The Bogen FMH15T is a flange-mounted, high intelligibility, reentrant type loudspeaker. Its sturdy, weatherproof, vandal-resistant, all-metal construction is ideal for indoor and outdoor use in industrial plants, warehouses, schools, construction sites, transportation terminals, and recreational areas. The Model FMH15T has a built-in, variable impedance selector switch for matching the speaker power requirements to a 70V or 25V constant-voltage line. Screw terminals make installation fast and easy. Accessory flush- or surface-mount enclosures, heavyduty cast aluminum grille and adapter ring are available to complete the installation of this unique speaker. Field maintenance is accomplished using a self-aligning, field replaceable diaphragm. • Excellent voice intelligibility and efficiency • Flange-mounted, reentrant type loudspeaker • Weatherproof design for indoor or outdoor use • Vandal-resistant, for applications in hostile environments • All-metal construction with black enamel finish • 15 watts max. @ 70V or 25V • Weather-sealed variable-tap impedance selector switch • Power handling is 0.9, 1.8, 3.6, 7.5, or 15 watts for 70V systems and 0.125, 0.25, 0.5, 0.9, 1.8, 7.0, or 15 watts for 25V systems • Screw terminals for fast and easy installation • Self-aligning, field replaceable diaphragm for easy field maintenance • Select flush or surface mount enclosure for installation (each sold separately) • Heavy-duty cast aluminum grille and adapter ring for installation (each sold separately).