uComp Diode Compressor Colour


  • Partial Kit
  • Step by Step Guide
  • Advanced

Inspired by the classic British diode compressor design, adapted to fit on a small board. Using miniature transformers that should not be underestimated in terms of sound. From subtle control to aggressive shaping with detailed transients, all while infusing the source with that vintage, warm tone.

The uComp is a diode compressor designed by Zombie Rec. We offer it as a partial kit for advanced builders. We provide a bill of materials, assembly guide, and the harder-to-find components. You will have to source the rest of the components yourself, and there is a little bit of SMD soldering.


  • Distinctive diode compression can be dialed in for moderate smoothing or heavy limiting.
  • Neutrik input and output transformers
  • Compatible with the Colour format
  • Full, step-by-step assembly instructions


  • PCB
  • Nylon standoffs
  • 8-pin Colour header
  • BC550 transistors
  • Neutrik transformers
  • The rest of the parts must be sourced separately. See the uComp Bill of Materials

Real analog plugins.

Colour is a new format for analog audio gear designed for and by the DIY community. We took our favorite sounding analog circuits and put them on modules that are small, affordable, and swappable.

The Colour format consists of Colours and Palettes:

Colours are ultra-compact, pluggable analog circuit blocks that impart various types of analog color. Check out our ever-growing selection of Colours. Colours can be designed and released by anyone.

Palettes provide controls, power, and support circuitry for Colours. We currently offer the Colour 500 Palette and CP5 Mic Preamp with Colour.

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