The Tannoy CMS 503ICT BM is a high-performance, full-bandwidth ceiling loudspeaker designed for demanding audio applications where both superior sound quality and ease of installation are essential. This 200-watt peak loudspeaker incorporates Tannoy's proprietary ICT (Inductive Coupling Technology) point-source driver, which provides a wide frequency range, enhanced intelligibility, and exceptional long-term reliability. The driver's extended frequency range, combined with its 90° conical coverage pattern, ensures consistent sound distribution across a wide area. This makes the CMS 503ICT BM an ideal choice for environments requiring constant music and speech reinforcement, such as retail spaces, houses of worship, corporate AV systems, and more.
The CMS 503ICT BM is a blind-mount version, meaning it is designed for easy and efficient installation, even in applications where the ceiling space is limited. The speaker features an acoustically enhanced zinc-plated steel back-can that ensures superior low-frequency performance. The 3-way self-aligning clamp system allows for fast and secure mounting, with extra clamp extension to accommodate thicker ceiling panels and a locking design that prevents over-tightening. The inclusion of a removable locking screw terminal connector with loop-through functionality ensures a secure and simple wiring process. Additionally, the loudspeaker comes equipped with a powder-coated steel mesh grille that offers dust protection and can be painted for custom finishes. Optional accessories like the Arco grille and plaster (mud) ring are available for a more aesthetically pleasing installation.
The CMS 503ICT BM is optimized for use with LAB GRUPPEN LUCIA amplifiers, which can accommodate up to eight CMS Series loudspeakers per channel. The speaker offers multiple transformer taps for 70V, 100V, and 16-ohm direct input systems, providing flexible configuration options for a wide range of installations. The 30W line transformer features easily accessible tap switching for quick adjustments, making it easy to optimize the loudspeaker for different applications. With a frequency response of 85 Hz to 22 kHz (-3 dB) and a maximum SPL of 112 dB peak, the CMS 503ICT BM delivers clear, powerful audio for both speech and music reproduction in any environment. Certified with UL-1480 for general signaling systems and UL-2043 for air-handling spaces, the CMS 503ICT BM meets stringent safety standards for both commercial and residential installations.
Features
- 200W peak power handling for superior audio performance in compact ceiling installations
- 5" ICT point-source driver for extended frequency range and exceptional intelligibility
- 90° conical coverage ensures wide and consistent sound distribution
- Frequency response: 85 Hz - 22 kHz (-3 dB), with a maximum SPL of 112 dB peak
- Low-insertion loss 30W transformer with multiple taps for 70V, 100V, and 16-ohm direct input systems
- Acoustically enhanced zinc-plated steel back-can for superior low-frequency performance
- Self-aligning 3-way clamp system for fast and secure installation
- Powder-coated steel mesh grille with dust protection, removable for custom painting
- Tile support rails and C-ring for easy and secure mounting
- Dimensions: Bezel diameter: 8.11 inches, Hole cutout diameter: 7.48 inches
- Nominal impedance of 16 ohms for easy integration into various audio systems
- Optimized for LAB GRUPPEN LUCIA amplifiers, supporting up to 8 speakers per channel
- Includes C-ring, tile-bridge kit, paint mask, cut-out template, and grille
- Optional Arco grille and plaster (mud) ring for professional installation finishes
- Compliance: UL-1480, UL-2043, CE certified for safety and reliability
Specifications
Performance
- Frequency response (-3 dB): 85 Hz - 22 kHz BM Backcan
- Frequency range (-10 dB): 74 Hz - 24 kHz BM Backcan
- Frequency range (-10 dB): 71 Hz - 24 kHz PI Backcan
- System sensitivity (1 W @ 1 m): 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:
- Average: 50 W
- Programme: 100 W
- Peak: 200 W
- Recommended Amplifier Power: 100 W @ 16 Ohms
- Nominal Impedance (Lo, Z): 16 Ohms
- Rated maximum SPL:
- Average: 106 dB
- Peak: 112 dB
- Transformer Taps (via front rotary switch):
- 70 V: 30 W (165 Ω) / 15 W (330 Ω) / 7.5 W (660 Ω) / 3.75 W (1320 Ω) / OFF & low impedance operation
- 100 V: 30 W (330 Ω) / 15 W (660 Ω) / 7.5 W (1320 Ω) / OFF & low impedance operation
Transducers
- Low Frequency: 130 mm (5.0") mineral loaded polypropylene
- High Frequency: ICT aluminium 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): N/A
- Pre Install (PI): N/A
- Cable Entry Options: Cable clamp & squeeze connector for conduit up to 22 mm
- Conduit Knockouts on PI Backcan: N/A
- Connectors: Removable locking connector with screw terminals with "loop through" facility
- Compliance: UL-1480, UL-2043, CE
- Dimensions:
- Bezel Diameter: 8.11 inches
- Front of ceiling to rear of backcan: N/A
- BM Model: Front of ceiling to rear of backcan: 7.42 inches
- BM Model: Front of ceiling to top of safety loop: 8.10 inches
- PI Model: Front of ceiling surface to rear of speaker unit: 5.19 inches
- PI Model: Front of accessory backcan bezel to top of safety loop: 6.08 inches
- Hole cutout diameter (all models): 7.48 inches
- Net Weight (ea):
- CMS 503ICT BM: 6.70 lbs
- CMS 503ICT PI: 6.50 lbs
- PI Backcan: 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