ST Modular Euro Kastle (p&p)

19,95 €
inkl. MwSt., zzgl. Versand


ST Modular Euro Kastle

10 HP Eurorack version of the Bastl Instruments Kastle or Drum Kastle Synth

It has all the functionality of the Kastle 1.5 with some tiny amendments to fit the Eurorack format. OSC mode and Rungler mode may be changed via switch instead of patching cables and you only have one input/output per functionality instead of 2 or 3 on the desktop synth. Though it has a Waveshape CV attenuator which is not available on the original Kastle.Although it is highly recommended to buy Bastl´s desktop version, you don´t need to purchase the original in order to build the EuroKastle. You may completely source the parts by yourself. Kindly note that there is no AVR ISP header on the PCB. You need to flash the Attiny85 ICs before they are put into the IC sockets (e.g. using a breadboard). You can use any AVR ISP programmer to complete the programming process. It runs on regular Eurorack power supply units.

Version V2:

AVR Headers added to PCB bottom for ATTiny programming directly on PCB / Enlarged Diode Pads for better soldering experience / CV Sources are normalized to CV Input switches for instant wiggling without patching itself

Version V3:

Added jumper to change Mix OR OUT socket to TRIGGER INPUT for the Drum Kastle firmware

(you get the V3 pcbs here !)



  • Please check out the Bastl Desktop Synths for further details and consider buying one - it´s worth it!
  • Use with Bastl Kastle or Drum Kastle Firmware
  • Illuminated EuroKastle Logo•Wrong Polarity Protection
  • 3U Eurorack module, 10 HP wide
  • Power consumption: 47 mA at +12 V

The module consists of two boards:

  • Front PCB Panel (either Eurokastle or Drumkastle)
  • Main PCB (V3)

*** panel & pcb only, no further parts are included here !

*** ***

BOM & Co