Tannoy CMS 403DCE 4″ Full Range Directional Ceiling Loudspeaker with Dual Concentric Driver (Blind Mount)

The Tannoy CMS 403DCE is a professional 4-inch full-range directional ceiling loudspeaker designed for commercial and installed audio applications. Featuring Tannoy’s dual concentric (DC) 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)

The blind-mount (BM) back-can design allows the enclosure to be installed during construction, with the speaker assembly added later. This ensures seamless integration into ceilings while protecting internal components from damage during installation.

The CMS 403DCE supports 70V / 100V line distributed systems as well as 16-ohm low-impedance operation, giving maximum flexibility for multi-zone commercial installations. A front-accessible low-loss transformer tap selector allows installers to quickly adjust power levels without removing the speaker.

Constructed with a durable ABS back-can and powder-coated steel grille, this speaker is engineered for long-term reliability in offices, hotels, retail stores, restaurants, and conference facilities. Its directional design with adjustable tilt and rotation ensures optimal coverage, directing sound precisely where it’s needed.

Features

• 4″ full-range directional ceiling loudspeaker with dual concentric driver
• Blind-mount back-can for pre-installation during construction
• Adjustable tilt and 360° rotation for directional sound coverage
• Supports 70V / 100V distributed systems and 16-ohm low-impedance operation
• Front-accessible low-loss 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 both voice and music applications

Specifications