Sonic Potions Intros LXR Drum Synthesizer


Sonic Potions has introduced the LXR Drum Synthesizer – a new DIY drum machine.

Here’s a video preview:


  • Cortex M4 based
  • 6 voices (VA and FM)
  • 7 sequencer tracks (extra open HH channel)
  • 44kHz / 16 bit audio
  • 4 mono outputs
  • 4 different instrument engines
  • 1/128 step pattern resolution
  • USB/Din Midi
  • different lengths for each track
  • 8 chainable patterns per preset
  • Step probability
  • SD-Card
  • Cowbells!
  • 39 buttons
  • 6 LFOs routable to every voice parameter
  • complete kit. comes with all needed parts for assembly
  • No SMD soldering required
  • open source
  • All! actions possible without stopping the sequencer playback

Here are audio demos:

The kits will be available for 280 Euro (case extra), starting Friday, June 28th, 7pm CEST. See the Sonic Potion site for details.


18 thoughts on “Sonic Potions Intros LXR Drum Synthesizer

      1. It’s a bit of work, because of all the buttons, it also has a fair amount of ICs and resistors. It’s definitely not a beginner’s project, but if you’ve built a couple of boxes this should be pretty straightforward. The assembly guide is well made and very detailed (with pics and all).
        It’s a large device (compared to other DIY projects) but it’s only one PCB.

  1. @ fanto– What do you mean by “pay extra for the sounds”? You download their free online file to your SD card and insert it into the LXR or create your own, right?

  2. Sounds great and I will definitely get one if they iron out all the little pops that you can hear.

    Anyone else hear these little pops every now and again, while the guy turns and tweaks? It’s a bit random but definitely audible,

  3. A lot of the demos are from early development states.
    Most of the pops that can be heard in older demos are from an overflow in the mixer engine that has been fixed some firmware versions ago 😉 At least the 12 beta testers are happy now and haven’t complained since the update.

    Same goes for the high pitched noise and background noise floor in some of the demos.
    I just realized they came from my M-Audio USB soundcard. I’m still surpriced how much attention the project has gathered over the last days. Guess I should put some propperly recorded demos online, soon!

  4. 70 Euro extra for the acrylic case, not including shipping??

    Am I just completely out of touch, or is that outrageous?

  5. Spitsun, it’s about right when compared to a Shruthi-1 plexi which goes for 30€ and is tiny in comparison and does not contain 39 buttons. And I may be wrong but “neuropa” isn’t a terribly common plexi color

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