The Oxford Inflator is a unique plugin on this list. The point of its saturation isn’t to be audible, but rather to increase the perceived loudness of an instrument without increasing the actual volume.
There’s some magic in this plugin that I don’t fully understand. If I’m mixing a vocal that I can’t keep from hanging around in the background, the Oxford Inflator brings it forward nearly instantly. It’s a fantastic problem solver.
With Oxford Inflator: