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

Engineered for applications with lim­ited plenum space incorporating a Sound­Tube specific shallow back can with an installed depth of only 3.5 inches. Soundtube Cm42-ezs-II one 4 inch (102 mm) treated fiber woofer with cloth surround and one 0.75 inch (19 mm) silk dome tweeter. 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 87.5 dB sensitiv­ity and 16 ohm impedance. Soundtube Cm42-ezs-II superior voice intelligibility with an average coverage angle of 100° (2–10 kHz, 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 transformer. 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. Clamping allowance from 0.00 in. (0.0 mm) to 1.50 in. (38.1 mm). UL 1480 (UEAY) and 2043, 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.

The Soundtube CM42-EZs-II is a 4-inch, coaxial, two-way, blind-mount, in-ceiling speaker which delivers true high efficiency and performance across the operating bandwidth. By incorporating a 4-inch treated fiber driver with cloth surround in a sealed drawn steel back can, 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 “fullmetal” 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-volt applications with transformer bypass position.

Soundtube Cm42-Ezs-II Specs

Low Frequency(-10 dB) 125 Hz – 22 kHz
Sensitivity 87.5 dB
Power Capacity RMS 20 W
Max SPL dB @ 1 M 100.5 dB
Nominal Impedance 16 ohm
Transformer Options 25 / 70.7 / 100 Volt option with a 16 Ohm direct
Tweeter 0.75 in. Silk
Woofer 4 in. Treated fiber
Visible Height 8.4 mm (0.33 in.)
Visible Diameter 190.5 mm (7.50 in.)
Back can Height 95.3 mm (3.75 in.)
Back can Diameter 146.8 mm (5.78 in.)
Weight 1.8 kg (4.0 lb.)
Shipping Weight 2.3 kg (5.0 lb.)
Optional Accessory Color-coded (orange) pre-construction bracket (AC-CM4-PCB), junction box (AC-CM-EZ-JBOX).
Colors Black / White, or Custom
List price: $130.00
Price: $130.00