Patented BroadBeam Ring™ waveguide technology delivers a consistent dispersion pattern for maximum coverage area per speaker. One 12inch treated fiber cone with a cloth surround concentrically mounted to a 1.375inch mylar compression driver with waveguide. High-SPL, high-efficiency system for the sound reinforcement and PA markets. An impressive 2 cubic foot, ported ZeroReflection™ enclosure for added bass response, rigidity and optimal sound reproduction. Easy-access five-position tap switch with 25-, 70.7-, 100volt and transformer bypass position. High efficiency for reduced amplification costs and max output for distributed or 8ohm systems. Low insertion loss 150watt transformer. UL 1480 (UEAY) and 2239 (hanging hardware) approved. Included accessories: impact-resistant steel grille, hanging hardware, Euroblock connector, terminal weather boot.