cassp,
Thanks for posting the link to the Bose Musicians Community Message Board. There is some very interesting information there provided by Bose engineers. And by registering on that forum you have the opportunity to ask questions as well.

For someone interested in reading some general technical discussions on the use of mono vs. stereo for live performances, you'll find that there. For someone wanting to know where they might go to hear the new Bose system in use for live performances, that is published there as well.
Paul C.