Dipole Asymmetry

I have an uneven front wall with my Magnepan 3.7i's.  The left speaker is 9' away from the wall and the right speaker is 7'.  I don't think there's a noticeable difference, but it could be because they're far enough away from the front wall already.  I was surprised that I could tell the difference in sound quality when the speakers were 7' and 5' away versus 9' and 7' though.  

@sleepysurf Good suggestion. 
@cleeds So Janzen closes their cabinets and Sound Lab recommends a "Dead End/Live End approach that absorbs the rear wave. Who recommends your preferred "Let the rear wave bounce approach" besides Bose? Cheers,
Spencer 

If you have one speakers wall 4' behind it and the other 15' behind it your going to have an issue . These guys were fretting over having a rack behind one speaker  and not the other . Ill take a stat 2' from a back wall over boxed speaker 2' away any day . If panel sound is your thing you will live with whatever compromises might arise in your room . I have since moved from the room my system shows here on agon and one speaker has a wall of diffusion and the other aims right into a floor to ceiling corner bass trap . Still i am getting optimal sound . 

If it were me, I'd find another place for the rack...think out of the box, it would be worth it.  I don't see you compromising the Ayre's excellences.

sbank

Who recommends your preferred "Let the rear wave bounce approach" besides Bose?

You’re obviously being facetious, because Bose doesn’t make a dipole. But, to answer your question:

Infinity (of yore)
Martin-Logan
Genesis
King Sound
Polk Audio
Kef
Quad.

Then, there are the manufacturers who try to imitate the dipole sound, such as those who make bipole speakers. You can look that up for yourself. There are also posters in this thread who concur that the rear wave is an inherent - and useful - part of dipole design.

Any dipole speaker manufacturer who wants to dampen or eliminate the rear wave can do so by using construction that will block the rear wave. Simple.