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Tannoy CMS 503DC BM
5" Ceiling Speaker with 70/100V Transformer and Low Impedance Operation, Blind Mount Version

OUR PART #  CMS-503DC-BM

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The Tannoy CMS 503DC 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. Based on an all-new evolution of Tannoy’s proprietary Dual Concentric point-source driver, the CMS 503DC 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 patent-pending Torus Ogive Waveguide device, together providing more consistent and controlled 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 onand off-axis. The re-designed baffle provides a subtle extension to the waveguide effect for additional sonic benefits.

The CMS 503DC 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 503DC 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 30 W transformer is included, with convenient front bezel switching for taps at 30 W, 15 W and 7.5 W, with an additional 3.75 W tap for traditional constant voltage systems.

The CMS 503DC 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 503DC 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 503DC BM Features:

  • Advanced new Dual Concentric driver design utilizing Omnimagnet technology
  • Torus Ogive Waveguide device for improved broadband directivity
  • Tight, uniform 70° 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, 30 watt line transformer for amore 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 503DC BM Specifications:

  • Frequency response (-3 dB, BM Backcan): 85 Hz -50 kHz
  • Frequency range (-10 dB, BM Backcan): 74 Hz -54 kHz
  • System Sensitivity (1 W @ 1 m): 89 dB (1 W = 4V for 16 Ohms)
  • Nominal Coverage Angle: 90° conical
  • Power Handling: Average 60 W, Programme 120 W, Peak 240 W
  • Recommended Amplifier Power: 120 W @ 16 ohms
  • Nominal Impedance (Lo, Z): 16 ohms
  • Rated maximum SPL: Average 107 dB, Peak 113 dB
  • Transformer Taps (via front rotary switch):
    • 70V:  30 W (165 Ohms) / 15 W (330 Ohms) / 7.5 W (660 Ohms) / 3.75 W (1320 Ohms) / OFF & low impedance operation
    • 100V:  30 W (330 Ohms) / 15 W (660 V) / 7.5 W (1320 Ohms) / OFF & low impedance operation

NOTE:  For full specifications on this product,refer to the attached Data Sheet under the Documentation Tab

Tannoy CMS 503DC BM
5" Ceiling Speaker with 70/100V Transformer and Low Impedance Operation, Blind Mount Version

OUR PART #  CMS-503DC-BM

Product Videos:

Product Information:

The Tannoy CMS 503DC 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. Based on an all-new evolution of Tannoy’s proprietary Dual Concentric point-source driver, the CMS 503DC 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 patent-pending Torus Ogive Waveguide device, together providing more consistent and controlled 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 onand off-axis. The re-designed baffle provides a subtle extension to the waveguide effect for additional sonic benefits.

The CMS 503DC 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 503DC 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 30 W transformer is included, with convenient front bezel switching for taps at 30 W, 15 W and 7.5 W, with an additional 3.75 W tap for traditional constant voltage systems.

The CMS 503DC 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 503DC 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 503DC BM Features:

  • Advanced new Dual Concentric driver design utilizing Omnimagnet technology
  • Torus Ogive Waveguide device for improved broadband directivity
  • Tight, uniform 70° 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, 30 watt line transformer for amore 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 503DC BM Specifications:

  • Frequency response (-3 dB, BM Backcan): 85 Hz -50 kHz
  • Frequency range (-10 dB, BM Backcan): 74 Hz -54 kHz
  • System Sensitivity (1 W @ 1 m): 89 dB (1 W = 4V for 16 Ohms)
  • Nominal Coverage Angle: 90° conical
  • Power Handling: Average 60 W, Programme 120 W, Peak 240 W
  • Recommended Amplifier Power: 120 W @ 16 ohms
  • Nominal Impedance (Lo, Z): 16 ohms
  • Rated maximum SPL: Average 107 dB, Peak 113 dB
  • Transformer Taps (via front rotary switch):
    • 70V:  30 W (165 Ohms) / 15 W (330 Ohms) / 7.5 W (660 Ohms) / 3.75 W (1320 Ohms) / OFF & low impedance operation
    • 100V:  30 W (330 Ohms) / 15 W (660 V) / 7.5 W (1320 Ohms) / OFF & low impedance operation

NOTE:  For full specifications on this product,refer to the attached Data Sheet under the Documentation Tab

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