2nd Sense Audio has released a free EQ parametric EQ plug-in that supports AAX Native as well as the usual AU and VST formats featuring seven fully parametric EQ bands, as well as adjustable-slope HP and LP filters and what 2nd Sense Audio describe as "a straightforward user interface".
The EQ gain can be varied from -60 dB to +15 dB for each band. The asymmetry is quite unusual but enables deep notches to be set up. However, the spectrum analyser in a free EQ plug-in does make this free plug-in stand out from the crowd.