Agree with Kr4 - expect some improvement from equalization and/or signal processing but acoustic problems often call for acoustic solutions, especially if you're looking for improvement over a wide range of listening positions.
For instance if you have audible slap-echo at the listening position, then you have an acoustic problem that calls for an acoustic solution. You'll have to treat several square feet area on at least one room surface.
In addition to your room, your speakers are part of the equation - in particular, their radiation pattern. What speakers are you using?
Duke
dealer/manufacturer
