It's your thread, derail it if you want I say. There are some threads/articles around here on use of minidsps, too.
The plugin is separate; costs $10
https://www.minidsp.com/products/plugins/2x4-hd-plugins/2x4hd1-detail
There were multiple plugins for the other units depending on what exactly you were doing with the unit. (removed bit about power, it's included with the
HD).
Many eschew eq because they like their speakers and room to sound whatever that combo sounds like natively. Don't ascribe to that myself, eq has come in quite handy for my needs, but it's especially important for the
sub-Schroeder frequencies.