Great job Gary. I like the idea of the lightweight tower housing all of the satellite speaker drivers. A weight of 4 pounds is incredibly low!

I agree with SemiLive regarding the angle of the speakers. Even though they are small drivers, they are quite directional and the coverage benefits dramatically with a bit of angling. Also the projection and balance (sub/satellites) seems to improve when using Stereo x 2 (4 speakers only).
http://www.synthzone.com/ubbs/Forum37/HTML/011419.html

The angles can give it nearly 180 degrees coverage and an even soundfield. But obviously much less elegant to the eye than your compact solution!

Once again - top work.

Mark