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SoundTube - CM500i 5.25" Coaxial In-Ceiling Speaker (Single)

SoundTube - CM500i 5.25" Coaxial In-Ceiling Speaker (White)
SoundTube - CM500i 5.25" Coaxial In-Ceiling Speaker (White) SoundTube - CM500i 5.25" Coaxial In-Ceiling Speaker (Black)

SoundTube - CM500i 5.25" Coaxial In-Ceiling Speaker (Single)  

The CMi Series In-Ceiling Speakers are a favorite in-ceiling speaker by contractors! We built and engineered for performance.

The SoundTube’s CMi series incorporates BroadBeam® a full-frequency dispersion technology and fixed-wing installation fixture for any type of hanging-tile or sheet rock application.


  • Patented BroadBeam® waveguide technology delivers a consistent dispersion pattern for maximum intelligibility and edge-to-edge coverage.
  • 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.
  • 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.
  • High-quality black or white paint finish. Custom paint colors optional.
  • Included accessories: Tile bridge, conduit plate, Euro-block connector and paint mask.
  • Optional accessories: Color-coded (blue) pre-construction bracket (AC-CM5-PCB), junction box (AC-CMi-JBOX).


Low Frequency (-10 dB): 55 Hz - 22 kHz
Sensitivity: 86.5 dB
Power Capacity RMS: 75 W
Selectable: 25, 70.7, 100 Volt w/ Transformer
Max SPL dB @ 1 M: 105.5 dB
Nominal Impedance: 8 ohm
Tweeter: 1 in. BroadBeam®
Woofer: 5.25 in. Poly
Connections: Four-pin Euro-block
Visible Height: 24.4 mm (0.96 in.)
Visible Diameter: 272.0 mm (10.71 in.)
Backcan Height: 196.9 mm (7.75 in.)
Backcan Width: 219.2 mm (8.63 in.)
Weight: 3.4 kg (7.5 lbs.)
Shipping Weight: 10.7 kg (23.5 lbs.)

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