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SoundTube CM800D
8" Ceiling Speaker, Deep Can


The CM800d is an 8-inch, two-way, blindmount...
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The CM800d is an 8-inch, two-way, blindmount, in-ceiling speaker that delivers extended low-end response (56 Hz) and optimal off-axis performance (up to 10 kHz, EASE™ documented). SoundTube’s proprietary BroadBeam® waveguide tweeter system delivers consistent high-performance audio across the operating bandwidth. The CM800d speaker design incorporates an extra deep steel backcan (12.46 in.), a low-profile grille, a proprietary M8™ motorboard and a five-position tap switch with voice-coil-direct position. Mounting hardware
is included and features a fast and secure constant-tension fixed-wing mounting system.


  • Patented BroadBeam waveguide technology delivers a consistent dispersion pattern for maximum intelligibility and edge-to-edge coverage (up to 10kHz, independently varified).
  • One 8" polypropylene woofer and one 1" convex aluminum tweeter with FerroFluid cooling mounted to a proprietary cast-aluminum M8 baffle and heat sink.
  • An 11.77" DeepCan provides additional bass response.
  • Rapid-installation, blind-mount, fixed-wing mounting mechanism with constant-tension design affixing to ceiling thicknesses ranging from .25" to 1.91"
  • Separate tool-free magnetic grill and bezel assembly with integrated safety/seismic cable for ease of install and in-field painting
  • Steel grill with protective powder-coated finish for lasting durability
  • Easy access five-position selectable tap switch for 25-, 70.7-, 100-Volt and low-impedance applications simplifies ordering and inventory tracking
  • Sensitivity or 90.5dB (1W/1m) offers high-output capabilities and reduced amplification costs.
  • UL 1480 and 2043 approved.
  • Included accessories: Tile bridge, Euroblock connector, conduit plate, support cable, paint mask/installation aid


  • Frequency Response (-3dB): 73Hz - 22kHz
  • Low Frequency(-10dB): 56Hz
  • Sensitivity: 90.5
  • Power Capacity (RMS): 125W
  • Nominal Impedance: 8 Ohms
  • Transformer Options: 1.9 - 120W
  • Woofer: 8" Poly
  • Mid: N/A
  • Tweeter: 1" BroadBeam
  • Connections: Four-pin Euroblock
  • Visible Height: 1.08"
  • Visible Diameter: 14.76"
  • Weight: 12.5"
  • Colors: Black or White

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