5.25 inch (134 mm) polypropylene woofer with rubber surround and one 0.75 inch (19 mm) silk dome tweeter. BroadBeam Ring™ technology for mid-range clarity and smooth off axis performance. Easy-access six-position tap switch for 25/70.7/100-volt and transformer bypass settings allows for easy ordering, stocking and installation. Tuned port on baffle for added musicality and bass response down to 65 Hz (-10 dB). Reduced amplification costs and maxi¬mum efficiency of 84.5 dB sensitivity, 16 ohm impedance. Incorporates a painted steel grille for lasting durability. Adaptable to material thicknesses ranging from 0.035 in. (0.9 mm) to 1.6 in. (40.6 mm). UL 1480 and 2043 approval pending. Included accessories: Color-coded (orange) tile bridge, UL listed conduit clamp, paint shield. Includes 40 watt bi-amplified speaker with DSP and CobraNet for audio distribution and feedback on speaker condition. Equipped with RJ45 ethernet connector and 24V DC barrel connector for local power (non-PoE installation).