Bose Panaray columnar line array loudspeakers provide wide horizontal coverage, with narrow vertical coverage, making them an excellent choice for small to medium-sized acoustically demanding spaces that require high speech intelligibility. As with all Panaray models, the columnar line array models feature full-range driver arrays, eliminating the need for tweeters and crossovers, to provide unsurpassed reliability and natural vocal clarity. The unique modular design allows multiple MA12, MA12EX or MSA12X units to be vertically stacked to provide increased sound levels and coverage distance.