One of my site readers caught something on the tickets to Nikon: the Musical (see below). In fine print you'll see the words "In the rare event that you're sitting on the left side of auditorium and can't hear our 51-speaker sound system clearly, please send us an audio recording that demonstrates the problem, then send your ticket and recording to us via registered mail at your expense so that we can review it before deciding whether or not to make any adjustments." Simple solution: only sit in the middle of the theatre.