Update: Acoustic panels are finally up! Verb and echo is almost Zero! The music is directed right at me now. It was a labor of love and PIA. I was hoping the centered color accents would complement the curtians and rugs instead of just a plain row of black. I will be using Sonarworks to calibrate everything. I still have much more decorating to do on the sides and back walls but that is coming for Xmas. I will also look into left and right bass traps.
just my personal opinion & experience:
Curtains often only have the effect of filtering a bit of high end and possibly one narrow band, so instead of somewhat clean reflections, you get muffled ones - not really an improvement
Choosing an EQ to adress issues in the time domain is kind of a band aid anyway, but after all the work you put into the absorbers it almost seems like an afterthought.
Bass traps will be a great improvement I'm sure.