Recent Posts

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PreenFM2 / Re: PreenFM Eurorack module
« Last post by served on May 02, 2019, 04:51:03 PM »
We are now preping for a PreenFM Eurorack DIY kit with the dedicated skiff for standalone use.

It will be available beginning of June with instruction manual.

Retrofit kit will also be back in stock in June with instruction manual.
PreenFM2 / Re: external filter
« Last post by matrix12x on April 30, 2019, 04:34:32 AM »
I thought about doing this as a option.
PreenFM2 / Re: external filter
« Last post by served on April 29, 2019, 08:10:40 PM »
You could use midi controller for that with ease. But saving part is tricky. You could save midi CC parameter for example.
PreenFM2 / Re: external filter
« Last post by Xavier on April 26, 2019, 01:08:25 PM »
No there's no CV out from the preenfm2. Neither anything close to it.
It would require a different mapping of the CPU pins in the main PCB and in the preenF405 so that we can use a internal DAC or maybe a PWM with Low pass filter.

PreenFM2 / external filter
« Last post by matrix12x on April 25, 2019, 04:46:24 AM »
Is it possible to send a control voltage from the preen FM2 to another device like a filter? and store that value in the patch?

Would it require adding extra circuitry?

I was thinking it would be cool to add on an external analog filter, like maybe a comb filter or something, that I could sweep.
PreenFM2 / Re: PreenFM Eurorack module
« Last post by served on April 20, 2019, 10:20:19 PM »

The same picture is on the DIY kit shop page.
I will update it next following days with the classical Aroow marking.
PreenFM2 / Re: PreenFM Eurorack module
« Last post by tangram on April 19, 2019, 08:55:06 AM »
Hello CometBoogers,
I had the same problem. Ardi Mäesalu from Van Daal Electronics had sent me this picture. The circle is the ring on the diode.

Greetings Klaus
PreenFM2 / Re: PreenFM Eurorack module
« Last post by CometBoogers on April 19, 2019, 03:46:49 AM »
I am unclear on the polarity of diodes D10 and D11. There is no clear indicator on the PCB or elsewhere online.
PreenFM2 / Re: Latest firmware : 2.09 (2018 October 28th)
« Last post by don_sook on April 19, 2019, 12:05:17 AM »
Hey, Xavier

Thanks for the firmware update. When would we expect the next one?

I would love to have more destinations in the modulation matrix. Some which come to mind:
  • Envelope 1 - 6 Trigger, Envelope * Trigger (e.g. trigger envelopes with an LFO)
  • Algorithm (e.g. cycle through different algorithm via LFO)
  • Op1-Op6, Op* Oscillator Shape(e.g. cycle through different oscillator shapes via LFO)
  • LFO 1-3, LFO* Shape(e.g. cycle through different LFO shapes via LFO)
  • Free Envelope 1-2 Parameters (e.g. Free Envelope 2 'Attk')

Thanks for all your work on this :)
PreenFM2 / Re: Power adapter advice
« Last post by don_sook on April 18, 2019, 11:46:13 PM »
I bought my power supply from Van Daal Electronics.

You can also find power supplies from eBay if you search '2.1mm 9v adapter'. I think this would work as well.

Just make sure that it's centre positive, plug size is 2.1mm, volts is between 7.5 or 9, minimum 300mA current.
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