BaxterEQ

Powerful baxandall EQ plugin. M/S-Mode is fantastic and you also can adjust Mid and Side volume without even applying the shelves or cuts.

The only reason why I reduce one star and I can imagine this plugin isn't way more popular is because it is kind of hard to read the parameter values and specific elements are not easy to distinguish from each other, even if you get a little more familiar with the plugin.

If the developer could maybe enhance the GUI in an updated verson, I guess this plugin would be used by much more people.