The Saturation knob plugin, as its name implies, is an effect that adds character to your audio files by fattening them through analog-style saturation (adding harmonics). It’s great for enhancing drums and bass lines, and it can even give sparkle to vocals (if used appropriately or creatively).
Saturation Knob is one of the most straightforward saturation plugins available; its name tells it all. There is only one major Saturation dial on it. As you turn the knob clockwise, it moves from ‘off’ to ‘adding a little color, to ‘completely distorting’ whatever signal you’re feeding it.
The massive central ‘SATURATION’ knob adds saturation, and it also has three modes or types of Saturation character: ‘Keep High’ has a saturation and distortion quality that is primarily focused on the bottom end (low frequencies) while keeping the high frequencies intact.
‘Keep Low’ is the polar opposite, with a more concentrated saturation/distortion character in the high end (high frequencies) while keeping the red frequencies relatively pure, whereas ‘Neutral’ would apply saturation to the full frequency spectrum without a specific strategy.