CMS 503DC BM Ceiling Speaker Tannoy

Product Features

• 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

• Optimised 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

• Designed and engineered in the U.K.

  

  CMS 3.0 CMS 503DC BM

  The CMS 503DC BM is a full bandwidth 240-Watt high sensitivity loudspeaker that utilises 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.

  

  Optimised for Installation

  Specifically designed with a self-aligning 3 way clamp system for fast, simple and cost effective installation, CMS 503DC BM features an acoustically enhanced zinc plated steel back can with removable locking screw terminal connector and loop-thru functionality. A low insertion loss 30 W transformer with convenient front panel tap switching, paintable powder coated steel mesh grille with dust protection, two tile support rails and one C-ring are all included. An Arco style grille, which conceals the entire unit for aesthetic purposes, and plaster (mud) ring are available separately.

  

  LAB GRUPPEN Ready

  The CMS 503DC BM is finished in semi matt white and optimised for use with LAB GRUPPEN LUCIA amplifiers, which accommodate up to 8 CMS Series loudspeakers per channel.

  Specification

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  Performance

  Frequency response (-3 dB) (1)	85 Hz - 50 kHz BM Backcan
  Frequency range (-10 dB) (1)	74 Hz - 54 kHz BM Backcan
  Frequency range (-10 dB) (1)	70 Hz - 54 kHz PI Backcan
  System sensitivity (1 W @ 1 m) (2)	89 dB (1 W = 4 V for 16 Ohms)
  Nominal coverage angle	90 degrees conical
  Power handling (3)
  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)
  70 V	30 W (165 O) / 15 W (330 O) / 7.5 W (660 O) / 3.75 W (1320 O) / OFF & low impedance operation
  100 V	30 W (330 O) / 15 W (660 O) / 7.5 W (1320 O) / OFF & low impedance operation

  Transducers

  Dual concentric point source driver	1 x 130 mm (5.0") Dual Concentric driver, using Omnimagnet technology
  Low frequency	35 mm (1.38") voice coil, treated multi fiber paper pulp cone
  High frequency	20 mm (0.79") PEI dome

  Physical

  Enclosure
  Backcan	Zinc plated steel
  Baffle	Reflex loaded UL 94V-0 rated ABS
  Grille	Steel, with weather resistant coating
  Safety features	Safety ring located at rear of enclosure for load bearing safety bond
  Clamping design	Security toggle clamp Min / Max clamping range 9.5 mm (0.37") / 60 mm (2.36") Recommended clamp torque: 1.5 Nm
  Backcan options
  Blind mount (BM)	Complete with fixed backcan
  Pre install (PI)	Separate backcan for pre-installation
  Cable entry options	Cable clamp & squeeze connector for conduit up to 22 mm
  Conduit knockouts on PI Backcan	3 Sets of horizontal positions 19 / 22 / 28 mm (0.75" / 0.87" / 1.10")
  Connectors	Removable locking connector with screw terminals with “loop through” facility
  Compliance	UL-1480, UL-2043, CE
  Dimensions
  Bezel diameter	205.9 mm (8.11")
  Front of ceiling to rear of backcan	—
  BM model: Front of ceiling to <br />rear of backcan	188.0 mm (7.40")
  BM model: Front of ceiling <br />to top of safety loop	205.3 mm (8.08")
  PI model: Front of ceiling surface <br />to rear of speaker unit	133.3 mm (5.25")
  PI model: Front of accessory backcan <br />bezel to top of safety loop	153.5 mm (6.04")
  Hole cutout diameter (all models)	190 mm (7.48")
  Net weight (ea)
  CMS 503DC BM	4.3 kg (9.47 lbs)
  CMS 503DC PI	3.2 kg (7.05 lbs)
  PI Backcan	1.9 kg (4.18 lbs)
  Included accessories	C-Ring, tile-bridge kit, paint mask, cut-out template, grille
  Optional accessories	Plaster (mud) ring, Arco grille
  Packed quantity	2