3 inch PREMIUM FULL-RANGE IN-CEILING SPEAKERS. One 3 inch (76.2 mm) full-range high-extrusion, high-fidelity polypropylene driver with butyl rubber surround. Weatherized components for indoor/outdoor applications. Shallow 3.5 inch (88.9 mm) deep all-steel backcan with integrated driver and baffle configuration. 


Ultra-compact design with a total visible footprint of less than 6.3 inch (160.6 mm)diameter. Rapid installation, blind-mount, fixed-wing mounting mechanism with constant tension design affixing to wall thicknesses ranging from 0.1 in. (2.5 mm) to 1.5 in. (38.1 mm). Corrosion-resistant, powder-coated aluminum grille with snap fit attachment.



 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. UL 1480 (UEAY) and 2043 approved. Included accessories: Tile bridge.

  • ColorBlack
    Manufacturer’s Suggested Retail Price$145.00
    Manufacturer’s CategoryCM-EZ Economical In-Ceilings
    Shipping Weight3.7 lbs / 1.68 kg
    Carton Height8.25 in / 209.55 mm
    Carton Length8 in / 203.2 mm
    Carton Width7.25 in / 184.15 mm
    CertificationsCE, RoHS, UL1480A, UL2043
    Enclosure PropertiesABS Glass Fiber Reinforced, Injection Molded, Sealed
    Enclosure Volume60 cu in / 983.22 cu cm
    Included AccessoriesConduit Clamp, Grille, Paint Mask, Tile Bridge, Wire Nuts
    Optional AccessoriesBlack Grille (GRL-CM31-BK)|Tile Bridge (AC-CM31-TB)|Pre-Construction Bracket (AC-CM31-PCB)|Junction Box (Included with pre-construction bracket)
    Source InputsWire Leads
    Backcan Diameter5.5 in / 139.7 mm
    Backcan Height3.5 in / 88.9 mm
    Coverage Angle (-6dB @ 2kHz)45°
    Cutout Width/Diameter5.5 in / 139.7 mm
    Directivity Factor (Q) (Averaged 100Hz – 10kHz, @ 2kHz)4.5 and 3.5
    Directivity Index (DI) dB (Averaged 100Hz – 10kHz, @ 2kHz)5.3dB and 5.2dB
    Frequency Response (± 10 dB)115 Hz – 22 kHz
    Frequency Response (± 3 dB)190 Hz – 14 kHz
    Grille PropertiesAluminum, Black, Standard-Flange, Powder-Coated, Snap-Fit
    Low Frequency Voice Coil0.75 in / 19 mm
    Magnetically BoostedNo
    Max. Ceiling Thickness1.5 in / 38.1 mm
    Max. Continuous Power RMS20W
    Max. Program Power40 W
    Minimum Impedance (Ω Ohms)8 Ω
    Minimum Ceiling Thickness0.1 in / 2.5 mm
    Nominal Impedance (Ω Ohms)8 Ω
    Fullrange Driver3″ Polypropylene driver with butyl rubber surround
    Sensitivity dB @ 1W/1M85 dB
    Sensitivity dB @ 2.83V/1M85 dB
    Tap SelectorRotary Switch
    Transformer Options25 / 70.7 / 100 V, 8 Ohm direct
    Transformer Taps (25V/70.0V/100V)1.3W/10W/30W
    Visible Diameter6.3 in / 160 mm
    Visible Height0.6 in / 15.2 mm