Here's a post I saw from a 2-year user of 2 Bose systems (for what it's worth):


As regards connecting up two systems, I prefer to run my two L1’s in stereo. I find that they give a much better sound when used in stereo.

Conventional PA systems are (in my opinion) better run in mono because the audience members seated on the left hand side of the room can’t hear the music coming out of the right hand speakers (and vice versa). So stereo sound is all but lost when using a conventional PA in a cabaret room type environment.

However the Bose L1 disperses the sound around so incredibly well, that you CAN run two of them in stereo and everyone, no matter where they are seated in the room, will hear everything. Stereo works really well when using two Bose L1’s and sounds fabulous.
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Live: Korg PA4X/Bose L1 Pro 8/Senn 935

Studio: Korg PA4X/Kawai MP7SE/Tascam DP24SD/Sony C80/AGK 214/ATEM Mini Pro switcher/