The Bogen SP308A Horn Loudspeaker is a compact, high intelligibility, reentrant type loudspeaker, designed for one-way or two-way sound and communication systems. Its sturdy, weatherproof, all metal construction is ideal for indoor and outdoor use in industrial plants, warehouses, schools, construction-sites, transportation terminals, and recreational areas. Screw terminals make installation fast and easy. The SP308A Horn Loudspeaker has an 8-ohm impedance.