Tannoy CMS 503ICT BM 5" Full Range Ceiling Loudspeaker with ICT Driver (Blind-Mount,Pair) - TA-CMS503ICT-BM

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Sale price$518.00


(Sold as a pair)

The CMS 503ICT BM is a wide bandwidth 200-Watt high sensitivity loudspeaker that utilises our third generation Ceiling Monitor System technology (CMS 3.0). Thanks to an all-new proprietary 5" ICT (Inductive Coupling Technology) point source driver with extended frequency range, the UL certified CMS 503ICT BM delivers consistent broadband directivity with enhanced intelligibility. ICT drivers provide exceptional long-term reliability – and are ideal for constant-usage applications.


  • Full range ceiling loudspeaker for installation applications

  • 50 Watts continuous, 200 Watts peak power

  • 5" ICT (Inductive Coupling Technology) point source driver for extended frequency range

  • Blind Mount version supplied with acoustically enhanced zinc plated steel back can

  • Integrated single unit construction for ease of installation

  • High durability design for constant heavy usage in demanding applications

  • 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

  • 10-Year Warranty Program*

  • Designed and engineered in the U.K.

Data Sheet

Frequency response (-3 dB) <sup>(1)</sup>

85 Hz - 22 kHz BM Backcan

Frequency range (-10 dB) <sup>(1)</sup>

74 Hz - 24 kHz BM Backcan

System sensitivity (1 W @ 1 m) <sup>(2)</sup>

89 dB (1 W = 4 V for 16 Ohms)

Nominal Coverage Angle

90 degrees conical

Coverage Angle (1 kHz to 6 kHz)

105 degrees

Directivity Factor (Q)

5.6 averaged 1 kHz to 6 kHz

Directivity Index (DI)

7.0 averaged 1 kHz to 6 kHz

Power Handling <sup>(3)</sup>
Recommended Amplifier Power

100 W @ 16 Ohms

Nominal Impedance (Lo, Z)

16 Ohms

Rated maximum SPL
Transformer Taps (via front rotary switch)

7 kHz inductively coupled

Low Frequency

130 mm (5.00") mineral loaded polypropylene

High Frequency

ICT aluminium dome

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

Complete with fixed backcan

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")


Removable locking connector with screw terminals with “loop through” facility


UL-1480, UL-2043, CE

Hole cutout diameter (all models)

190 mm (7.48")

Net Weight (ea)

3.95 kg (8.70 lbs)

Included Accessories

C-Ring, tile-bridge kit, paint mask, cut-out template, grille

Optional Accessories

Plaster (mud) ring, Arco grille

Packed Quantity


At Creartion Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.

  • Most in-stock orders placed Monday-Friday before 1PM PST ship the same day. Orders placed after 1PM will ship the next day of business. General restrictions apply; please see our full shipping policy here.
  • We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.

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