SoundTube CM800IBK
CM800i 8" Coaxial Ceiling Speaker, Black


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The CM800i is an 8" 2-way blind-mount in-ceiling speaker design that delivers extended low-end response (60 Hz) and optimal off-axis performance (up to 10 kHz, EASE documented). SoundTube's proprietary BroadBeam11® waveguide tweeter system delivers consistent high performance audio across the operating bandwidth.

The CM800i speaker design incorporates a low-profile grille, proprietary M8 motor-board and 6-position tap switch with voice coil/8 Ohm direct. Mounting hardware is included and features a fast and secure constant tension fixed-wing mounting system.


  • Patented BroadBeam® dispersion technology delivers full-frequency, high-performance audio.
  • Reengineered rapid-installation features include easy-install SpeedWing™ mounting system with constant-tension design that mounts to ceiling thicknesses from 6.4 mm (6.4 mm) to 1.69" (42.9 mm).
  • Separate low-profile grille and magnetic bezel ease installation and in-field service and painting
  • Speed-tap power settings save customers time and money on ordering, inventory tracking, installation and system tuning.
  • 25, 70.7 and 100 Volt transformer options with voice coil/8 Ohm direct.
  • High-frequency driver protection with automatic reset.
  • Sonically matched with SoundTube's RSi (open ceiling) and SMi (surface mount) speakers for applications requiring combinations of hanging and mounted speakers.
  • Tile bridge included with each CMi speaker. Pre-construction bracket optional.
  • May be used in conjunction with CM1001d Subwoofer for applications where additional bass is required.
  • UL 1480 & 2043 pending.

Note: Black in color. Image shows CM800IWH.

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