make-noise-plexiphon

Make Noise Plexiphon

Stereo, modeless spatial texturizer — morph continuously between echo and reverb.

16 HP Eurorack module

Plexiphon is a stereo spatial texturizer built on entirely new DSP code by Tom Erbe (soundhack) for Make Noise's newest digital hardware. There are no modes or algorithm switches — the Plexus knob continuously varies the number and entanglement of feedback paths inside the algorithm, sweeping smoothly from clean multi-tap echoes through to dense reverberant textures, with a wide 'neither reverb nor echo' middle ground. Size controls the temporal relation between paths (delay-time at low Plexus, room-size at high Plexus), Decay sets feedback intensity all the way to self-oscillation, and Diffuse + Color shape the timbre of the trail. Couple and Skew add stereo image control, an envelope-follower CV Out lets the module modulate itself, and a Send gate enables dub-throw input chopping.

Features

  • Modeless Plexus operation — instant voltage-controlled access to all settings, no mode switching
  • Stereo in / stereo out with mono-sum normalizations on both inputs and outputs
  • Smooth modulation of space, time, and intensity via Size and Decay
  • Voltage control of stereo image via Couple
  • Spatial offset of Plexus, Size, and Color across L/R via SKEW touchpad
  • Texture-shaping via Diffuse and Color
  • Send gate input for dub-throw input chopping (normalled high)
  • Envelope-follower CV Out for self-modulation or sidechain duties
  • Bipolar attenuverters on Plexus, Size, Decay, and Color CV inputs
  • Self-oscillating Decay at its maximum
  • Brand-new DSP code by Tom Erbe (soundhack)
  • Input level meter (5-bar cyan LED ladder)

Controls & Jacks (26)

  • L Audio In
  • R Audio In
  • Mix
  • L Audio Out
  • R Audio Out
  • Diffuse CV In
  • Level
  • Mix CV In
  • Size
  • Couple
  • Diffuse
  • Couple CV In
  • Size Attenuverter
  • Plexus
  • Decay
  • Color
  • Size CV In
  • Plexus Attenuverter
  • Decay Attenuverter
  • Color Attenuverter
  • Send
  • Plexus CV In
  • Decay CV In
  • CV Out
  • Color CV In
  • Skew

How-To Guides

  • Clean Tap Echo
  • Endless Cathedral
  • Morphing Space
  • Dub Throw with Self-Feedback

Explore the interactive Plexiphon panel on BleepDex — tap any control to learn what it does.

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