The Behringer 903A RANDOM SIGNAL GENERATOR is an excellent analog noise generator module designed for Eurorack modular synthesizer systems. This module perfectly captures the classic circuitry design of the iconic Modular 55 series from the 1970s. It operates as a versatile source of white and pink noise, ideal for creating percussion and ambient sounds. Additionally, it serves as a modulation source that can randomly vary various synthesis parameters, such as sample & hold and sequences.

• Compact size: Only occupies 4 HP width in a Eurorack setup.
• Power consumption: Requires 25 mA from +12 V and 35 mA from -12 V.
• Output connection: Features two pairs of 3.5 mm TS jacks, specifically designed for white and pink noise signals. The outputs are AC coupled with 700 Ω resistance (unbalanced).
• The white noise output level remains approximately 0 dBu across a frequency range of 22 Hz to 22 kHz, while the pink noise outputs reach a higher level of +4 dBu.

Some additional technical features include:

• Full analog circuit operation.
• Dimensions: 23 mm (W) x 20 mm (H) x 129 mm (D).
• Weight: approximately 0.05 kg.

Designed and manufactured in the United Kingdom, with production in China, the 903A provides a reliable way to introduce classic noise textures and complex modulation capabilities into any Eurorack synthesizer setup.