Finally finished the latest round of tweaks.
At the bottom are stands made of African Mahogany that sport 1-1/2" cones underneath, lifting the speakers 2-3/4" off the floor and tilting them back approx. 2 degrees. Also new are the grilles using a plastic grille frame kit from Parts Express and "Burled Wood" print fabric I found at Hancock Fabrics.
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Attachment 2049
I also added another pound of "Acoustistuff" to each, bringing it to four pounds on each side. Killed that last bit of annoying internal resonance.
Dave