Tannoy CMS 503DC BM 5″ Full Range Ceiling Loudspeaker with Dual Concentric Driver (Blind Mount)

The Tannoy CMS 503DC BM is a professional 5-inch full-range ceiling loudspeaker designed for commercial and installed audio applications. Featuring Tannoy’s dual concentric driver technology, it delivers precise point-source audio with excellent phase coherence, making it ideal for speech and music reproduction in distributed audio systems. (theaudiospecialists.eu)

This speaker is part of Tannoy’s CMS series and comes with a blind-mount (BM) back-can, allowing the enclosure to be installed during construction while the speaker assembly is fitted later. The design ensures clean integration into ceilings and protects internal components during building work.

The CMS 503DC BM supports 70V/100V line distributed systems as well as 16-ohm low-impedance operation, providing maximum flexibility for multi-zone installations. A front-accessible low-loss transformer tap selector allows installers to easily configure power levels during commissioning.

Constructed with a durable ABS back-can and powder-coated steel grille, this loudspeaker is designed for long-term reliability in professional environments such as offices, hotels, restaurants, retail stores, and conference rooms. Its wide dispersion pattern ensures consistent sound coverage across listening areas.

Features

• 5″ full-range ceiling loudspeaker with dual concentric driver
• Blind-mount back-can for pre-installation during construction
• Wide dispersion for even coverage in commercial spaces
• Supports 70V / 100V distributed audio systems and 16-ohm low-impedance operation
• Low-loss front-accessible transformer tap selector
• Powder-coated steel grille, paintable to match ceiling décor
• Durable ABS back-can for long-term reliability
• Ideal for offices, hotels, restaurants, retail stores, and conference rooms
• High-quality reproduction for voice and music applications

Specifications