The commission picks the most compactsolution, according to some simple criterion. (Say, add up the miles of boundary lines, giving any segments that track municipal borders a 50% discount, and go for the shortest total.) The mathematical challenge might inspire some gifted amateurs to weigh in.
The speakers use a one-piece aluminum casing that optimizes wave propagation within the cabinet for more fidelity in its sound reproduction, while the higher stiffness ratio offers a more compact loudspeaker solution.