Thanks for the explanation, your speakers sound good. It's been my experience that what works on paper doesn't always work best once put to use. The paper is a great place to start but the difference in a venue can require some refinement for the best design. I'll make changes in the size of the box, the tuning frequency, rigidity of the cabinet and bracing. Crossover work should also be worked on too. Sometimes changing the frequency point or the slope a little bit can make very nice improvements. Attenuation of the upper frequency horn drivers is probably the first place to get improved sound.