Bob, you can get the EQ "right" at any listening position, but if you left the IM distortion in then it'll sound like CRAP, no matter what speaker you use. Go to any audio show and you'll hear it in room after room. (Harsh, edgy, grating sound from really good components).
Like you said, "You paid for the speaker, why not get all you can from them?". Until you minimize IM distortion you can't enjoy your system to the max, no matter how flat the EQ. My method is set the speakers first, for the best combination of low IM Distortion and minimal bass nodes, then start addressing any problems that remain with room treatments and/or active EQ.
Dave
Like you said, "You paid for the speaker, why not get all you can from them?". Until you minimize IM distortion you can't enjoy your system to the max, no matter how flat the EQ. My method is set the speakers first, for the best combination of low IM Distortion and minimal bass nodes, then start addressing any problems that remain with room treatments and/or active EQ.
Dave