The EssenceFM is a very powerful FM synthesizer combined with a modern and easy to use interface, offering studio-quality specs. Creating FM sounds has never been so fun and easy!

  • Touch screen controlled: connect the operators together as you like, draw the envelopes and waveforms directly on screen
  • Use the pots to fine-tune parameters and control sounds in real-time
  • Enjoy the huge polyphony (300 voices) to create rich layered sounds or play way too many notes!
  • Enjoy the built-in effects processor, the multitimbrality and the 3328 internal sound slots to create whole tracks with the EssenceFM

EssenceFM front panel view
EssenceFM front panel view
EssenceFM front panel view
  • Eight balanced audio outputs and multiple MIDI inputs (DIN, USB & Ethernet) provide flexibility to your setup
  • Use the EssenceFM racked or laid on your desktop, tilted via the included support bars
  • We built it with quality in mind ! 24-bit DAC, fully isolated analog circuitry, steel and aluminium case, ALPS pots, Bourns rotary encoders, Kailh backlit mechanical switches...

The EssenceFM contains approximately 500 voices and 400 patch presets out of the box.
But we strongly encourage creating your owns!

This an example of how the EssenceFM may integrate in a studio:

EssenceFM front panel view


Design your own algorithms by creating links between operators. Screenshot of an algorithm made of different connected operators
Draw waveforms with the touch screen or import them from wave files.
The EssenceFM has 24 fully customizeable waveforms.
Screenshot of the waveform drawing interface
Make complex envelopes easily by moving the points and defining their attributes (sustain, loop start, loop end...) Screenshot of the graphical enveloppe for volume
Create layers and splits with advanced options like round robin and exclusion groups Screenshot of the patch page
Create rhythmic patterns and evolving sounds with the Voice Sequencer. Screenshot of the tuning page
Design exotic scales, early temperaments and microtunings. Screenshot of the tuning page
Use the modulation matrix to shape the sound in every possible way. Screenshot of the modulation matrix
Assign parts to different audio outputs and configure each effect DSP. Screenshot of the routing page


Sound Engine
Synthesis typeVFM (FM with variable algorithms) + resonant filter
Polyphony (6-op mode)300 voice
Operator controlMultiplier (x0...x40) or fixed frequency (0.1Hz...25Khz)
Quartertone & fine tuning
Key volume scaling (graphical)
LFO AM/FM amount
Waveform & waveform phase
Velocity sensitivity
Waveforms24 editable waveforms
Rendering enginesHigh quality FM (realtime interpolated waveforms)
Oldschool FM (no interpolation)
Waveform editionFree on-screen drawing, import from wave file.
Operations : Flip X, Flip Y, Smooth, Set volume, Remove DC, Mix two waveforms, Crossfade, Maximize, Add harmonic
Envelope generator6-points graphical, logarithmic or linear, with loop point.
14 envelopes per voice (6x volume, 6x pitch, 1x filter, 1x pan) useable as modulation matrix sources

Envelope segment min. duration: 0.5ms
Envelope segment max. duration: 29 seconds
Patch layer parametersVolume
Bottom/Top key
Bottom/Top velocity
Exclusion Group (8 groups)
Round Robin (32 slots)
Filter1 per voice, lowpass, resonant
LFO1 per voice, waveform + bitmask combination
Waveform phase (fixed or random), delay & attack rate control
Independent or Common phase for each note
Speed can be hard set or synced to MIDI clock.
Max. Voices per patch128 layers/splits
Max. Total Voices3328 (26 banks * 128 voices)
Max. Total Patches3328 (26 banks * 128 patches)
Max. Total Performances256
Modulation matrix8 source/destination mappings per voice
Choose between 138 sources and 228 destinations
Scaling and Offset parameters
Modulation matrix SourcesNote number
Release Velocity
Poly. Aftertouch
Pitchbend Wheel
Number of active notes
Envelope (pan, filter, operator volume/pitch)
Random number generator
MIDI CC (0...127)
Modulation matrix Destinations Operator Volume
Operator Frequency Mult
Operator Frequency Coarse
Operator Frequency Fine
Operator Waveform
Operator Initial Phase
Operator Volume Envelope Speed
Operator Volume Envelope Segment 1-6 Time
Operator Volume Envelope Point 1-6 Height
Operator Pitch Envelope Speed
Operator Pitch Envelope Segment 1-6 Time
Operator Pitch Envelope Point 1-6 Height
LFO parameters
Filter Cutoff/Resonance
Filter Envelope Speed
Filter Envelope Segment 1-6 Time
Filter Envelope Point 1-6 Height
Pan Envelope Speed
Pan Envelope Segment 1-6 Time
Pan Envelope Point 1-6 Height
Sound engine internal resolution32-bit float
Scales/Temperaments32 editable presets
Custom scales up to 32 notes, 0-1200 cents tuning, octave stretching
SCALA file import
Transposition+36/-36 semitones. Global, per patch and per voice
DAC24-bit, 48Khz
SNR> 100dB
Audio latency< 2ms
Boot time< 3s
Voice Sequencer1 per patch (300 total), 128 events, 128 steps resolution grid, 1-500 BPM tempo, syncable to MIDI beat
An event contains a voice number, note number, duration and volume. It can trigger notes or dynamically swap the FM parameters with another voice
Multitimbrality300 voice / 16 parts assignable to any MIDI channel
Advanced MIDI featuresGlobal MIDI filters by message and by channel
Raw MIDI hex monitor
Real-time CC monitor
Built-in MIDI file player (format 0 &1 support, 32 tracks max)
Custom velocity curves
Built-in MIDI merger that merges MIDI DIN, USB and internal MIDI player commands.
General MIDI support: patch bank C for the 128 melodic instruments, patch D0 for the GM-compatible drum kit
MPE support (without Common Channel)
MiscDX7 patch import (via SysEx: single-voice, via USB: single-voice & 32-voice dumps). Primitive import.
Random voice generation
Effect Processors2 multi-effect processors with independant Send level for each part
3 modes:
Effect ListReverb (7 types)
Stereo Delay
Stereo Chorus
Distorsion (5 types)
Ring Modulation
Equalizer (3 band, 24dB/oct)
Phase Shift
Internal Resolution48Khz, 32-bit float
Audio8x 6.35mm jack outputs, balanced, useable as 4 stereo pairs or 8 mono.
Stereo 6.35mm unbalanced headphones jack output
MIDIDIN (In, Out, Thru), RTP-Ethernet (AppleMIDI), USB device, USB host
USB host capabilitiesUSB mass-storage (USB sticks and drives, FAT32 or exFAT formatted)
MIDI standard interface (compatibility is not guaranteed with all devices)
USB device capabilitiesUSB 1.1 Full-Speed MIDI class-compliant device (no drivers required)
Power inputDC IN 12V 2A
Session typeAppleMIDI
IPUser-defined or using DHCP
PortUser-defined (default 5004/5005)
Network latency0-3ms (normal use)
0-1ms (display disabled)
Type7" IPS capacitive touch screen
Multi-touch support
Resolution400*240, 16-bit (65536) colors
Viewing angle160° horizontal
160° vertical
(Calculated for text readability. Colors may change depending on angle.)
Refresh rateFixed, 60 FPS
Fonts3 types
Background5 types
Color schemes14 types
OtherAdjustable backlight brightness
Dim/Turn off the screen after a delay
Background pattern and color selection
Touch screen calibration
Blue level adjustment
Sound feedback on touchscreen
Key LED backlight enable/disable
Edition, Memory & Storage
ControlsTouchscreen, 14 mechanical switches, 7 rotary encoders, 2 volume pots (main output & headphones)
Virtual keyboardQWERTY, QWERTZ, AZERTY
Undo/Redo history1024 steps
Global memory protectionWrite protect option for Patches, Voices, Performances, Scales and Waveforms
Import/ExportPatches, Voices, Performances, Scales and Waveforms from USB mass-storage devices.
Firmware upgradeVia USB
AccessoriesUniversal AC adapter, user manual, 4x tabletop brackets, 4x screws, hex screwdriver
Size (EssenceFM)133 x 482.6 x 58 mm
Weight (EssenceFM)1750 g
Size (package)610 x 160 x 160 mm
Weight (package)3.127 kg
Operating Temperature0 ~ 40°C
Power consumption< 10W
Power adapterUniversal wall adapter, AC 100-240V