Jomox Mod FM Eurorack Synthesizer Instruction Manual
- June 15, 2024
- JOMOX
Table of Contents
Jomox Mod FM Eurorack Synthesizer
Specifications
- Version: OS 1.0
- Model: FM
- Type: Eurorack FM Synthesizer
- Polyphony: Max. 8 voices
- MIDI Implementation: Yes
Product Usage Instructions
In Single Mode, the note number is added to the pitch of the voice. The basic
internal tuning is on note C1 (36) and is added from there on to the internal
pitch.
- Instrument: FM Synth (max. 8 voices polyph.)
- Note Number: 36-97
- Note Range: C1-C6
- Channel Range: 1-1
MIDI Implementation
Midi Note Commands
Single Mode
The note number is added to the pitch of the voice. The basic internal tuning
is on note C1 (36) and is added from there on to the internal pitch.
| Instrument | Note Number | Note | Channel |
|---|---|---|---|
| FM Synth (max. 8 voices polyph.) | 36-97 | C1-C6 | 1..16 |
Multi Mode
In Split Mode 0, the ModFM offers a key mapping for all Multi instruments.
Each Multi maps 4 notes on the keyboard. The 4 notes play the octaves of C1.
| Instrument | Note Number | Key note | Play note | Channel |
|---|---|---|---|---|
| Multi 1 | 36-39 | C1-D#1 | C1, C2, C3, C3 | 1..16 |
| Multi 2 | 40-43 | E1-G1 | C1, C2, C3, C3 | 1..16 |
| Multi 3 | 44-47 | G#1-B1 | C1, C2, C3, C3 | 1..16 |
| Multi 4 | 48-51 | C2-D#2 | C1, C2, C3, C3 | 1..16 |
| Multi 5 | 52-55 | E2-G2 | C1, C2, C3, C3 | 1..16 |
| Multi 6 | 56-59 | G#2-B2 | C1, C2, C3, C3 | 1..16 |
| Multi 7 | 60-63 | C3-D#3 | C1, C2, C3, C3 | 1..16 |
| Multi 8 | 64-67 | E3-G3 | C1, C2, C3, C3 | 1..16 |
| Multi 1 | 68-71 | G#3-B3 | C1, C2, C3, C3 | 1..16 |
| Multi 2 | 72-75 | C4-D#4 | C1, C2, C3, C3 | 1..16 |
| Multi 3 | 76-79 | E4-G4 | C1, C2, C3, C3 | 1..16 |
| Multi 4 | 80-83 | G#4-B4 | C1, C2, C3, C3 | 1..16 |
| Multi 5 | 84-87 | C5-D#5 | C1, C2, C3, C3 | 1..16 |
| Multi 6 | 88-91 | E5-G5 | C1, C2, C3, C3 | 1..16 |
| Multi 7 | 92-95 | G#5-B5 | C1, C2, C3, C3 | 1..16 |
| Multi 8 | 96-101 | C6-D#6 | C1, C2, C3, C3 | 1..16 |
In Split Mode 1, each Multi voice plays on its own channel.
| Instrument | Note Number | Note | Channel |
|---|---|---|---|
| Multi voice 1-8 | 36-97 | C1-C6 | 1..8 = Multi voice |
Program Change
| Function | Value | Channel |
|---|---|---|
| Single Preset recall | 0-127 | 1..16 |
| Multi Set recall | 0-118 | 1..16 |
Sound Parameter (Continuous Controllers)
Midi CH 1-15
| FM Synth Engine | Controller No. | Value range |
|---|---|---|
| OP Cents | 96 | 0-100 |
| OP1 Tune | 100 | 0-127 |
| OP2 Tune | 101 | 0-127 |
| OP3 Tune | 102 | 0-127 |
| OP4 Tune | 103 | 0-127 |
| FM Amount 1→2 | 104 | 0-127 |
| FM Amount 1→3 | 105 | 0-127 |
| FM Amount 1→4 | 106 | 0-127 |
| FM Amount 2→1 | 107 | 0-127 |
| FM Amount 2→3 | 108 | 0-127 |
| FM Amount 2→4 | 109 | 0-127 |
| FM Amount 3→1 | 110 | 0-127 |
| FM Amount 3→2 | 111 | 0-127 |
| FM Amount 3→4 | 112 | 0-127 |
| FM Amount 4→1 | 113 | 0-127 |
| FM Amount 4→2 | 114 | 0-127 |
| FM Amount 4→3 | 115 | 0-127 |
| --- | --- | --- |
| OP1 Env Attack | 14 | 0-127 |
| OP2 Env Attack | 15 | 0-127 |
| OP3 Env Attack | 16 | 0-127 |
| OP4 Env Attack | 17 | 0-127 |
| OP1 Env Decay | 18 | 0-127 |
| OP2 Env Decay | 19 | 0-127 |
| OP3 Env Decay | 20 | 0-127 |
| OP4 Env Decay | 21 | 0-127 |
| OP1 Env Sustain | 34 | 0-127 |
| OP2 Env Sustain | 35 | 0-127 |
| OP3 Env Sustain | 36 | 0-127 |
| OP4 Env Sustain | 37 | 0-127 |
| OP1 Env Release | 38 | 0-127 |
| OP2 Env Release | 39 | 0-127 |
| OP3 Env Release | 40 | 0-127 |
| OP4 Env Release | 41 | 0-127 |
| OP1 EG→VCA Amount | 22 | 0-127 |
| OP2 EG→VCA Amount | 23 | 0-127 |
| OP3 EG→VCA Amount | 24 | 0-127 |
| OP4 EG→VCA Amount | 25 | 0-127 |
| OP1 EG→FM Amount | 26 | 0-127 |
| OP2 EG→FM Amount | 27 | 0-127 |
| OP3 EG→FM Amount | 28 | 0-127 |
| OP4 EG→FM Amount | 29 | 0-127 |
| OP1 LFO1→FM Amount | 70 | 0-127 |
| OP2 LFO1→FM Amount | 71 | 0-127 |
| OP3 LFO1→FM Amount | 72 | 0-127 |
| OP4 LFO1→FM Amount | 73 | 0-127 |
| OP1 LFO2→AM Amount | 74 | 0-127 |
| OP2 LFO2→AM Amount | 75 | 0-127 |
| OP3 LFO2→AM Amount | 76 | 0-127 |
| OP4 LFO2→AM Amount | 77 | 0-127 |
| LFO1→MIX Volume | 78 | 0-127 |
| LFO2→MIX Volume | 79 | 0-127 |
| LFO1 Rate | 80 | 0-127 |
| LFO2 Rate | 81 | 0-127 |
| LFO1 Waveform | 82 | 0-63 |
| LFO2 Waveform | 83 | 0-63 |
| FM Amount 4→3 | 115 | 0-127 |
| --- | --- | --- |
| OP1 Env Attack | 14 | 0-127 |
| OP2 Env Attack | 15 | 0-127 |
| OP3 Env Attack | 16 | 0-127 |
| OP4 Env Attack | 17 | 0-127 |
| OP1 Env Decay | 18 | 0-127 |
| OP2 Env Decay | 19 | 0-127 |
| OP3 Env Decay | 20 | 0-127 |
| OP4 Env Decay | 21 | 0-127 |
| OP1 Env Sustain | 34 | 0-127 |
| OP2 Env Sustain | 35 | 0-127 |
| OP3 Env Sustain | 36 | 0-127 |
| OP4 Env Sustain | 37 | 0-127 |
| OP1 Env Release | 38 | 0-127 |
| OP2 Env Release | 39 | 0-127 |
| OP3 Env Release | 40 | 0-127 |
| OP4 Env Release | 41 | 0-127 |
| OP1 EG→VCA Amount | 22 | 0-127 |
| OP2 EG→VCA Amount | 23 | 0-127 |
| OP3 EG→VCA Amount | 24 | 0-127 |
| OP4 EG→VCA Amount | 25 | 0-127 |
| OP1 EG→FM Amount | 26 | 0-127 |
| OP2 EG→FM Amount | 27 | 0-127 |
| OP3 EG→FM Amount | 28 | 0-127 |
| OP4 EG→FM Amount | 29 | 0-127 |
| OP1 LFO1→FM Amount | 70 | 0-127 |
| OP2 LFO1→FM Amount | 71 | 0-127 |
| OP3 LFO1→FM Amount | 72 | 0-127 |
| OP4 LFO1→FM Amount | 73 | 0-127 |
| OP1 LFO2→AM Amount | 74 | 0-127 |
| OP2 LFO2→AM Amount | 75 | 0-127 |
| OP3 LFO2→AM Amount | 76 | 0-127 |
| OP4 LFO2→AM Amount | 77 | 0-127 |
| LFO1→MIX Volume | 78 | 0-127 |
| LFO2→MIX Volume | 79 | 0-127 |
| LFO1 Rate | 80 | 0-127 |
| LFO2 Rate | 81 | 0-127 |
| LFO1 Waveform | 82 | 0-63 |
| LFO2 Waveform | 83 | 0-63 |
| LFO1 VCO Oct | 84 | 0-6 |
| --- | --- | --- |
| LFO2 VCO Oct | 85 | 0-6 |
| LFO1 VCO Mode | 86 | 0:LFO, 1:VCO |
| LFO1 VCO Mode | 87 | 0:LFO, 1:VCO |
| MULTI Target | 33 | 0-7 |
| ALGORITHM select | 42 | 0-26 |
| OVERTONE Mode | 67 | 0-5 |
| STORE Preset | 62 | 64 |
| Volume | 7 | 0-127 |
| Filter Engine | Controller No. | Value range |
| --- | --- | --- |
| FIL Cutoff | 43 | 0-127 |
| FIL Resonance | 44 | 0-127 |
| FIL Shape LP/BP/HP | 45 | 0-127 |
| FIL Env Amt | 46 | 0-127 |
| FIL Env Attack | 47 | 0-127 |
| FIL Env Decay | 48 | 0-127 |
| FIL Env Sustain | 49 | 0-127 |
| FIL Env Release | 50 | 0-127 |
| FIL LFO Rate | 69 | 0-127 |
| FIL LFO Waveform | 52 | 0-127 |
| FIL LFO Intensity | 53 | 0-127 |
| FIL TP24 Mix Vol | 66 | 0-127 |
| FIL MM12 Mix Vol | 57 | 0-127 |
| FIL Key Track | 55 | 0-127 |
| FIL Noise Mix Vol | 56 | 0-127 |
| FIL Noise Metal | 58 | 0-127 |
0:Off, 1:White
Global Controllers on Channel 16
| FX Reverb | Controller No. | Value range |
|---|---|---|
| Room Size | 100 | 0-127 |
| Low Pass Reflections | 101 | 0-127 |
| Hi Pass Reflections | 102 | 0-127 |
| Reverb Level | 103 | 0-127 |
| FX Delay | Controller No. | Value range |
| --- | --- | --- |
| Delay1 Time | 14 | 0-127 |
| Delay1 Feedback | 15 | 0-127 |
| Delay1 Slow/Medi/Fast | 17 | 0-2 |
| Delay1 Level | 18 | 0-127 |
| Delay2 Time | 19 | 0-127 |
| Delay2 Feedback | 20 | 0-127 |
| Delay2 Slow/Medi/Fast | 21 | 0-2 |
| Delay2 Level | 22 | 0-127 |
Sysex Commands
Single Preset bulk dump
$F0(SysEx begin), $31(JoMoX-manufacture. code), $3F(Command Sys Ex dump),
$68(Product code), $01(Single Preset),$55, XX(Data0),XX(Data1),…, $F7(End of
SysEx)
All Preset bulk dump
$F0(SysEx begin), $31(JoMoX-manufacture. code), $3F(Command Sys Ex dump),
$68(Product code), $02(All Presets),$55, XX(Data0),XX(Data1),…, $F7(End of
SysEx)
Single Multi bulk dump
$F0(SysEx begin), $31(JoMoX-manufacture. code), $3F(Command Sys Ex dump),
$68(Product code), $03(Single Multi),$55, XX(Data0),XX(Data1),…, $F7(End of
SysEx)
All Multi bulk dump
$F0(SysEx begin), $31(JoMoX-manufacture. code), $3F(Command Sys Ex dump),
$68(Product code), $04(All Multis),$55, XX(Data0),XX(Data1),…, $F7(End of
SysEx)
OS bulk dump
$F0(SysEx begin), $31(JoMoX-manufacture. code), $7F(Command Sys Ex dump),
$68(Product code), $10(CodeUpdate),$55, $00(14 Bit Block ID HB), $00(14 Bit
Block ID LB), $77, XX(Data0),XX(Data1),…, $F7(End of SysEx)
OS Filter Engine bulk dump
$F0(SysEx begin), $31(JoMoX-manufacture. code), $7F(Command Sys Ex dump),
$68(Product code), $11(SlaveUpdate),$55, $00(14 Bit Block ID HB), $00(14 Bit
Block ID LB), $77, XX(Data0),XX(Data1),…, $F7(End of SysEx)
Specifications
- 8 voices fully multi-timbral FM synth
- 4 operators per voice
- Full modulation matrix / 26 algorithms
- 2 LFO/VCOs per voice
- CV/Gate per voice
- CV modulation inputs per operator
- Outputs for each voice plus mix-out
- True audio FM modulation inputs
- True analog filters per voice
- 24db low pass
- 12dB multimode LP/BP/HP cont. shape
- True analog VCAs per voice
- Midi TRS type A
- USB C device
- Digital reverb, 2x stereo delay
- Full storability, also CV amounts
- 128 presets, 118 multisets
- 2x 128x64px OLED displays
Power consumption
- +12V : 370mA max.
- -12V: 170mA max.
- Total power: 6,5W
Dimension
- Size: 56 HP = 284mm
- Height: 3 RU = 129mm
- Depth: 40mm
FAQs
Frequently Asked Questions (FAQ)
- Q: What is the maximum polyphony of the ModFM?
- A: The ModFM has a maximum polyphony of 8 voices.
- Q: What MIDI commands are supported in Single Mode?
- A: In Single Mode, the ModFM supports MIDI note commands. The note number is added to the pitch of the voice.
- Q: How many Multi-instruments can I use in the ModFM?
- A: The ModFM supports up to 8 Multi instruments.
- Q: What is the value range for the sound parameters controlled by Continuous Controllers?
- A: The value range for the sound parameters controlled by Continuous Controllers is 0-127.
Service, updates, tips and tricks are
available at:
JoMoX GmbH
Sophie-Charlotten-Str. 15
Hauptgebäude EG
D-14059 Berlin Germany
email: support@jomox.de
www.jomox.de
We hope that you’ll have lots of entertainment, joy, and timeless awareness
with our products.
Any feedback you might have is very welcome!
Cheers, Jürgen Michaelis Berlin, 2023