lkjb Plugins has released a flat-curve Tilt EQ where only the pivot frequency and max gain can be set. SeeSaw is designed to help you balance a track or mix. It can also process the mid or side signal instead of full stereo with stereo tracks.
An analyser which can be switched between input and output helps finding the correct parameters. The analyser is independent of the signal’s level and only shows the spectral distribution. When used in mid or side mode it will show the according signal’s spectrum.