The Tannoy CMS601 is a professional 6-inch full-range ceiling loudspeaker that incorporates Tannoy's signature Dual Concentric driver technology, where a high-frequency compression driver is mounted coaxially within the center of a low-frequency cone. This point-source design ensures that sound waves from both drivers originate from the same physical location, resulting in exceptional phase coherence, precise imaging, and uniform dispersion throughout the listening area. The speaker is engineered for high-fidelity background music, paging, and audio reinforcement in commercial installations such as retail stores, restaurants, hotels, and corporate offices. Its full-range capability delivers clear, articulate sound with a balanced frequency response, making it suitable for both music reproduction and speech intelligibility.

A key feature of the CMS601 is its broad, even dispersion, achieved through the integrated high-frequency waveguide that surrounds the central tweeter. This design minimizes beaming and ensures consistent tonal balance for listeners both on and off-axis. The speaker is equipped with a multi-tap transformer, allowing seamless integration into constant voltage (70V/100V) public address systems, which are standard in commercial audio for driving many speakers over long distances. For applications requiring the highest audio fidelity, it can also be operated in a low-impedance (8-ohm) mode, bypassing the transformer for improved dynamic range and transient response. This flexibility allows system designers to optimize performance based on specific installation requirements.

Constructed for durability and professional installation, the speaker features a robust, paintable steel grille and a secure dog-leg clamping mechanism that ensures a rattle-free fit in various ceiling types and thicknesses. The enclosure includes a sealed back can that protects the driver from dust, insulation, and moisture in the plenum space, and more importantly, prevents rear sound waves from canceling out the bass output, ensuring full and accurate low-frequency reproduction. The grille is magnetically attached, allowing for easy removal for painting to match the ceiling exactly. The Tannoy CMS601 represents a blend of advanced acoustic engineering and practical installation features, offering a reliable, high-performance solution for commercial sound systems.