HoRNet SAMP - Dolby Atmos master processor

HoRNet SAMP 1.2.7 is available, this update is free for owners of the plugin and includes:

  • Fixed occasional crash in Logic Pro
  • Fixed random project being reset in Pro Tools

Spatial Audio Master Processor plugin

If you’re a professional audio engineer working with Dolby Atmos mixes, you know the challenge of not having a master bus like in traditional stereo mixes. HoRNet SAMP, developed by Italian engineer Antonio Porcelli, is here to solve that problem.

With HoRNet SAMP, you have access to four classic master bus processors in one convenient plugin: an equalizer, compressor, clipper, and limiter. These processors are linked together, so any changes made to one instance are reflected in all other instances, saving you time and effort.

HoRNet SAMP uses the same technology found in the TotalEQ equalizer, the SyncPressor compressor, and the Magnus MK2 clipper and limiter, giving you high-quality results. The order of the effects can be rearranged to your preference, and the meters and side chain are fed with the combined input of all plugin instances, making it easier to manage your Dolby Atmos mix.

The plugin interface allows you to see all 160 available instances and each instance has a built-in peak meter. You can choose which tracks you want to participate in the virtual master bus, giving you full control over the overall sound of your mix. HoRNet SAMP even reads the track names (excluding the VST version) and hovering over any of the 160 level indicators will show you the track name.

HoRNet SAMP supports mono, stereo and 7.1.2 tracks so it can be used on objects and beds. With HoRNet SAMP, managing your Dolby Atmos mixes has never been easier. Get started today and take control of your audio.

Demo limitation

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.


  • Equalizer based on TotalEQ with up to 6 different bands
  • Compressor based on SyncPressor
  • Clipper and Limiter based on Magnus MK2
  • Input and output gain slider
  • Attack and release times can be synced to DAW tempo
  • Module order freely selectable
  • Interporcess communication between plugins
  • Up to 160 different plugin instances supported
  • Track name read directly from DAW (except for VST)
  • Input meter display for each instance
  • Compressor and limiter side chain selectable
  • Bypass button for each module and global bypass button
  • Online help
  • Intelligent oversampling up to 4x
  • Resizable vector GUI
  • Hardware accelerated GUI
  • Apple Silicon native support
  • macOS (10.11 and later) and Windows (7 and later, OpenGL 2.1 required) support.
  • 64-bit only plugins for macOS and Windows.
  • Audio Units, VST, VST3 and AAX format.

Copy protection

The HoRNet SAMP 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!

I’ve been using the HoRNet SAMP plugin for a few months now and I have to say it has quickly become essential to my Atmos mixing, especially when I’m working from stems.  The problem when recreating a mix in Atmos from stems is that first you have to make the stems sound like the mastered stereo mix.  This usually requires a bit of compression, maybe some EQ, definitely some Clipping and Limiting to get the dynamics the same.  I have to recreate not only the cumulative effects of the mix’s master buss on the stems, but also what mastering did to the sound afterwards.  Then I can begin to break out the parts in Atmos and begin panning and sending to Objects.  With HoRNet SAMP on every 7.1.2 master channel and every object channel, the mix master and mastering matching that I’ve done track everywhere instantly along with any changes that I make as the mix progresses.  No more Copy / Paste setting to multiple plugins on multiple channels!
This is now my first essential plugin for Atmos mixing.
John Hanes - Mixstar Studios

The Weeknd, Taylor Swift, Keith Urban, Eddie Vedder, Imagine Dragons, Elton John

These plug-ins are some of the most bang for your buck that you will find. The SAMP plug-in has been an amazing addition to my Atmos template. It makes taming the overall sound and dynamics of the mix extremely easy. The rest of the Hornet tools are highly useful and continually helpful in many situations.
Justin Merrill

Laura Karpman, Jennifer Lopez, Paloma Faith, Earth, Wind & Fire, will.i.am

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2 thoughts on “HoRNet SAMP

NG says:

As apple music (may) require dolby atmos for new tracks (soon), here is the solution for reasonable price.

Kinghand.Lee says:

It saves my Atmos mix by providing the possibility the mastering compressor. It makes the atmos mix has the same sound texture as stereo mix while also has the Atmos space!
But unfortunately, It doesn't have multi channel version, So can't be applied to surround reverb tracks and bed. Hope you guys can improve It.

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