QSC AC-S4T-BK Surface Mounted 4.5" 2-Way 130° Conical Loudspeaker, Black

Designed for reliable voice paging, BGM and security-area audio, the QSC AC-S4T-BK surface-mounted 4.5-inch 2-way 130° conical loudspeaker delivers clear, intelligible coverage where speech clarity matters most. As part of QSC's AcousticCoverage line, this compact pro speaker pairs a 4" polypropylene cone and 1" aluminum dome tweeter with a tuned ported baffle to extend low end down to 70 Hz while providing natural vocal presence up to 20 kHz. The 16W low-saturation 70/100V transformer (with 8 ohm bypass) makes it easy to wire multi-speaker distributed systems for paging, monitoring and background music without sacrificing audio quality. Installers benefit from loop-thru Euroblock wiring and an included yoke mount for fast, secure mounting; the UV-treated ABS enclosure and paintable grille ensure discreet integration in security, surveillance and commercial spaces. For system-level tuning, QSC Intrinsic Correction via Q-Sys platforms or CXD amplifiers delivers optimized voicing out of the box. Ideal for retail, corporate, healthcare and monitoring applications — add the AC-S4T-BK to your next project for dependable speech intelligibility and efficient coverage.

• Broad 130° conical coverage reduces speaker count and delivers consistent voice paging and background music across large open areas
• Clear speech intelligibility from a 4" polypropylene woofer and 1" aluminum dome tweeter, improving customer experience in retail, corporate and security settings
• 70/100V transformer with selectable taps plus 8 ohm bypass simplifies distributed audio and paging system design for integrators
• Quick installation with loop-thru 4‑pole Euroblock connector and included yoke mount, saving labor time on large deployments
• Durable UV-treated ABS enclosure and paintable grille for discreet, long-lasting integration in surveillance, monitoring and pro audio environments