JoMoX Mod FM Hybrid Synthesizer Now Available

Berlin synth maker JoMoX announced today that they are now shipping the Mod FM synthesizer, a analog/digital hybrid that combines FM synthesis with analog filters and VCAs.

The JoMoX Mod FM, originally introduced at Superbooth 2021, is an 8-voice multi-timbral FM synth in Eurorack format.

It provides 4 Operators and 2 LFOs/VCOs per voice. Additionally it has 2 analog filters and analog VCAs per voice. Each voice has own CV/Gate inputs and an individual output. There is a mix output which separates even and odd voices. Here you can mix internal effects, like delay and reverb, to the stereo output signal.

The ‘best of both worlds’ approach means that you can combine FM sounds with analog filters, save patches and control the synth using MIDI or CV/Gate signals.


  • 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 storeability, also CV amounts
  • 128 presets, 118 multi sets
  • 2x 128x64px OLED displays

Pricing and Availability:

The JoMoX Mod FM synthesizer is available now price at 999.00 €.

21 thoughts on “JoMoX Mod FM Hybrid Synthesizer Now Available

      1. firewire is way more of a solid connection that those little micro usb ones, grateful that people are going with usb-c so much nowadays!

  1. Looks cool, love the colors. But I wonder how they went all the way into production without a single person saying “You know, we could save like 12hp by just moving everything over to the left a bit”.

    So strange to have 16 cluttered knobs on one side where my fingers need to go and then a bunch of room around that screen on the other side.

      1. No, the innards get designed around the front panel UI – that’s how almost every eurorack manufacturer does it. If it’s a tight fit, manufacturers will stack PCB’s so the controls are on one circuit board and all of the important chips and electronics are on one or more separate circuit boards.

    1. This cluncky / wasted space look is part of Jomox’s aesthetic. I don’t care for it either, but you can spot this brand easily in any studio.

    1. I can give JoMoX a pass on lacking audio pass through usb and even no micro usb, but how do you expect to be taken seriously in this day and age if you can’t even connect to a simple local WIFI?! I mean, how am I supposed to even use this thing? Does it even have video capabilities?!

  2. Next time he’s designing something, Jurgen from JoMoX should come on here and ask the geniuses what to do. I recon we’d end up with something that wouldn’t look out of place in Frankenstein’s castle.

    1. Yea!! I totally agree!! Do you think Frankenstein’s castle would have a maot filled with carnivorous marine or amphibious animals? Maybe even reptiles?!

  3. After my experience with the XBase 999 and their complete lack of first-party or even third-party support, I won’t go near JoMoX ever again. Their firmware resulted in several voices that didn’t respond to any MIDI message. They soldered a dead battery directly onto the board so the thing never had the ability to store my work from day 1. The LCD screen died and they couldn’t even respond to give me a part number. When I finally found some help from a friend and found the part, it was only available for over 100 bucks. Never again. Sounds great though, lol.

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