The model MS112 is a full range system that provides unprecedented bandwidth and maximum SPL in a single system package. With nominal 85 degree coverage pattern, systems can be splayed together for additional coverage and/or SPL requirements. The OASR (Optimized Aperture Symmetrical Radiator) provides enhanced dispersion control in both planes, while maintaining the principle of Optimized Aperture, low distortion and clear transient highs. JBL transducers combined with an optimized passive network, incorporating SonicGuardTM, provide reliable performance for demanding applications. The unique profile of the enclosure, in conjunction with the OASR, enables this system to be used in a vertical or horizontal orientation. For either a low profile ceiling installation, or permanent floor monitoring the system can be used horizontally. In the vertical orientation the side angles allow for a tight cluster arrays, or close wall mounting. The rugged plywood construction of the enclosure, along with a textured DuraFlex finish and a heavy duty zinc treated steel, foam-backed grille and treated cones enable this Marquis Series enclosure to meet with environmental test specifications. Designed for permanent installation, the MS112 is part of the Marquis Series, a complete range of installation loudspeaker systems.