Broadway on the Bodensee

Sound designers for large musicals typically have plenty of challenges: not enough time allocated for sound rehearsal, automated lights that sound like jet engines, inconsistent singers and musicians, and wireless mics that are (unfortunately) governed by the laws of physics. To that, let's add a playing area approximately 215' across and 200' deep, where the average distance from a performer to an audience member is about 150'. Next, add a mandate that speakers cannot be seen. Now let's add