QSC AC-C4T-nb AcousticCoverage Series 4.5" Full-Range Ceiling Mount Loudspeaker with No Back Can, 140 Degree Conical

Optimize speech intelligibility and background music across lobbies, conference rooms and public spaces with the QSC AC-C4T-nb AcousticCoverage 4.5" full-range ceiling loudspeaker. Designed for AV, paging and security-conscious environments, this in-ceiling speaker delivers clear voice reproduction and wide 140° conical coverage so fewer loudspeakers are required to achieve consistent coverage. The AC-C4T-nb includes a low-saturation 70/100V transformer with an 8 Ω bypass, enabling easy integration into distributed audio and public address systems while supporting monitoring and surveillance audio requirements.

The no back can (nb) design reduces cavity-induced reflections for improved clarity and simplifies installation in retrofit and new construction ceilings. With a frequency response down to 62 Hz and up to 18 kHz and a sensitivity of 93 dB, the speaker reproduces critical voice frequencies with minimal amplification—ideal for conferencing, healthcare paging, transportation terminals, and security monitoring zones. Euroblock connectors and blind-mount hardware speed up installation for integrators and contractors. Add the QSC AC-C4T-nb to your next AV, paging or security project to enhance intelligibility and coverage—contact sales or order today.

• Clear, intelligible voice reproduction for paging and conferencing thanks to a 4.5" full-range driver and 93 dB sensitivity
• Wide 140° conical dispersion covers larger areas with fewer speakers, reducing installation and system costs
• Built-in low-saturation 70/100V transformer with 8Ω bypass for flexible integration into commercial paging and distributed audio systems
• No back can (nb) design minimizes cavity reflections and simplifies retrofit and new-construction ceiling installations
• Durable, white RAL 9010 finish and blind-mount form factor for discreet, professional appearance in offices, healthcare, and transportation hubs
• Reliable 3-year limited warranty and robust Euroblock connectors for fast, secure system wiring during installations