SEICHE Holocene Electronics Eurorack

Complex Filter and wavefolding VCA

What is Seiche?(pronounced say-sh)


Seiche is a 16HP “Complex Filter” combining traditional analog filtering with nonlinear wave shaping. Each of the two channels offers:

  • OTA Based 2-pole State Variable Filter (Switchable between Lowpass, Bandpass, Highpass)

  • Integrated Wavefolder

  • Normalization for FM or AM between channels
    switchable using a toggle switch.

  • Ping input for percussive tones
Think of it as a dual voice core, filter sculptor, waveshaping distortion module, and character rich Lowpass gate all in one.

https://holocene-electronics.net/products/seiche

  • 100 mA +12V
  • 93 mA -12V
  • ? mA 5V
  • 45 mm Depth

This Module is currently available.

$230