ABC - Aluminium Panel

Bastl Instruments

6 channel mixer, dual 3 channel mixer, 3 channel panning mixer.

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 so it can be used for mixing CV signals)
  • Front panel from oak wood
  • Handmade in Brno, Czech republic


Current: +12 <10mA, -12 <10mA
35mm deep (skiff friendly)
PTC fuse and diode protected 10 pin power connector

ABC Manual