Cotorro Audio releases free P1E Resonance Unit Harmonic Exciter Plugin (VST3/LV2)

Cotorro Audio has announced the release of P1E Resonance Unit (P1E-RU), a free multiband harmonic exciter plugin.

P1E-RU uses three independent saturation engines to add harmonics and density to specific frequency ranges. The plugin allows for robust tonal shaping while maintaining phase-perfect alignment thanks to its Linkwitz-Riley crossover architecture.

P1E-RU features fixed 2x oversampling for a smooth high end. An output control affords you between -12 dB and 12 dB of gain. All three bands can be individually mixed in for a ton of tonal flexibility.

Frequency bands:

  • Low: 20 Hz to 350 Hz.
  • Mid: 350 Hz to 2.5 kHz.
  • High: 2.5 kHz to 22 kHz.

Saturation models:

  • Analog. Classic tape harmonics. Works swimmingly for the master bus.
  • Vintage. Tube-like plentiful even harmonics. Makes your vocal tracks shine with detail.
  • Digital. An aggressive model with harsher transients. Designed with EDM in mind. Adds punch to stale acoustic kick drums as well.

Use cases:

  • Master bus glue (in subtle amounts).
  • Electric guitar, bass, and acoustic drum enhancement.
  • EDM beat intensification.
  • Vocal thickening. Bring voices closer instantly with a mere touch of mid-range harmonic boosting.

The plugin has been verified by Pluginval at strictness level 10.

The P1E Resonance Unit is available as a free download for Windows VST3 and LV2 here.

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