The Vandersteen 11-band EQ only effects frequencies below 100 Hz. Knocking down the big bass humps really improves midrange transparency, though. They just added a subwoofer to their line, the Sub 3, with the 11-band EQ, so you can add this to any speakers now.
I’ve been using the free DRC-FIR software for digital room correction with excellent results. I use Room EQ Wizard and a Umik-1 USB mic for the room response measurements. DRC-FIR produces a filter file from the room measurements that can be used with a convolution engine in a digital music server like Roon or JRiver (I use the Logitech Media Server BrutefirDRC plugin).
http://drc-fir.sourceforge.net/
https://www.roomeqwizard.com/
https://wiki.jriver.com/index.php/Convolution
I’ve been using the free DRC-FIR software for digital room correction with excellent results. I use Room EQ Wizard and a Umik-1 USB mic for the room response measurements. DRC-FIR produces a filter file from the room measurements that can be used with a convolution engine in a digital music server like Roon or JRiver (I use the Logitech Media Server BrutefirDRC plugin).
http://drc-fir.sourceforge.net/
https://www.roomeqwizard.com/
https://wiki.jriver.com/index.php/Convolution