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QSC AC-C4T 4" commercial in-ceiling speakers

Item # 907ACC4T

They provide background music and live paging, and they hide away in the ceiling so they won't ruin your decor.

They provide background music and live paging, and they hide away in the ceiling so they won't ruin your decor.

Item # 907ACC4T

Ships free today

In stock
$235.00 pair

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About the QSC AC-C4T

Eric A.

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Heard but not (necessarily) seen

QSC AC-C4T speakers help to provide background music and live paging for small businesses, and they hide away in the ceiling so they won't ruin your decor. Each speaker mounts a full-range polypropylene cone driver that provides exceptional clarity through the critical voice range. These speakers feature multi-tap transformers for use with 70-volt or 100-volt audio systems, while an 8-ohm bypass setting allows use with regular home audio receivers and amps.

Product highlights:

  • in-ceiling speakers with 4" full-range polypropylene cone driver
  • ported baffle and galvanized steel back enclosure improve bass response
  • frequency response: 70-16,000 Hz (-10db)
  • maximum SPL: 101 dB
  • sensitivity: 89 dB
  • multi-tap transformer for 70V or 100V systems
    • 16, 8, 4, 2, and 1-watt taps
    • 8-ohm bypass setting for use with regular home audio receivers and amps
  • galvanized steel back enclosure
  • paintable aluminum grille
  • rails and C-ring for ceiling tile installation included
  • 7-5/16" cutout recommended
  • 10-15/16" mounting depth
  • warranty: 3 years
  • MFR # AC-C4T

What's in the box:

  • 2 Commercial in-ceiling speakers
  • 2 Grilles
  • 2 C-rings
  • 2 Tile rails
  • 4 Screws
  • 2 Cutout Templates
  • User Manual
  • Limited Warranty Sheet

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More details on the QSC AC-C4T

Russ B.

Features & specs

Drivers per speaker 1
Woofer Size (inches) N/A
Tweeter Size (inches) N/A
System Frequency response 70-16k
Maximum SPL 101
Power Handling
Power rating 16
Peak Power rating 0
Width (inches) 8-7/16
Height (inches) 8-7/16
Depth (inches) 7-15/16
Weight 18 lbs

Product Research


AcousticCoverage Series: QSC's AcousticCoverage series is designed to offer integrators a cost effective solution for applications where voice reinforced coverage is of primary concern, while providing improved musicality.

In-Ceiling Loudspeaker: The QSC AcousticCoverage AC-C4T is a ceiling mounted 4" full-range loudspeaker with 70/100V transformer, suitable for a wide variety of voice paging and background music sound reinforcement applications.

4" Driver: A high quality 4" polypropylene cone transducer with butyl rubber surround offers pristine clarity through the critical vocal range for increased speech intelligibility. With 140-degrees of conical coverage, the AC-C4T reduces the number of loudspeakers required for even coverage in low ceiling applications.

Ported Baffle: The easy to install blind mount assembly features a ported baffle which optimally tunes the galvanized steel backcan for added musicality, creating low frequency extension down to 70 Hz.

70/100V or 8-Ohm: The AC-C4T utilizes a 16-watt low-saturation and low-loss 70/100V transformer with varying selectable taps, including an 8-ohm bypass.

4-Pole Euroblock Connector: Installers will appreciate the 4-pole Euroblock connector for loop thru wiring, located under a quick access swivel plate. Eliminating the termination hassles of star topology wiring designs, the Euroblock of the AC-C4T can accept four 18AWG pairs

Paintable White Baffle & Grille: The AC-C4T baffle and grill are QSC standard white to match complimenting QSC product families and includes UV inhibitors to prevent discoloration over time. The AC-C4T may also be painted to match any décor.

Installation Hardware: Integrated dog-ear clamps, C-rings, and tile rails are included with each pair packed assembly, complete with joining screws and cut-out templates. A safety tether tab is affixed to the adjustable conduit clasp plate for seismic sensitive installations.

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