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903A Random Signal Generator Eurorack Module

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Eurorack-compatible noise generator module with classic analog circuitry

The Behringer 903A random signal generator module is a vintage-sounding noise generator from the ‘70s, sized for the Eurorack. This module generates both white and pink noise via two 3.5 mm outputs, each allowing players to send different signals to other modules in their rig.

Authentic Circuitry, Modern Flexibility

This module belongs to a series from Behringer, bringing authentic reproductions of the circuitry from the modular 55, 35 and 15 series to the Eurorack format. Since the 1970s, these synths have been used by some of the world’s most famous pop, rock and jazz musicians. Now, musicians can build their very own, unique synthesizer that can fit in a standard Eurorack case for a very affordable price. Mix and match specific modules to create a personal sound to complement any genre of music.

Eurorack Ready

Installing the 903A is simple, as it was designed to fit into a standard Eurorack case. Just connect the power cables to the power supply and screw in the module using the included screws. This allows for the 903A to be mixed with other synth modules for a truly unique setup.


  • Vintage-sounding 903A noise generator module from the '70s in Eurorack format
  • From a series of modules inspired by the System 55, 35 and 15 series synths
  • Reproduces sounds from famous pop, rock and jazz records beginning in the 1970s
  • Generates both white and pink noise
  • Two outputs per noise source
  • Designed and engineered in the United Kingdom

An authentic addition to your Eurorack. Order now.


903A Random Signal Generator Eurorack Module Specifications:

Eurorack requirements
  • 4 HP
  • 25 mA +12 V
  • 35 mA -12 V
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