Penrose is a simple CV quantizer DIY kit for the eurorack format. It takes an incoming continuous CV voltage and converts it to the nearest note in a scale. Active notes can be selected with the 12 buttons. You can use it to tune the output of your analog sequencer, as a semi random melody generator, for fast chiptune arpeggios and much more.

It comes as a complete kit with all needed parts to build it. That includes a multi colour aluminum frontpanel, high quality jacks and illuminated bi-color push buttons.

The project is open source, so the schematic and source code is available

CV input voltage: 0-10V
CV output voltage: 0-10V


  • 60 mA +12V
  • 3 mA -12V
  • 0 mA 5V
  • 40 mm deep
  • Ø 4.33 (30 Votes) Average Rating

Module is available as a DIY project only.

No info about availability.

6 HP Quantizer
submitted Jan 8th 2015, 13:11 by EarlJemmings | last Change Nov 13th 2017, 04:20 by mmmmmmuaaaaaa

Date Region Description Price Seller
USAThe overall condition of this **Sonic Potions Penrose Quantizer** is *mint* ...$165.00rediris View
EUFor sale is the Penrose quantizer that I built a couple of years ago. Just to...£90.00fluffymuff View
USAThe overall condition of this *Penrose Quantizer* is *like brand friggin new*...$150.00synthcat View
EUThe overall condition of this *Sonic Potions Penrose Quantizer* is good. I've...€110,00evidal View

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These merchants probably sell this module. Huh?


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