Plugin Boutique is offering a 30% discount on selected Voxengo plugins through the month of February.

The offer includes the VariSaturator two-band saturation effect, Polysquasher mastering compressor, OldSkoolVerb Plus reverb, and the popular SPAN Plus real-time “fast Fourier transform” audio spectrum analyzer.

SPAN Plus provides you with a very flexible “mode” system which you can use to setup your spectrum analyzer preferences. You may specify Fourier block size in samples, FFT window overlap percentage, spectrum’s visual slope. Beside that you can choose to display secondary spectrum of a desired type (e.g. real-time maximum, all-time maximum). Spectrum can be smoothed out visually for an easier examination.

The plugins are on sale starting from $27.96 USD until February 28th.

More information: Voxengo