Doepfer A-138c Polarizing Mixer

4-Channel mixer for mixing control signals

  • Allows four incoming voltages to be added or subtracted from the output signal
  • Eurorack format
  • Width: 8 HP
  • Depth: 35 mm
  • Power requirements: + 20Ma (+ 12V) / -20mA (-12V)

Further Information

Modul Type Mono
Width 8 TE / HP
10 Customer Ratings
  • 5
  • 4
  • 3
  • 2
  • 1
4.5 /5
  • handling
  • features
  • quality
Total
nice and concise mixer.
Henri aus B., 12.02.2014
this mixer works as you expect, but some minor addition would make much more useful.
for instance some leds to monitor the in and out, and having knobs with a center "click" so that you know you are at the zero position.

also after playing with some make noise module i tend to miss their cleverness. for instance when you unplug one input of such mixer on a make noise, it becomes an offset source, which comes really handy in many cases.

that said, the module follows the doepfer philosophy : make one thing at a time, with a clear and simple approach. in that regard this module is a prefect match !
but i would recommend also looking at other makers of modules that might have complete/complex product.
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Total
Good for CV, bit less for audio
30.03.2015
This module handels cv signals very well, but mixing audio signals is pretty hard.
At the moment I need to, but the problem is that the zero-point is very hard to find, so quickly muting channels is a bit hard.

But the module handels CV very well. It could even actually be seen as an improvement on the offset generator as the first knob can be used as a voltage offset, while the other 4 inputs can still be used to generate offsets and be combined to complex patterns for note-sequences or modulations.

After 1.5 years still no crackles or noises..
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de Original review (Show translation)
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Total
Top Modul für "Waveshaping" in Verbindung mit einem A-110-1 VCO
06.03.2017
Ich verwende den Polarizing Mixer in Verbindung mit dem VCO A-110-1. Man patcht einfach jede der 4 Ausgangs-Wellenformen in je einen Mixerkanal des A-138c.
Dann kann man mit den Reglern Wellenformen addieren oder voneinander abziehen.
Durch addieren/subtrahieren von Rechteckwellen von einem Sinus z.B. eine Verzerrung einbringen, beim Abziehen von Dreieckswellen von anderen Wellenformen eine Art "Wavefolding" betreiben, etc. etc.
Der Phantasie sind da keine Grenzen gesetzt. Am besten, wenn man noch ein Oszilloskop verwendet. Dann kann man sehen wie sich die Wellen "verbiegen" und hat somit noch visuelles Feedback zum Akustischen.

Macht großen Spaß, klare Kaufempfehlung!
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Total
Mas que un mixer
FERNANDOR, 13.04.2013
Un módulo imprescindible. A parte de mezclar correctamente, permite añadir offset a las salida lo cual usado con un LFO y un cuantizador... omo CV, en fin, para cualquier uso en el que no queremos votajes negativos, va muy bien.
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