While there are varying opinions of the Bose L1 there something that can't be ignored. Speaker arrays as the Bose L1 uses are the future of PA speaker systems. Go to any major concert now and the PA will use a speaker array. The advantage is the mix sounds good anywhere in the room or arena. It maybe that the Bose L1 array could cover the midrange frequencies more if a larger speaker size was used for the array. But the success of a speaker array over conventional systems is obvious.

http://www.performing-musician.com/pm/feb09/articles/technotes.htm?print=yes