First the box size I stated would be the absolute max that would fit. A smaller box is what I had in mind. But on the other hand, the shelf is 42" wide and anything that has to sit in the middle, more or less takes the whole thing, as far as 19" sized components go. The splayed arrays look good. I will give that some testing with the speakers I had planed to use for the rears.
In the mean time my receiver has craped out. I have it on the bench but I am having a hard time finding the tubes.
One more question. How do I model 2 or more identical drivers? Do I plot for 1, then double the volume or do I somehow add the driver specs? Or? As you can see this is not my area…John