903A Random Signal Generator Eurorack Module

The Behringer 903A Random Signal Generator module brings the warm, gritty sound of analog white and pink noise to your Eurorack rig. With authentic circuitry cloned from a legendary 1970s modular synthesizer, it adds vintage flavor that can inspire new sonic textures.

Patchable Randomness

The 903A's dual outputs make this module a patching playground. Since each output carries its own distinct noise signal, you can build complex patches by treating them as separate voices. For instance, send one output to modulate oscillator pitch while the other tweaks a lowpass filter. The interacting modulations create pleasantly unpredictable warbles, gurgles and sweeps. You can also use the 903A strictly as an audio source, mixing its noise into your signal path to add vintage grit. Whether modulating parameters or providing texture, the 903A brings engaging randomness.

Shape Endless Soundscapes With Dual Outputs

The 903A module has two separate outputs, allowing you to route the white and pink noise signals independently. You can send them to different destinations in your Eurorack patch, opening up creative options. Use one output for audio while sending the other to modulate parameters on other modules. With the dual outputs, it's easy to build intricate patches that bring the 903A's random signals to life.

Add Retro Grit Anywhere With the Compact 4HP Design

Measuring just 4HP wide, the 903A module fits neatly into any Eurorack case or skiff. Whether you're short on space or creating a massive modular rig, it will integrate seamlessly. The small footprint belies the 903A's mighty sound. Dial in everything from subtle ambience to rumbling chaos to add retro-flavored atmosphere to your modular creations.

Harness the Warmth of All-Analog Circuitry

Everything about the 903A module stays true to its vintage roots, right down to the all-analog circuitry. From mellow hiss to punchy gusts of audio grit, the 903A brings organic randomness that's perfect for modulation or accenting your main signal.