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Tannoy CMS-503DC-PI
High Power 5-Inch Dual Concentric Ceiling Speaker


Based on an all-new evolution of Tannoyā€™s proprietary Dual Concentric point-source driver...
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Based on an all-new evolution of Tannoyā€™s proprietary Dual Concentric point-source driver, the CMS 503DC PI 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 Omnimagnetā„¢ technology and patent-pending Torus Ogive Waveguideā„¢ 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 PI 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 Arcoā„¢ style which conceals the entire unit for more architect-friendly aesthetic appeal.

The CMS 503DC PI 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 PI is supplied without a back-can. All models are supplied with classic grille, two tile support rails and one C-ring; Arco grille back-can and plaster (mud) ring are available as optional accessories.

Tannoy CMS-503DC-PI Specifications:

  • Performance:
    • Frequency Range (-10 dB) (1): 70 Hz - 54 kHz
    • 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 (2):
      • Average: 107 dB
      • Peak: 113 dB
    • Transformer Taps (via front rotary switch):
      • 70 V: 30 W (165 Ohms) / 15 W (330 Ohms) / 7.5 W (660 Ohms) / 3.75 W (1320 Ohms) / OFF & low impedance operation
      • 100 V: 30 W (330 Ohms) / 15 W (660 Ohms) / 7.5 W (1320 Ohms) / OFF & low impedance operation
  • Transducers:
    • Dual Concentric point source driver:1 x 130 mm (5.0"?Ā¯) Dual Concentric driver, using Omnimagnet technology
    • Low Frequency: 35 mm (1.38"?Ā¯) voice coil, treated multi fiber paper pulp cone
    • High Frequency: 20 mm (0.79"?Ā¯) PEI dome
  • Physical:
    • Enclosure:
      • Back Can: Zinc plated steel
      • Baffle: UL 94 V-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: 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 surface to rear of speaker unit: 133.3 mm (5.25")
      • Front of accessory backcan bezel to top of safety loop: 153 mm (6.04")
    • Hole cutout diameter (all models): 190 mm (7.48")
    • Net Weight (ea):
      • CMS 503DC PI: 3.1 kg (6.83 lbs)
      • PI Backcan: 2.6 kg (5.73 lbs)
    • Included Accessories:
      • C Ring
      • Tile bridge
      • Paint mask
      • Cutout template
      • Grille
    • Optional Accessories:
      • Plaster (Mud) ring
      • Arco grille
    • Packed Quantity: 2
    • Finish Colour: White (Ral 9003)

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