The theme of my enclosure design for this speaker is simple-spheres. I chose them for their visual appeal and the unique design element that they add to the overall look of the speakers and system. The front speakers use five spheres per channel (four woofer spheres and one tweeter sphere per speaker), and the rear speakers use three spheres per channel (two woofer spheres and a tweeter sphere). The overall size and configuration of the LCR speakers was constrained by the dimensions of the television-in this case roughly 28 inches tall. To have room for the supporting base and spheres, the largest practical diameter of the spheres was 5". Using approximately ½" thick walls yields a net internal volume of roughly .015 cu. ft. (.4 liters) per sphere. Supporting and connecting the spheres are curved steel tubes. The steel tubes provide a very stable support, while at the same allowing all of the wires to be neatly concealed and routed into the speaker base. The base is where the wiring comes together and the crossovers are located.