It should be noted that few of us live in optimum listen room configurations. Compromises will probably me made. A worthwhile investmate is to buy the software, microphones, etc. to perform room sweeps, make the plots and find out where the null conditions are in your room (a $200 - $300 investment, consider a group buy and shared ownership). You can chose to rearrange equipment and furnture, run the tests again and the decide on a course of action. I like the use of acoustic panels to tame some of the problems. EQ, can help as Klaus noted. I tend to avoid adding another component in the signal chain. I am not saying EQs can't help, but they will not solve all problems. And again it's a matter of taste. The newer receivers with the Audacy software do a good job in few places that I have heard them.
Most folks on this forum, from what I have observed do not take room measuremts when setting up their room. Many are too quick to add a sub, or flip and amp, or add an EQ. I suggest trying to determine the room acoustics, study, understand them and evaluate options for making room corrections.
Good luck!
