ROOM ACOUSTIC ADVICE NEEDED

I have similar issues and just purchased a Lyngdorf Room Perfect system. It records room characteristics using a high frequency and low frequency sounds and then "equalizes" the sound without distorting the signal. It made a huge impact for me without moving a thing or treating the room at all. Neal at Sound Science in Castlerock Colorado sold it to me if you don't have a local dealer.

In addition, although it is counterintuitive, try briefly a radical move of listening position to within 2 to 3 feet in front of the plane of your ribbon tweeters. You didn't mention brand of speakers. Relative position of speakers on the front of the speaker may render this trial worthless.
Sometimes, there is a surprising coalescence by the ears and brain into a coherent three dimensional nearfield window into the performance. Maybe it is successful in certain cases partly by reducing first reflection point issues.
Just a quick movement of listening position is worth a try. I know of two such full range dynamic speakers with ribbon tweeters where this has been grudgingly adopted as a useful compromise to cope with room or decorator constraints.
Of course, while enjoyable, this will not be identical to the listening experience that you originally were seeking.

Thank you all for your sage suggestions. Listener57, I will try moving my speakers up closer (BTW I have the LSA10, formally known as DK Design XDreams.) Mmike84, I'll look into the Lynngdorf for possible future addition. Bar81, I noticed something like what you suggested right here on audiogon (@ $110 each, a definite possibility.) So all of you so far have indeed helped me much already!

Realtraps has a great informative website, study it and you will know wat to do. You can call them if you still have questions