333 Utility
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333 Utility

A Eurorack module with three identical sections, each combining a three-input DC-coupled summing amplifier with three buffered outputs. It works as a mixer for audio or control voltages, as a buffered multiple, or as both at once.

  • Eurorack summing and distribution module
  • Three sections, each with 3 inputs and 3 buffered outputs
  • DC-coupled inputs sum audio and control voltages
  • Normalled outputs allow a 1-to-9 buffered multiple
  • 6 dB attenuator switch per section, cascadable to -18 dB
  • Weighs 0.143 kg
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Beskrivelse

The 333 is a Eurorack summing and distribution module. It has three identical sections, colour-coded red, yellow and green. Each section sums three inputs and feeds three independently buffered outputs, giving nine outputs in total. The design is derived from the maker's CGM creative mixer series.

The summing stage is DC coupled, so it can add control voltages as well as audio. Tolerance in the sum and output stages is very low, which makes it suitable for combining quantized voltages such as the quantized outputs of the Sapèl. Because all outputs are buffered, V/oct signals can be multiplied with high fidelity.

The red and yellow outputs are normalled to the first input jack of the yellow and green sections, so the module can act as a 1-to-9 buffered multiple, or blend up to seven signals. Each section has a 6 dB attenuator switch that halves the incoming level, for audio or CVs. The three switches can be cascaded to reach -12 dB in the second section and -18 dB in the third.

Video

Spesifikasjoner

Merke
Frap Tools
Modell
333 Utility
Kategori
Synther og keyboards › Modulært (Eurorack)

Inputs

Sections
3 (red, yellow, green)
Inputs per section
3
Total inputs
9
Input coupling
DC coupled

Outputs

Outputs per section
3
Total outputs
9
Output type
Independently buffered
Output normalling
Red and yellow outputs normalled to first input of yellow and green sections

Audio

Signal types
Audio and control voltage
Attenuator
-6 dB switch per section (halves amplitude)
Cascaded attenuation
-12 dB in second section, -18 dB in third
Signal blending
Up to 7 signals
Multiple mode
1 to 9 buffered multiple

Physical

Format
Eurorack
Weight
0,143 kg
Dimensions
15,6 × 6 × 6 cm

Data: frap.tools; bilder: Frap Tools product page · oppdatert 2026-10-14 · Fant du en feil? Skriv til oss