Bose L1 systems are complete, portable PA systems that deliver clear, balanced sound and set up in minutes. A proprietary articulated line array delivers 180-degree coverage, consistent tonal balance and less SPL drop-off than conventional systems. Models are available for audiences of 100 to 500. The line array's wide coverage and high resistance to feedback allows you to position the system behind you and hear what your audience hears. The lightweight components connect easily without the need for speaker stands and are built to withstand the rigors of the road.