Algorithmic composition tools
Quantizer with strength
Loop points on each track
Conditional trigs + roll + microtime + chance possible on each note
Automation (CC, Pitchbend, Aftertouch, Program Change, NRPN, CC pair, CV) editor with interpolator
Advanced pattern mode
Song editor mode, based on sections (groups of patterns)
Synchronized project load and launch