Bose L1 series portable line array systems employ an approach to live sound that differs from other sound system manufacturers. Using proprietary Bose® technology, L1 systems combine PA and monitors into a single, highly portable unit. The amplified sound spreads out more evenly across the stage and into the audience, and the volume level drops off much more slowly than with a conventional speaker. Lightweight, interlocking components are easy to transport and set up and the distinctive vertical loudspeaker enclosures don't require separate speaker stands. The loudspeaker can be positioned behind or to the side of the performer, allowing the performer to hear what the audience hears.