Consisting of (1)-CS300MH & (2)-CSB215, the Cinema System 400 is a full range, bi-amped screen channel cinema loudspeaker for large sized auditoriums. The System 400 high frequency section features a high performance PRD1000 planar ribbon transducer designed and manufactured by SLS Loudspeakers. The unique design and properties of the planar ribbon driver delivers fast transient accuracy as well as an exceptionally smooth high frequency response. Also the unique properties of the planer ribbon driver delivers more direct sound to the audience even with screen spreading. The mid frequency section uses two high-efficiency 8” midrange drivers. They provide an open and clear sound despite loud listening levels. The (2) CSB215 dual 15” bass enclosures compliment the powerful mid/high section with effortless bass reproduction.