The SoundTube CM500i is a premium 5.25” two-way blind-mount in-ceiling speaker, engineered for high-performance audio in commercial, hospitality, and public spaces. With effective low-end response (55 Hz) and optimal off-axis performance (2–10 kHz, independently verified), the CM500i delivers crisp, clear sound and consistent coverage across the listening area.
Featuring SoundTube’s proprietary BroadBeam® waveguide tweeter system, this speaker ensures maximum intelligibility and edge-to-edge audio coverage. The design includes a low-profile grille, a proprietary cast-aluminum motor-board and heat sink, and a six-position tap switch with transformer bypass, offering flexibility for 25V, 70.7V, and 100V systems.
SoundTube CM500i Key Features
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5.25” polypropylene woofer and 1” convex titanium tweeter with FerroFluid cooling
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Patented BroadBeam® waveguide for consistent high-frequency coverage
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Rapid blind-mount installation with SpeedWing™ fixed-wing system, fitting ceiling thicknesses from 0.25” to 1.91” (6.4–48.5 mm)
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Six-position selectable tap switch with transformer bypass for flexible system integration
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Tool-free magnetic grille and bezel assembly with integrated safety cable for easy installation and painting
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Powder-coated steel grille for durability
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Average sensitivity 86.5 dB for high-output performance and reduced amplification costs
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UL 1480A and UL 2043 approved
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Available in black or white; custom paint colors optional
Included Accessories
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Tile bridge
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Euroblock connector
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Conduit plate
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Paint mask
Optional Accessories
The CM500i is ideal for schools, retail, restaurants, conference rooms, and other commercial or public spaces, delivering reliable, high-fidelity in-ceiling sound with easy installation.