Ever the Meldaproduction fanboy here, (the free) MEqualizer does 36, 48 and 60. After you right-click on the filter node to pull up its characteristics panel, you'll see a line of buttons for "slope."
Unless it has to be a dynamic EQ?
I've learned that whenever I need something from a plug-in to check the Meldaproduction free bundle first because it might just be in there somewhere in a menu behind a button I haven't clicked on yet.
3.4 GHz i7-3770, 16G RAM, Win 10 64-bit, ATi Radeon HD 5770
2X PreSonus Firepods, Event 20/20's, Alesis Monitor Ones, Alesis Point Sevens
Mixcraft Pro Studio 8.5, Cakewalk by BandLab