ABC Mixer Kit

ABC is a simple 6 channel signal mixer.

This is for a full kit in the Eurorack format.

Availability: In stock




ABC is a simple 6 channel signal mixer. It has 6 inputs – A,B,C,D,E and F – and two outputs – A+B+C – which is mixed in to the D+E+F output if nothing is inserted in the A+B+C jack. ABC is designed to mix audio signals, but can be modified to mix CV signals instead. There are 6 solder jumpers on the back side, which can be connected to turn the abc mix into a CV mixer.

There are also 3 jumpers on the back side which can be used to normalize inputs A to D, B to E and C to F. This is useful if you would like to use the abc mix as a 3 channel stereo mixer (using both outputs and having separate volume control for left and right channel).


  • 6 channel mixer
  • 6 inputs A,B,C,D,E,F
  • 2 outputs A+B+C and D+E+F (A+B+C is mixed into D+E+F if no jack is inserted in A+B+C)
  • 3 jumpers to select normalization of inputs A to D, B to E, C to F (useful for stereo mixing)
  • inputs are AC coupled
  • there are solder jumpers for changing the inputs to DC coupling (than it can be used for mixing CV signals)
  • front panel from oak wood
  • handmade in Brno, Czech republic

Specs & Downloads

Specs & Downloads

manufacturer Bastl Instruments
HP 5
Depth 35mm
+12V <10mA
-12V <10mA
+5V No
Additional Resources Build Guide Schematics & PCB


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