This QSC AC-C4T AcousticCoverage Series 4 Inch Ceiling-Mount Loudspeakers (Pair) features a 4-inch polypropylene cone transducer with a butyl rubber surround, delivering clear audio with a frequency response of 70 Hz to 16 kHz. Its wide 140-degree conical coverage makes it suitable for a variety of commercial sound applications.
The AC-C4T features a 16W low-saturation, low-loss 70/100V transformer with selectable power taps and an 8-ohm bypass option.
A rotary tap-selector switch is accessible beneath the powder-coated steel grille for convenient configuration.
The easy-to-install blind-mount assembly includes a ported baffle and galvanized steel back can.
A 4-pole Euroblock connector beneath a quick-access swivel plate supports input and loop-through wiring.
A safety tether tab on the adjustable conduit clasp plate supports installations where additional seismic precautions are required.
Each pair includes a C-ring, tile rails, joining screws, and a cutout template for installation.
The baffle and grille feature a QSC standard white RAL 9010 finish with UV inhibitors to help prevent discoloration. The components may also be painted to match the surrounding decor.
QSC AC-C4T AcousticCoverage Series 4 Inch Ceiling-Mount Loudspeakers (Pair) Features:
- 4-inch full-range transducer delivers clear sound with a frequency response of 70 Hz to 16 kHz.
- Ported baffle optimizes low-frequency response.
- Low-saturation 70/100V transformer with selectable taps and 8-ohm bypass.
- 4-pole Euroblock connector simplifies system wiring and supports loop-through connections.
- White RAL 9010 finish with UV inhibitors to help prevent discoloration; paintable to match different interiors.
- Suitable for voice paging and background music in office buildings, healthcare facilities, concourses, transportation terminals, and larger sound systems.
- Blind-mount assembly with galvanized steel back can for in-ceiling installation.
- Safety tether tab supports installations requiring additional seismic precautions.

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HDTV Supply has QSC Level 1 certified expertise. Our team has completed QSC Level 1 Training, demonstrating foundational knowledge of the QSC platform, including system design, hardware and software, programming, and troubleshooting.
This training helps us provide knowledgeable product guidance when customers are selecting and deploying Q-SYS solutions. When you purchase Q-SYS products from HDTV Supply, you are working with a team that understands the Q-SYS platform and can help you make informed product and system decisions.
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QSC AC-C4T AcousticCoverage Series 4 Inch Ceiling-Mount Loudspeakers (Pair) Specifications:
| Speaker | |
|---|---|
| Frequency Range | 70 Hz to 16 kHz |
| Power Rating | 16 W |
| Voltage Rating | 11.3 Vrms |
| Sensitivity | 89 dB SPL (Broadband) |
| Coverage Angle | 140° at -6 dB (500 Hz to 5 kHz) |
| Maximum SPL (Continuous) | 101 dB |
| Maximum SPL (Peak) | 107 dB |
| Rated Impedance | 8 Ohms |
| 70V Transformer Taps | 16 / 8 / 4 / 2 / 1 W and 8 Ohms Bypass |
| 100V Transformer Taps | 16 / 8 / 4 / 2 W and 8 Ohms Bypass |
| Transducer | 4-inch (10.2 cm) Polypropylene Cone with Butyl Rubber Surround |
| Connectivity | |
| Input Connector | Euroblock Connector with Parallel Output Terminals |
| Physical | |
| Baffle Material | Painted ABS Polymer |
| Grille Material | Powder-Coated Steel |
| Back Can Material | Galvanized Steel |
| Testing and Certifications | UL 1480 and UL 2043; safe for use in air-handling spaces |
| Diameter | 8.4 inches (21.4 cm) |
| Height | 7.9 inches (20.1 cm) |
| Cutout Diameter | 7.31 inches (18.57 cm) |
| Ceiling Capture Thickness | 0.25 to 1.50 inches (0.63 to 3.81 cm) |
| Weight | 4.9 lb (2.2 kg) |
| Packaging Info | |
| Package Weight | 14.3 lb |
| Box Dimensions (L × W × H) | 24.8 × 11 × 11 inches |
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QSC AC-C4T Manuals and Documentation
Why not buy this QSC AC-C4T AcousticCoverage Series 4 Inch Ceiling-Mount Loudspeakers (Pair) from HDTV Supply today?
QSC AC-C4T AcousticCoverage Series Ceiling Loudspeaker FAQs
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QSC AC-C4T Warranty Information
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QSC AC-C4T AcousticCoverage Series Ceiling Loudspeaker Reviews
Customer reviews and ratings for the QSC AC-C4T AcousticCoverage Series 4 Inch Ceiling-Mount Loudspeakers (Pair) will appear in this section.