Sonoris Mastering Equalizer
Protection Type
Serial Number (no Dongle required)
Windows Requirements
  • Host application compatible with:
    • AAX Native plugins
    • RTAS plugins
    • VST plugins
  • Windows 7, 8, 10
  • 32 and 64 bit
  • Up to 3 computers
Mac Requirements
  • Host application compatible with:
    • AAX Native plugins
    • Audio-Unit plugins
    • RTAS plugins
    • VST plugins
  • Mac OS 10.7 and higher
  • Intel Processor
  • 32 and 64 bit
  • Up to 3 computers
A parametric equalizer
The Sonoris Mastering Equalizer (SMEQ) is a parametric equalizer in VST, VST3, AU, AAX and RTAS format for Windows and Mac. It has selectable linear phase or minimum phase operation per band. The plugin is suitable for mixing and especially mastering and features 7 bands, including lowpass, highpass, peaking and shelving filters.

The SMEQ can be used to enhance or correct difficult material like vocal or instrumental soloists and groups, orchestral recordings and complex mixes, without introducing any unwanted coloring. The linear phase implementation of the SMEQ ensures a transparent character and just boosts or cuts a frequency range without adding a "sound". It doesn’t smear transients or create mud, nor does it alter the imaging and depth information of the original sound. This way it is possible to boost or cut more than with a conventional equalizer without any of these negative side effects.

The linear phase algorithm of the SMEQ is based on a technique called “backward-forward filtering”, until now only implemented in some expensive high end equalizers. The main advantage of this technique is that IIR filters can be used instead of FIR filters, the latter is commonly found in linear phase implementations. IIR filters are known for their more analog kind of filtering and are also more efficient than FIR filters. The filters used in the SMEQ are actually the same as in the Sonoris Equalizer and also have correct gain up to Nyquist.

Every band can be set up to process stereo, L , R or (M)id and (S)ide channels. Processing the mid or side information can be very useful in certain situations. In mastering for example, it allows you to enhance a centered vocal while leaving the other instruments untouched. Or to center a bass without losing the stereo imaging of the rest. Adjustment of is made easy because the SMEQ allows for monitoring the LR or MS channels.

The plugin has a large graphical display that shows exactly what you get. The size of the plugin can be changed to your liking by dragging the lower right-hand corner.

The Sonoris Mastering Equalizer has an automatic as well as 2x, 4x or 8x manual upsampling mode. When upsampling, the SMEQ has an even more accurate response, especially at the higher frequencies.

Product Features

  • 7 band parametric linear phase equalizer
  • Selectable linear phase or minimum phase operation per band
  • Lowpass and highpass filters up to 48 dB/octave
  • Peaking and shelving filters
  • Stereo, L, R or MS processing and monitoring
  • No pre-warping effects, that is, correct response up to Nyquist
  • 2x, 4x, 8x or auto upsampling for an even more accurate response
  • Soft Engage technology to prevent switching noise
  • Mousewheel support
  • A/B comparison
  • Large graphical display with dragable handles for maximum control
  • Spectrum analyser
  • Three zoom levels
  • Scalable user interface
  • High resolution level meter
  • Full automation possible
  • Settings can be saved
  • 64 bit internal resolution
  • Windows 32/64 bit VST, VST3 and AAX versions
  • Mac OS Universal Binary 32/64 bit VST, VST3, AU and AAX versions
  • Mac OS Universal Binary and Windows RTAS versions
  • Easy Online License Activation
  • USB drive based license activation for offline computers


OS : Mac OSX Mac OSXWindows Windows
Formats : AAX NativeAudio-UnitRTASVST
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