The P Audio E12-800CA is a high output low frequency transducer. The E12-800CA is an upgraded design that features many of P Audio's new technologies and performance upgrades. The 12 inch (305mm) diameter piston will produce extremely high sound pressure levels at low frequencies and is ideal for high level full range response in both live sound and recorded music venues. The operating bandwidth of the E12-800CA is 50Hz to 3500Hz. The transducer uses high energy ferrite magnetics to achieve a very high acoustic output to weight ratio.