The JBL C26CT-LS is a specialized ceiling loudspeaker assembly designed and certified for critical life safety and emergency voice evacuation (EVA) applications. This integrated system combines a high-performance 6.5-inch two-way loudspeaker with a dedicated, UL-listed back-can transformer module, engineered to deliver clear, intelligible voice announcements in compliance with stringent fire and building codes. Its primary function is to provide reliable audio for mass notification and emergency paging in public buildings such as schools, hospitals, shopping malls, airports, and high-rise offices where life safety is paramount. The design prioritizes consistent sound pressure level output, rigorous reliability, and fail-safe operation under demanding conditions.

The assembly features a weather-resistant cone driver and a tuned-port enclosure designed to optimize mid-range clarity and project voice intelligibility evenly throughout a coverage zone. The integrated transformer is a key component, providing multiple power tap settings to integrate seamlessly into 70V or 100V distributed audio systems, allowing installers to precisely calibrate output levels across different zones from a central amplifier. This design ensures that the speaker meets the specific acoustic performance requirements outlined by NFPA 72 and other international life safety standards for voice alarm systems, including minimum sound pressure levels and speech intelligibility criteria.

Installation is streamlined through a conventional T-bar or drywall ceiling grid mounting system, with the paintable, low-profile grille allowing for discrete visual integration into any commercial interior. The entire assembly is constructed from fire-retardant materials and is rigorously tested to perform reliably in high-temperature and high-humidity environments. By uniting certified life safety components with JBL's acoustic engineering, the C26CT-LS assembly provides architects, consultants, and system integrators with a single, code-compliant solution that ensures critical emergency messages are heard and understood, fulfilling both performance and regulatory obligations in modern building design.