SoundTube CM500i In Ceiling Speaker in Black

One 5.25 inch polypropylene woofer and one 1.0 inch convex titanium tweeter with FerroFluid cooling mounted to a proprietary cast-aluminum baffle and heat sink. Patented BroadBeam® waveguide technology delivers a consistent dispersion pattern for maximum intelligibility and edge-to-edge coverage. Rapid-installation, blind-mount, fixed wing mounting mechanism with constant tension design affixing to ceiling thicknesses ranging from 0.25 inch (6.4 mm) to 1.91 inch (48.5 mm).


Easy-access six-position selectable tap switch for 25-, 70.7- and 100-volt applications with transformer bypass position. Separate tool-free magnetic grille and bezel assembly with integrated safety cable for ease of install and in-field painting. Steel grille with protective powder-coated finish for lasting durability. Average sensitivity of 86.5 dB offers high-output capabilities and reduced amplification costs. UL 1480 (UEAY) and 2043 approved.

Included accessories: Tile bridge, conduit plate, Euroblock connector and paint mask.

Owner’s Manual | Tech Sheet | Mechanical Drawing | GLL | EASE 4.0 | EASE 3.0 | CLF 1 | CLF 2 | A&E Specs | Revit | DXF | DWG | PDF Drawing | UL Certificate

About SoundTube

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    Manufacturer’s Suggested Retail Price 
    Manufacturer’s CategoryCMi In-Ceilings
    Shipping Weight25.45 lbs / 11.54 kg
    Carton Height15.25 in / 387.35 mm
    Carton Length26 in / 660.4 mm
    Carton Width14 in / 355.6 mm
    CertificationsCE, RoHS, UL1480A, UL2043
    Enclosure PropertiesABS, Aluminum, Ported
    Included AccessoriesConduit Plate, Euroblock, Grille, Paint Mask, Tile Bridge
    Optional AccessoriesBlack Weather-Guard Grill (GRL-CM500-WG-BK)|Black Flangeless Grille (GRL-CM5-FLG-BK)|Tile Bridge (AC-CM5-TB)|Pre-Construction Bracket (AC-CM5-PCB)|Cover Plate (CVR-CMI-BACKPLATE)|Connector (EUROBLOCK)|Junction Box (AC-CM-JBOX)
    Source Inputs4 Pin 5.08mm Euroblock
    Backcan Diameter8.63 in / 219.2 mm
    Backcan Height7.75 in / 196.9 mm
    Coverage Angle (-6dB @ 2kHz)125°
    Crossover Frequency3.0 kHz
    Cutout Width/Diameter9 in / 228.6 mm
    Directivity Factor (Q) (Averaged 100Hz – 10kHz, @ 2kHz)4.8 and 9.5
    Directivity Index (DI) dB (Averaged 100Hz – 10kHz, @ 2kHz)6.1dB and 9.8dB
    Frequency Response (± 10 dB)55 Hz – 22 kHz
    Frequency Response (± 3 dB)75 Hz – 22 kHz
    Grille PropertiesBlack, Standard-Flange, Magnetic, Powder-Coated, Paintable, Steel
    Low Frequency Voice Coil1 in / 25.4 mm
    Low Pass Crossover12 dB per octave 2nd order
    Magnetically BoostedNo
    Max. Ceiling Thickness1.91 in / 48.5 mm
    Max. Continuous Power RMS75W
    Max. Program Power150 W
    Minimum Impedance (Ω Ohms)4.7 Ω
    Minimum Ceiling Thickness0.25 in / 6.4 mm
    Network Type: High Pass12 dB per octave 2nd order
    Nominal Impedance (Ω Ohms)8 Ω
    Tweeter Driver1″ Convex Titanium w/ BroadBeam® Waveguide
    Woofer Driver5.25″ Polypropylene Cone w/ Butyl Rubber Surround
    Sensitivity dB @ 1W/1M86.5 dB
    Sensitivity dB @ 2.83V/1M86.5 dB
    Tap SelectorRotary Switch
    Transformer Options25 / 70.7 / 100 V, 8 Ohm direct
    Transformer Taps (25V/70.0V/100V)5W/33W/33W
    Visible Diameter10.71 in / 272 mm
    Visible Height0.96 in / 24.4 mm