Soundtube CM82-EZ-FS-WH White 8" Coax Fire Signaling In-Ceiling Speaker

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The CM82-EZ-FS is an 8-inch, coaxial, two-way, blind-mount, in-ceiling speaker which delivers true high efficiency and performance across the operating bandwidth. By incorporating an 8-inch polypropylene driver with a butyl rubber surround in a sealed drawn steel backcan, this speaker delivers maximum frequency response (65 Hz  22 kHz, - 10 dB) in an integrated enclosure design.Mounting hardware is included and features a constant-tension, fixed-wing 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 (green) tile bridge, optional pre-construction bracket, and five-position tap switch for 25-, 70.7- and 100-volt applications.


  • An in-ceiling speaker specifically tailored for use in fire signaling system that delivers the same high quality sound expected of SoundTube speakers.
  • One 8.0 inch (203 mm) polypropylene woofer with butyl rubber surround and one 1.0 inch (25.4 mm) silk dome tweeter.
  • Easy-access five-position tap switch for 25/70.7/100-volt settings allows for easy ordering, stocking and installation.
  • Reduced amplification costs and maxi¬mum efficiency 89.0 dB sensitivity, 16 ohm impedance and a sealed enclosure.
  • Superior voice intelligibility with an average coverage angle of 95-degree (210 kHz, independently verified).
  • Incorporates a painted steel grille with rust inhibitor for lasting durability.
  • Adaptable to ceiling thicknesses ranging from 0.04 inch (0.9 mm) to 1.60 inch (40.6 mm).
  • 10 uF capacitor provided on input circuit for use with DC supervision circuits.
  • UL 1480 (UUMW) and 2043, cUL, 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-inch conduit clamp, and paint shield.
  • Optional accessories: color-coded (green) pre-construction bracket (AC-CMEZ6/8-PCB) and junction box (AC-CM-EZ-JBOX).


  • Frequency Response(-3 dB): 92 Hz - 18 kHz
  • Low Frequency(-10 dB): 65 Hz - 22 kHz
  • Sensitivity: 89 dB
  • Power Capacity RMS: 64 W
  • Max SPL dB @ 1 M: 99.0 dB
  • Nominal Impedance: 16 ohm
  • Tweeter: 1.0 in. Silk
  • Connections: Four position ceramic terminal strip
  • Visible Height: 0.34 inches
  • Visible Diameter: 11.75 inches
  • Backcan Height: 5.75 inches
  • Backcan Width: 9.67 inches
  • Weight: 9.0 lbs
  • Shipping Weight: 10.0 lbs
  • Colors: Black or white
  • This model is WHITE