Valcom S-521B Lay-In Ceiling Speaker with Volume Control, 25/70V, 1' x 2'

Deliver clear, reliable voice paging and background music with the Valcom S-521B Lay-In Ceiling Speaker with Volume Control. Designed for professional environments, this 1' x 2' pro speaker installs quickly into suspended ceilings and includes a V-TBAR for fast mounting—minimizing downtime on retrofit and new-construction jobs. The speaker's integral backbox meets UL181 three-hour burn test requirements, giving you a code-conscious solution that improves safety and simplifies inspections. With a 25/70V transformer and an 8" full-range driver offering a frequency response from about 70 Hz to 17 kHz, the S-521B delivers intelligible voice reproduction for paging, monitoring and security announcements. The accessible volume control (adjustable through the perforated grille with a standard 1/8" screwdriver) lets technicians fine-tune levels without ceiling access. Its scuff-resistant perforated steel grille and white baked-on acrylic enamel finish ensure a professional, unobtrusive appearance in lobbies, retail spaces, schools, healthcare facilities and surveillance hubs. Specify the Valcom S-521B for reliable performance in security, surveillance and monitoring systems—order now to streamline your next installation.

• Quick lay-in installation for 1' x 2' suspended ceilings, reducing labor time and disruption
• UL181 three-hour rated integral backbox for code-compliant fire safety and reliable installations
• Built-in volume control accessible through the perforated grille for fast, on-site level adjustments
• 25/70V transformer supports distributed paging and background music across commercial systems
• Durable perforated steel grille with baked-on white enamel for a low-profile, long-lasting appearance
• Optimized for security, surveillance and monitoring applications where clear voice reproduction is critical