I agree with misstl, Maggie 3.6s are a lot of speaker for your room. So, making the room ’seem’ bigger acoustically would be the logical first step. That means acoustical panels. They will reduce the level of reflected vs. direct energy and in doing so increase the Critical Distance, that point at which direct and reverberant field levels are the same. My personal preference is Acoustimac for construction quality, fair pricing, and a wide selection of fabric options. Their Home Theater Package 1 would be a great place to start in your room.
Don’t believe that spending more on tweakier panels is money well spent. Inside all of them is either Corning Fiberglas 703/704 or Rock Wool or a paper based material called Eco Core. Rock Wool is the standard works just fine. Much as I believe ceiling panels area Very Good Thing, because Maggies are dipole radiators, I would consider trying 2 of the 6 panels or mounting the bass traps behind the speakers to help control reflections from the back wave.