An in-ceiling speaker specifically tailored for use in fire signaling system that delivers the same high quality sound expected of SoundTube speakers. Engineered for applications with limited plenum space incorporating a SoundTube-specific shallow backcan with an installed depth of 3.5 inches. One 8 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 of 88.0 dB sensitivity, 16 ohm impedance and a sealed enclosure. Superior voice intelligibility with an aver¬age coverage angle of 105° (2–10 kHz, inde¬pendently 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 µF 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. Included accessories: tile bridge, UL-listed 0.5-inch conduit clamp, and paint shield.

Specifications: CM82-EZs-FSMounting hardware included
Nominal Impedance16 Ohm
Impedance (min)16 Ohm
Sensitivity dB @ 2.83V/1M85 dB
Sensitivity dB @ 1W/1M (2)88 dB
Frequency Response (± 3 dB)109 Hz - 18 kHz
Frequency Response (±10 dB)82 Hz - 22 kHz
Max. Program Power128 W
Max. Continuous Power RMS64 W
Max. Power SPL @ 1 M99 dB
Directivity Factor (Q) (Averaged 100Hz - 10kHz, @ 2kHz)5.2 (averaged 100 Hz - 10 kHz) ; 6.8 (2 kHz)
Directivity Index (DI) dB (Averaged 100Hz - 10kHz, @ 2kHz)5.5 dB (averaged 100 Hz - 10 kHz) ; 8.3 dB (2 kHz)
Tap SelectorFive-position rotary switch
70.7 Volt Transformer Taps10 W / 99 dB
100 Volt Transformer Taps (dB)10 W / 99 dB
25 Volt Transformer Taps (dB)1.3 W / 90 dB
Transducer - Low Frequency Driver8" Polypropylene Cone w/ Butyl Rubber Surround
Transducer - High Frequency Driver1″ Silk Dome
Network Type: Low Pass6 dB per octave, 1st order
Network Type: High Pass6 dB per octave, 1st order
Coverage Angle (-6 dB @ 2 kHz)105
ColorsBlack / White / Custom
InputsCeramic terminal strip
Backcan Diameter245.6 mm / 9.67 in
Backcan Height95.3 mm / 3.75 in
Visible Diameter298.5 mm / 11.75 in
Visible Height8.6 mm / 0.34 in
Mounting Hole Diameter266.7 mm / 10.5 in
Weight3.2 kg / 7 lbs
Shipping Weight4.1 kg / 9 lbs
Accessories OptionalAC-CMEZ6/8-PCB, AC-CM-EZ-JBOX
PackagingOne per box
Regulatory - ULApproved 1480A (UUMW) & 2043
Regulatory - CEapproved
Regulatory - RoHSapproved