The CM42-EZs-II is a 4", coaxial, two-way, blindmount, in-ceiling speaker which delivers true high efficiency and performance across the operating bandwidth. By incorporating a 4" treated-fiber driver with cloth surround in a sealed drawn steel backcan, this speaker delivers maximum frequency response (125 Hz - 22 kHz, ±10 dB) in a compact design.

Mounting hardware is included and features a constant-tension winged mounting system with a 21-gauge "full metal" steel tile bridge ensuring rapid and secure installation in any sheetrock or drop-tile application. For easy ordering, stocking and installation, this series includes a color-coded (orange) tile bridge, optional pre-construction bracket, and a six-position tap switch for 25, 70.7 and 100 V applications with transformer bypass position.

Features

• Engineered for applications with limited plenum space incorporating a SoundTube-specific shallow backcan with an installed depth of only 3.5"
• One 4" (102 mm) treated fiber woofer with cloth surround and one 0.75" (19 mm) silk dome tweeter
• Easy-access six-position tap switch for 25/70.7/100-volt and 16 Ω transformer bypass position allows for easy ordering, stocking, and installation
• Reduced amplification costs with maximum efficiency including 87.5 dB sensitivity and 16 Ω impedance
• Superior voice intelligibility with an average coverage angle of 100° (2-10 kHz, independently verified)
• Cost-effective 16 Ω settings allows for the use of multiples of two, four, or six speakers in a system using a standard amplifier without a transformer
• Incorporates a painted steel grille for lasting durability
• Clamping allowance from 0.0" (0.0 mm) to 1.5" (38.1 mm)
• UL1480A and 2043, CE (EMC Directive 89/366/ EEC, EN55020, EN55013) approved
• High-quality black or white painted finish. Custom colors available
• Included accessories: tile bridge, UL-listed 0.5" flex conduit clamp, paint shield, and two wire nuts
• Optional accessories: color-coded (orange) preconstruction bracket (AC-CM4-PCB), junction box (AC-CM-EZ-JBOX)

Architectural Specifications

The loudspeaker transducer shall consist of one 102 mm (4") lowfrequency transducer and one 19 mm (0.75") high-frequency transducer with a frequency dividing network installed in a sealed enclosure. The low-frequency transducer shall have a treated fiber cone material with cloth surround. The high-frequency transducer shall be constructed of silk material using a balanced-dome configuration.