The next generation version of the SoundTube CM62-EZS-II with improved and additional features. Engineered for applications with limited plenum space, incorporating a SoundTube-specific shallow back can with an installed depth of only 3.5 inches. One 6.50 in (165.0 mm) treated fiber woofer with cloth surround and one 1.00 in (25.4 mm) silk dome tweeter. SoundTube CM62-EZS-II easy-access six-position tap switch for 25/70.7/100-volt and 16 ohm transformer bypass position allows for easy ordering, stocking and installation. Reduced amplification costs with maximum efficiency including 90.5 dB sensitivity and 16 ohm impedance. Superior voice intelligibility with a 10 kHz coverage angle of 80° (independently verified). Cost-effective 16 ohm settings allows for the use of multiples of two, four, or six speakers in a system using a standard amplifier without a trans former. Incorporates a painted steel grille for lasting durability. Ceramic input terminal accepts up to 10 gauge plenum rated signal wire and includes thermal fuse. Suitable for use in voice alarm applications subject to EU regulations EN60849 and BS5839-8. Adaptable to material thicknesses ranging from 0.04 inch (0.9 mm) – 1.60 inch (40.6 mm). UL 1480 (UEAY) and 2043, cUL, CE (EMC Directive 89/366/EEC, EN55020, EN55013) approved. Included accessories: Tile bridge, UL-listed 0.5-inch flex conduit clamp, paint shield and two wire nuts.