Tannoy CMS-803DC-Q

8" Ceiling Speaker with 70/100V Transformer and Low Impedance Operation for High Ceiling Applications

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The Tannoy CMS 803DCQ is a full bandwidth, high power-handling and high sensitivity loudspeaker built around CMS 3.0 – the third generation of Tannoy’s revolutionary Ceiling Monitor System technology. The new “Q” variant, designed specifically for high-ceiling applications, incorporates a proprietary waveguide design with a tight, uniform 70-degree conical dispersion pattern.

Based on an all-new evolution of Tannoy’s proprietary Dual Concentric point-source driver, the CMS 803DCQ has been fundamentally re-engineered to deliver wider and more consistent broadband directivity, even greater intelligibility, and a more accurate and linear response. The new Dual Concentric driver design features revolutionary Omnimagnet technology and unique patentpending Torus Ogive Waveguide device for more consistent directivity along with improved high frequency response. Improved time-alignment and greater coherence between LF and HF results in a wider sweet spot for enhanced performance both on- and off-axis. The re-designed baffle provides a subtle extension to the waveguide effect for additional sonic benefits.

The CMS 803DCQ also features extra clamp extension to accommodate thicker ceiling panels, and a locking design that prevents inadvertent over-screwing. Magnetic grille attachment enables easy removal and fitting for custom painting and tapping changes with grilles now available as either traditional style (inset in bezel) or new Arco style which conceals the entire unit for more architectfriendly aesthetic appeal.

The CMS 803DCQ utilizes a 16 ohm driver, making it ideal for use in high performance low-impedance systems (with optimized performance when used in conjunction with Lab.gruppen LUCIA amplifiers). A low-insertion loss 60 W transformer is included, with convenient front bezel switching for taps at 60 W, 30 W and 15 W, with an additional 70.7 W tap for traditional constant voltage systems.

The CMS 803DCQ is available in two variants. The BM (Blind Mount) version is supplied with an integral back-can, ready to install as a single unit, while the CMS 803DCQ PI (Pre-Install) is supplied without a back-can (separate back-can available). The zinc plated steel back-cans have an integrated, recessed termination box. The removable locking connector has screw terminals for secure wire termination and loop-thru facility. Strain relief is provided by a clamping mechanism for use with plenum-rated cable or conduit, while the new design’s spring-loaded and self-aligning clamps make for even quicker and easier installation. All models are supplied with classic grille, two tile support rails and one C-ring; Arco grille and plaster (mud) ring are available as optional accessories.

Tannoy CMS 803DCQ Features:

  • Advanced new Dual Concentric driver design utilizing Omnimagnet technology
  • Torus Ogive Waveguide device for improved broadband directivity
  • Tight, uniform 70-degree dispersion pattern for high-ceiling applications
  • Improved time alignment and phase coherence, delivering even better sonic performance
  • High power and high sensitivity with extended frequency response and very low distortion
  • Improved LF performance for applications where genuine bottom-end is a must
  • Low insertion-loss, 60 watt line transformer for a more powerful and dynamic performance
  • Convenient front-tapping switch for settings
  • Magnetically-adhering grille system for easy custom painting and optional Arco designer grilles for minimal architectural impact
  • Three-clamp, self-aligning mounting system
  • UV/weather resistant UL94V-0 ABS construction for structural integrity
  • Packaged with classic grille, tile rails and C-ring for quick and easy installation and simple stocking logistics
  • Five year warranty

Tannoy CMS 803DCQ Specifications:

  • Frequency Response (-3dB): 47 Hz - 30 kHz
  • Frequency Range (-10dB, BM Backcan): 40 Hz - 35 kHz
  • Frequency Range (-10dB, PI Backcan): 41 Hz - 35 kHz
  • System Sensitivity (1 W @ 1 m): 93 dB (1 W = 4 V for 16 Ohms)
  • Nominal Coverage Angle: 70 degrees conical
  • Power Handling: Average 90W, Program 180W, Peak 360W
  • Recommended Amplifier Power: 180W @ 16 Ohms
  • Rated Maximum SPL: Average 113dB, Peak 119dB
  • Transformer Taps:
    • 70V: 60 W (83 Ohms) / 30 W (165 Ohms) / 15 W (330 Ohms) / 7.5 W (660 Ohms) / OFF & low impedance operation
    • 100V: 60 W (165 Ohms) / 30 W (330 Ohms) / 15 W (660 Ohms) / OFF & low impedance operation


For full specifications for this product, refer to the attached Data Sheet under the Documentation Tab

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