Jomox Mod FM Eurorack Synthesizer Instruction Manual

June 15, 2024
JOMOX

Jomox-Mod-FM-Eurorack-Synthesizer-LOGO

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

References

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