The CS1290C is a high quality single 12” two-way passive design. It serves as an overhead surround sound source module for larger auditoriums. The CS1290C high frequency section features a high performance PRD500 planar ribbon transducer designed and manufactured by SLS Loudspeakers. The unique design and properties of the planar ribbon driver allows for a very clear delivery and transient accuracy even at the limits of its performance. The PRD500 is contained within a 90 degree die cast aluminum waveguide rotated so that the 90 degree pattern is in the vertical plane.