T-RackS QUAD COMP (Download)
Multi Band Compressor

As suggested by its name, Quad Comp is a multiband processor that incorporates up to four fully featured compressors of the Opto type, each one operating on a separate, user-definable frequency band.
Each compressor has a full set of controls allowing to tailor the compression on the band it`s applied on to achieve the desired result.
The flexibility of this processor is also augmented by the slectable slope of the filters which can be as broad as 6 dB/Oct   as steep as 24 dB/Oct, for maximum separation.
Even at the steepest slope the filters used in the Quad Comp always sound natural   musical, so that the processing applied to each band doesn`t suffer from phsing issues.
The ability to compress each band separately allows you to tame unwanted peaks in a selected portion of the audio spectrum, only if   when a set threshold is exceeded. The possibility to set compression ratio   time constants independently for each band gives you extreme flexibility   precision. Solo   mute buttons make it easy to audition how the compressor is working on a selected band.
Being of the Opto type, the compressor on each band have a smooth compression, very transparent   without side effects, but more aggressive results can be achieved if the threshold   ratio are set accrodingly.
Unprocessed
Processed
The use of a this processor is very wide: combining gain reduction with frequency control it can practically act like a “dynamic EQ” as the gain reduction applied on each band depends on whether the level for that frequency exceeds the set threshold.