CF118 is a single 18-inch low frequency compensation speakers! Enclosure using thicker paint, consists of 18 mm thick birch plywood, the front cabinet with 1.5 mm thick metal iron net protection, and equipped with standard support jack and ergonomic handle, for handling and installation is very easy, the internal unit is the aging time experiments, crossover network with electronic protection circuit, can guarantee the speaker under the harsh environment for a long time stable jobs easily.