Tannoy CMS 503DC BM 5 Full Range Ceiling Loudspeaker

5″ Full Range Ceiling Loudspeaker with Dual Concentric Driver for
Installation Applications (Blind Mount), 60W RMS @ 16 Ohms .

Technical Details

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The CMS 503DC BM is a full bandwidth 240-Watt high sensitivity loudspeaker that utilizes our third generation Ceiling Monitor System technology (CMS 3.0). Thanks to an all-new proprietary 5″ Dual Concentric point-source driver with Omnimagnet technology on a Torus Ogive Waveguide, the UL certified CMS 503DC BM delivers wide and consistent broadband directivity with enhanced intelligibility -plus highly accurate and linear response.

Manufacturers Product Description

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 OmnimagnetTM technology and unique patent-pending Torus Ogive WaveguideTM 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 on-and 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 ArcoTM style which conceals the entire unit for more architect- friendly 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).


  • Advanced nuevo driver concéntricos diseño utilizando omnimagnet tecnología Dual
  • Torus arco apuntado dispositivo de guía de onda para mejorar la banda ancha direccionalidad
  • Ajustados, patrón de dispersión uniforme de 90 grados para aplicaciones de high-ceiling
  • Mejora de la alineación de tiempo y fase, la coherencia, ofreciendo incluso mejor rendimiento de Sonic
  • De alta potencia y alta sensibilidad con frecuencia de respuesta ampliada y muy baja distorsión
  • Full range ceiling loudspeaker for installation applications
  • 60 Watts continuous, 240 Watts peak power
  • Next generation 5″ Dual Concentric driver featuring Omnimagnet technology
  • Torus Ogive waveguide for improved high frequency response and directivity
  • Blind Mount version supplied with acoustically enhanced zinc plated steel back can
  • Integrated single unit construction for ease of installation
  • UL 1480 certified for general signalling systems
  • UL 2043 certified for air-handling spaces
  • Multiple transformer taps for 70 V and 100 V line systems or 16 Ohm direct input
  • Low insertion loss 30 W line transformer with easily accessible tapping switch
  • Optimized for LAB GRUPPEN low impedance LUCIA amplifiers with up to 8 CMS series loudspeakers per channel
  • Semi matt white finish fits unobtrusively in any environment
  • Powder coated UV resistant perforated steel mesh grille with dust protection
  • Removable magnetic grille for custom painting
  • Optional ARCO designer grilles available for minimal architectural impact
  • Self-aligning 3 way clamp mounting system
  • Mounting C-ring and ceiling tile rails included