Rezonator

Rezonator changed my life. And my music. (for the better obviously).

In all seriousness, this plugin is well worth the price. I highly recommend Rezonator to anyone looking for a unique way to add extra flavor to their tracks. I've been using this plugin for well over a year now and have no issues. CPU usage is very light, even with several instances.

Grab yourself a copy, you will not be disappointed. It comes in handy very often, and there are multiple use cases for it, it's not only useful for 'color bass'.