The E 12P is a high performance large format foreground and background sound reinforcement system designed for permanent installation and portable use in a wide variety of acoustic environments. The E-Class 12P utilizes a newly developed 12 inches low frequency transducer, and 1 inches compression driver. The driver coupled to an advanced flare rate horn that provides a rated included angle coverage pattern of 90 degrees in horizontal axis and 60 degrees in the vertical axis.