HoRNet Harmonics Pro

Control up to 10 harmonics of excitement

HoRNet Harmonics Pro is an exciter, saturation and clipper processor. 

It’s the extended version of our famous free plugin Harmonics and it works by adding overtones (or harmonics) to the input signal. You can add up to 10 different harmonics and of course you can choose the level and phase relationship of each.

This is the core of the plugin but to make it more versatile and interesting we added: pre-emphasis and de-emphasis filters, a soft clipper and an hysteresis module that allows harmonics to behave like a tube a transformer or a magnetic tape.

The pre emphasis and de emphasis filters allow you to add equalization before the  harmonic exciter and clipper processing and the opposite eq curve after (you can add up to 4 filters to the eq) this allows you to change the saturation point of different frequencies giving you a lot of flexibility in shaping the sound.

The hysteresis simulation gives a sort of “memory” effect to the saturator, if you hit the plugin with a high level signal the hysteresis produces a bias offset that fades slowly when the signal is reduced in intensity, this effect allows you to get the typical sound of tubes, transformers and magnetic tape. 

Of course we have given Harmonics Pro input and output knobs and the link option between them so when you rise the input the output is adjusted accordingly to always keep the same level, on the harmonics view there is also a master fader which increase or decrease the harmonics levels to reduce the effect and create different overtones content between the exciter and the clipper.

Finally, we also have separate dry and wet knobs for parallel processing.

To guarantee the best possible quality we added our intelligent oversampling to the algorithm so that the oversampling amount is chosen depending of your sample rate if it’s lower than 192KHz.

The user interface is of course completely vectorial and hardware accelerated (using OpenGL or Metal) and it can be resized at will so it looks good on every monitor and screen size.


The demo is fully functional except for the fact that every now and then it will silence out, you cannot save parameter values with your session and the plugin will not respond to automation coming from the host.


  • Up to 10 different harmonics can be added to original signal
  • Master control for harmonics level
  • Soft clipper
  • Pre emphasis and de emphasis eq with up to 4 different filters
  • Hysteresis simulation (transformer, tube and magnetic tape behavior)
  • Input and output level can be linked to keep level constant
  • Separate dry and wet controls
  • Intelligent oversampling that allows the plugin to always work internally at 192Khz
  • Vector user interface which is sharp on every resolution
  • Freely resizable user interface
  • Apple Silicon M1 support
  • macOS (10.11 and later) and Windows (Vista and later) support.
  • 64-bit on Mac and Windows.
  • Audio Units, VST, VST3 and AAX format.

Copy protection

The HoRNet Harmonics Pro has no copy protection, we don’t believe in copy protection, they are always cracked and they are annoying for the users, we all know you are not going to give away the plugin on the internet…

So simply download the plugin and enjoy your recordings!

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