Presenting a better way to reach your audience, and an easier way to carry and set up your PA.The BOSE L1 Model 1S (L1 M1S) system combines the portability of the L1 Compact system with the performanceof the L1 Model II system, plus you get the B2 bass module.L1 Model 1S (L1 M1S) SystemIt is engineered with an articulated line array to deliver 180-degree coverage for audiences of up to 300. This12-speaker line array produces consistent tonal balance throughout the venue with less drop-off in SPL over distance than conventional loudspeakers. It consists of only four lightweight pieces, so it's easy to carry and sets up and breaks down in minutes. The materials are specifically constructed to meet the travel and performance demandsof solo musicians, mobile DJs, bands and general PA applications. The L1 Model 1S system can be configured to a performer's preference with the B2 bass module for greater output. In addition, the integrated ToneMatch port provides a single cable digital connection to the optional ToneMatch audio engine, which maintains the tone of specific instruments and microphones. Focus more on your music and less on your gear, with the L1 Model 1S system from BOSE.B2 Bass ModuleThe BOSE B2 bass module is a high-performance flexible bass solution designed for L1 Model 1S and Model II systems. It features two 10' high-excursion woofers mounted into a rugged enclosure.For additional flexibility, the B2 includes a rear panel switch that allows for higher or lower bass levels to be selected based on application or personal preference. Proprietary BOSE technology in the L1 systems automatically senses the switch position of the B2 and provides the proper equalization and power. Interlocking end caps allow up to