Quam UL22/25 Indoor In-ceiling Speaker - 20 W RMS - White

The Quam UL22/25 Indoor In-ceiling Speaker is a purpose-built, UL Listed ceiling speaker engineered for dependable performance in commercial and institutional spaces. With UL 1480-F and UL 2043 certifications, a shallow installation profile, and tile-replacement capability, it delivers clear, intelligible sound while meeting critical safety standards. This white, low-profile speaker integrates an 8" O.D. loudspeaker, a 10 oz magnet, fire-retardant components, and a 4W-25V rotary select transformer. Its integral molded enclosure (1,412 CID) ensures consistent acoustics and simple retrofits in renovated interiors, making it ideal for background music, paging, and signaling in offices, schools, retail environments, and hospitality settings.

• UL Listing and safety compliance: The UL22/25 is a complete UL Listed device (UL 1480-F and UL 2043), designed to meet essential electrical and fire-safety codes. Its fire-protective signaling capability makes it suitable for spaces where reliable audible alerts are required, while its shallow depth and tile-replacement design simplify retrofits and minimize ceiling disruption during installation. This combination of safety and ease of installation is a key benefit for building managers, AV integrators, and installers who must meet stringent codes without sacrificing acoustical performance.
• Power, driver, and acoustic performance: Designed for solid, dependable output, the unit handles 20 W RMS, delivering ample headroom for background music and clear paging in mid-to-large areas. The 8" O.D. loudspeaker with a 10 oz magnet provides a balanced response with strong mid-range clarity and controlled bass, ensuring intelligible announcements and pleasant ambient sound. The result is consistent performance across the listening environment, even under variable room conditions or when used in multiple-zone configurations.
• Construction, depth, and tile replacement: Built with fire-retardant components and a shallow-depth form factor, the UL22/25 is designed for quick, clean ceiling installs. The integral enclosure is molded to 1,412 CID, which minimizes the need for external back boxes and supports predictable acoustic behavior. The tile-replacement design means ceilings stay visually consistent—an important consideration in commercial interiors where aesthetics matter as much as performance.
• Transformer and electrical versatility: A 4W-25V rotary select transformer is included, enabling installers to adjust power delivery to match system design and room requirements. This rotary selector provides straightforward, reliable control over output levels, helping to maintain consistent sound pressure levels across zones and ensuring compatibility with 25V distributed audio networks commonly used in commercial installations.
• Applications, aesthetics, and reliability: The UL22/25’s white finish and discreet ceiling footprint blend seamlessly with most interior designs, preserving a clean, professional look. It is particularly well-suited for indoor environments requiring durable signaling and high-quality audio—offices, classrooms, retail stores, hospitals, and hospitality venues. Its longevity and safety certifications contribute to long-term reliability, reduced maintenance, and lower total cost of ownership for facility operators.

Technical Details of Quam UL22/25 Indoor In-ceiling Speaker

• UL Listing: UL 1480-F, UL 2043
• Speaker type: 8" O.D. loudspeaker
• Magnet weight: 10 oz
• Power handling: 20 W RMS
• Transformer: 4W-25V rotary select transformer
• Enclosure: Integral molded enclosure, 1,412 CID
• Depth: Shallow-depth design for tile replacement installations
• Tile replacement: Yes
• Finish/color: White
• Fire retardant components: Included

How to install Quam UL22/25 Indoor In-ceiling Speaker

Installing the UL22/25 is designed to be straightforward for qualified AV technicians and facility installers. Follow these general steps to ensure a secure, compliant installation that preserves ceiling aesthetics and delivers reliable performance.

• Plan the installation location, considering ceiling structure, wiring pathways, and line-of-sight for optimal sound distribution. Verify that the chosen sites comply with local codes and building standards, and prepare any required permits or documentation.
• Power down the system and identify the 25V distribution wiring. Confirm that the network or amplifier you intend to pair with the UL22/25 supports 25V operation and appropriate impedance for your speaker count.
• Cut the ceiling opening to accommodate the 8" O.D. loudspeaker while leaving sufficient edge clearance for the tile-replacement mounting and the integrated enclosure. Use proper cutting tools and safety equipment to prevent damage to surrounding tiles or structure.
• Connect the wiring to the rotary 4W-25V transformer input, ensuring secure, code-compliant terminations. Route cables carefully to avoid interference and to facilitate future maintenance. Double-check that polarity is correct and all connections are tightened to spec.
• Insert the UL22/25 into the ceiling opening and secure it using the built-in mounting mechanism or recommended hardware. Reinstall the ceiling tile, verify the alignment, and perform a system test to confirm sound output, intelligibility, and proper signaling functionality across zones.
• Power up the system, test the speaker at multiple levels, and confirm that the transformer settings yield the desired SPL in the intended space. Document the installation in a commissioning sheet, noting location, transformer setting, and any impedance considerations for future service or expansions.

Frequently asked questions

• Q: Is the Quam UL22/25 UL Listed?
  A: Yes. It is UL 1480-F and UL 2043 listed, ensuring safety and compatibility with code requirements for indoor signaling and audio.
• Q: What is the power rating of the UL22/25?
  A: It is rated for 20 W RMS, providing ample headroom for background music, paging, and signaling in most mid-to-large spaces.
• Q: Can this speaker be used as a tile-replacement solution?
  A: Yes. The unit is designed with tile-replacement capabilities to preserve ceiling aesthetics during retrofits and renovations.
• Q: What kind of transformer does it include?
  A: It includes a 4W-25V rotary select transformer for adjustable output and compatibility with 25 V distributed audio systems.
• Q: What environments is the UL22/25 best suited for?
  A: Indoor commercial spaces such as offices, classrooms, retail, hospitality, and other areas needing clear audio plus reliable signaling with a discreet white finish.