QSC AC-C4T – AcousticCoverage 4-Inch 2-Way Ceiling Loudspeaker (Pair, White)

Product Overview

The QSC AC-C4T is a 4-inch AcousticCoverage Series full-range ceiling loudspeaker, sold as a white pair, suited to audio/video conferencing reinforcement, voice paging, and background music. Its 70V/100V transformer with an 8 Ω bypass makes it easy to deploy on distributed audio lines, and its wide conical coverage lets it cover an area evenly with fewer speakers, even in low-ceiling rooms. The compact format is ideal for offices, retail, and small meeting spaces.

Product Description

The AcousticCoverage Series prioritizes speech clarity through the critical vocal range while improving on the musicality of typical paging/BGM products. The AC-C4T uses a weather-treated 4-inch (100 mm) paper-cone transducer with a whizzer cone to extend high-frequency dispersion, delivering an effective frequency range of 62 Hz – 18 kHz and broad 140° conical coverage. A 6-watt low-saturation, low-loss 70V/100V transformer uses color-coded bare-wire terminations — 70V taps at 6, 3, 1.5, and 0.75 W and 100V taps at 6, 3, and 1.5 W — with an 8 Ω bypass. The blind-mount assembly uses four dog-ears under a torsion-fit, powder-coated steel grille, and a 7-inch cutout accommodates the enclosure. Model-specific Intrinsic Correction voicings are available through the Q-SYS Platform and CXD Series amplifiers. Finished in white (RAL 9010) with UV inhibitors, the AC-C4T can also be painted to match decor. For larger rooms, step up to the AC-C6T or AC-C8T.

Key Features

• 4-inch full-range ceiling speaker (pair) — Compact coverage for offices, retail, and small meeting rooms.
• Effective range 62 Hz – 18 kHz — Clear speech reproduction with improved musicality for background music.
• 140° conical coverage — Very wide coverage that suits low-ceiling rooms and reduces speaker count.
• 70V/100V with 8 Ω bypass — 6 W transformer with color-coded taps for distributed audio or low-impedance use.
• Blind-mount installation — Four dog-ears under a torsion-fit powder-coated steel grille for fast fitting.
• Intrinsic Correction ready — Optimized voicings via the Q-SYS Platform and CXD Series amplifiers.
• Paintable white finish — RAL 9010 with UV inhibitors to resist discoloration.

Technical Specifications