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CM42-EZs-II
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SoundTube - CM42-EZs-II - 4" Coax In-Ceiling Speaker (Single)

SoundTube - CM42-EZs-II - 4" Coax In-Ceiling Speaker (Single)

Engineered for applications with lim­ited plenum space incorporating a Sound­Tube-specific shallow backcan with an installed depth of only 3.5 inches. 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.

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. EN54-24 listed. 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 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 treatedfiber 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 “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.

Developed specifically for the paging and background music applications where cost, quality and fit are paramount, the CM42-EZs-II is ideal for hotels, retail stores, restaurants, airports, churches (under eave), medical facilities or boardrooms. Indeed, the entire CM-EZ-II series is engineered for installations where high-efficiency and rapid installation are critical attributes. For applications requiring additional bass response, SoundTube’s CM1001dT subwoofer provides true low-end response down to 50 Hz.

FEATURES:

  • Engineered for applications with limited plenum space incorporating a SoundTube-specific shallow backcan with an installed depth of only 3.5 inches
  • 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.
  • 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.
  • 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
  • High-quality black or white painted finish.
  • Included accessories: Tile bridge, ULlisted 0.5-inch flex conduit clamp, paint shield and two wire nuts
  • Optional accessories: Color-coded (orange) pre-construction bracket (AC-CM4-PCB), junction box (AC-CM-EZJBOX).

SPECIFICATIONS:

Product CM42-EZs-II - 4" Coax In-Ceiling Speaker (Single)
System Type 4-inch, coaxial, in-ceiling, sealed (20-watt transformer for 25/70.7/100-volt or transformer bypass)
Impedance (Nominal) 16 ohm
Sensitivity dB @ 2.83V / 1 M 84.5 dB
Sensitivity dB @ 1 W/1 M 87.5 dB
Frequency Response (-3 dB) 160 Hz - 20 kHz
Frequency Response (-10 dB) 125 Hz - 22 kHz
Max. Program Power 40 W
Max. Continuous Power RMS 20 W
Max. SPL dB @ 1 M RMS 100.5 dB
Coverage Angle (-6 dB @ 2 kHz) 170º
Coverage Angle (-6 dB @ 10 kHz) 95º
Coverage Angle (Avg. 2 to 10 kHz) 100º
Directivity Factor (Q) 4.3 (averaged 100 Hz - 10 kHz); 4.2 (2 kHZ)
Directivity Index (DI) 5.7 dB (averaged 100 Hz - 10 kHz); 6.2 dB (2 kHz)
Tap Selector Six-position rotary switch with transformer bypass position
Transducer - Low Frequency Driver 102 mm (4 in.) Treated fiber cone, cloth surround
Transducer - High-Frequency Driver 19 mm (0.75 in.) Silk dome tweeter
Low Frequency Voice Coil 12.70 mm (0.50 in.)
Network Type: Low-Pass 12dB per octave, 2nd order
Network Type: High-Pass 6 dB per octave, 1st order
Enclosure Alignment Sealed
Enclosure Material Drawn steel backcan with ABS baffle
Grille Painted Steel
Inputs 4 position ceramic terminal strip
Colors Black or white
Backcan Diameter 146.8 mm (5.78 in.)
Backcan Height 95.3 mm (3.75 in.)
Visible Diameter 190.5 mm (7.50 in.)
Visible Height 8.4 mm (0.33 in.)
Mounting Hole Diameter 165.1 mm (6.50 in.)
Min. / Max. Ceiling Thickness 0.0 mm (0.0 in.) – 24.6 mm (0.97 in.)
Weight 1.8 kg (4.0 lb.)
Shipping Weight 2.3 kg (5.0 lb.)
Included Accessories Tile bridge, UL-listed flex conduit clamp, paint shield, hole template, wire nuts
Packaging One per box
Regulatory - UL UL 1480 and 2043 Approved
Regulatory - CE, RoHS Approved
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