QSC AD-C4T-LPZB-WH – AcousticDesign 4.5-Inch Low-Profile Zero-Bezel Ceiling Speaker (Pair, White)

Product Overview

The QSC AD-C4T-LPZB-WH is a 4.5-inch two-way, low-profile, zero-bezel ceiling speaker from the AcousticDesign Series, sold as a white pair. This flush-mount commercial ceiling loudspeaker is built for foreground and background sound reinforcement on 70V/100V distributed lines or 16-ohm bypass, with a near-invisible trimless appearance for high-end architectural interiors. The compact 4.5-inch format suits smaller rooms and supplemental fill positions where a 6.5-inch ceiling speaker would be physically oversized.

Product Description

The AD-C4T-LPZB pairs a 4.5-inch weather-treated paper cone woofer with a 0.75-inch aluminum dome tweeter mounted on a DMT (Directivity Matched Transition) waveguide for smooth, even 150-degree conical coverage. A low-loss 30-watt transformer with selectable 70V/100V taps and a 16-ohm bypass position lets integrators match the speaker to existing distributed-audio designs, and Intrinsic Correction voicings are available through the Q-SYS Platform, including CX-Q networked amplifiers. Its low-profile depth fits shallow ceiling plenums, and the 3x double-stepped dog-ear blind-mount system captures 0 to 2.25 inches of ceiling thickness for fast installation.

Because the AcousticDesign Series shares a consistent tonal character across ceiling, surface, and pendant models, the AD-C4T-LPZB blends with larger speakers in multi-zone designs. For larger coverage, see the QSC AD-C6T-LPZB-WH 6.5-inch ceiling speaker, and for a black-bezel finish add the AD-C245BG-BK black grille.

Key Features

• Zero-bezel trimless design — Flush, near-invisible ceiling appearance for high-end architectural interiors.
• Low-profile depth — Overall height of about 3.93 inches fits shallow ceiling plenums.
• 4.5-inch two-way transducer set — Weather-treated paper cone woofer with a 0.75-inch aluminum dome tweeter on a DMT waveguide.
• 150-degree conical DMT coverage — Matched waveguide-to-woofer transition for even off-axis response.
• 70V/100V with 16-ohm bypass — 30-watt transformer with selectable taps for distributed or low-impedance use.
• Intrinsic Correction ready — Optimized voicings deploy through the Q-SYS Platform and CX-Q amplifiers.
• Blind-mount dog-ear system — 3x double-stepped clamps capture 0 to 2.25 inches of ceiling thickness with a snap-fit magnetic grille.
• Plenum-rated safety listings — UL1480 and UL2043 certified for use in air-handling spaces.

Typical Applications

• Conference room
• Huddle room
• Boardroom
• Commercial meeting space
• Multi-purpose room

Technical Specifications

Frequently Asked Questions

Is the AD-C4T-LPZB-WH sold individually or as a pair? It is priced and sold as a white pair; each quantity includes two loudspeakers.

Can it run on a 70V or 100V system? Yes. A 30-watt transformer provides selectable 70V and 100V taps, plus a 16-ohm bypass for low-impedance use.

Will it match my other AcousticDesign speakers? Yes. The series maintains a consistent tonal character across ceiling, surface, and pendant models for blended, multi-zone installations.

Is a black grille available? Yes. The AD-C245BG-BK black grille is sold separately for installations requiring a black-bezel finish.

What about warranty and support? Coverage follows QSC's standard warranty terms. For current warranty details or design help, contact Creation Networks support.