Bi-Directional Reentrant Horn Loudspeaker. Twin reentrant horns for bi-directional projection. High intelligibility and efficiency. Ideal for both one-way and talkback paging applications. Weatherproof. Sturdy, all-metal construction. 30 watts max. at 70V operation or 15 watts max at 25V operation. Tap settings for 70V: 30, 15, 7.5, 3.7, 1.8 watts; for 25V: 15, 7.5, 3.7, 1.8 watts. Rotary tap impedance selector switch. Screw terminals make installation fast and easy. For indoor and outdoor use. Uniquely designed all-purpose mounting bracket for simple installation. Self-aligning, field-replaceable diaphragm for easy maintenance. Limited lifetime warranty. Mountable to I-beam flange using Bogen s BC1 Beam Clamp (sold separately). Mountable to electrical box using Bogen s HSES10 mounting strap (sold separately). Terminal Cover (TCSPT1) allows connection of conduit fittings to horn speakers (sold separately).