Speakers sound too bright.

I just bought a new pair of Martin Logan 60xti speakers.  They are too bright and fatiguing.  I would like to avoid returning them.  I've tried toeing them in and out.  I cant get them further than 1ft away from the wall (back of speaker to wall).  I have a about 1-2 hrs of play time on them.  Not sure if break in will help settle the upper frequencies down. Any suggestions...?