Digital Room Correction For Speakers

I wouldnt mess with EQ. If you have room modes you can solve this by adding mass to the room. An example would be to get concrete forms and fill them with sand. Books or albums can also help. Find a room mode calculator to see where your problem areas lie and then fix it in a way that will not detract from your sound. 

Please take a moment to research how these EQs work and then ask yourself if this method sounds like something that makes sense and will not degrade your sound. Look in detail at how these EQs address the offending frequencies from the ones that dont have problems and how subsequent changes are made. A bit of research and a small amount of money will fix the problems permanently and without any downside. I think that the problem is not the equipment but how the equipment interacts with the room.