Overview

5" Full Range Ceiling Loudspeaker with Dual Concentric Driver for Installation Applications (Blind Mount)

Features

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.

Specifications

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
• Average: 60 W
• Programme: 120 W
• Peak: 240 W
• Recommended amplifier power: 120 W @ 16 Ohms
• Nominal impedance (Lo, Z): 16 Ohms
• Average: 107 dB
• Peak: 113 dB
• 70 V:
  • 30 W (165 O) / 15 W (330 O) /
  • 5 W (660 O) / 3.75 W (1320 O) /
  • OFF & low impedance operation
• 100 V:
  • 30 W (330 O) / 15 W (660 O) /
  • 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

• 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
• 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
• Bezel diameter: 205.9 mm (8.11")
• 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")
• 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