Users of PreSonus Studio One and Pro Tools are already familiar with Softube’s Saturation Knob, their single-knob model of output distortion. It has been designed to fatten up basslines, add shimmer to vocals, or mangle drums. Other than the knob, the plug-in offers a switch to choose from high, neutral, or low-end focused distortions. Softtube has now released this plug-in for free for users of any audio software.











