Hi Matt, believe it or not, I had completely forgotten that Muzik in your room were overloading the bass... Perhaps I'm starting to misfold proteins in the brain *grins!*
Regardless of speakers brand and model, both Kevin Wolff of Vienna Acoustics North America (VANA) and Rod Tomson of Soundings in Denver assert that almost any room can achieve excellent sound if speakers placement is performed by a professional with the VA/Sumiko method.... Variously called Master, Masterset, or Master Set. The process is unfortunately not documented particularly well in the wild, but is sold as a service by some Sumiko and VA dealers like Soundings... It certainly worked fantastically in my own loft to eliminate some residual shoutiness and mid lower bass overload... On the other hand, my loft is essentially 16 x 30 ft or so, and is far from approximating a square. Furthermore, the great success in my loft cannot imply that a generalization is a safe bet.
On a different track, is it possible that your now more reflecting floor might be a contributing factor to the Dynaudio shoutiness?
G.