QSC AD-S5T – AcousticDesign 5.25-Inch 2-Way 100W Surface-Mount Loudspeaker (Pair, Black)

Product Overview

The QSC AD-S5T is a transformer-equipped 5.25-inch surface-mount loudspeaker for commercial foreground and background music installations. Sold as a pair and supplied with the X-Mount bracket system, it is built for 70V/100V distributed audio or 8-ohm operation in restaurants, retail, education, and commercial AV spaces.

As part of QSC's AcousticDesign Series, this commercial-grade installation speaker delivers even 115° conical coverage using QSC's DMT waveguide. Its IP54-rated weather resistance makes it suitable for covered outdoor and indoor commercial deployments alike.

Product Description

Each AD-S5T pairs a 5.25-inch weather-treated paper-cone woofer on a 1-inch voice coil with a 1-inch silk-dome tweeter matched in sensitivity for full-range reproduction across a 65 Hz to 20 kHz (-10 dB) frequency range. The speaker handles 100W RMS and produces a peak maximum SPL of 116 dB.

A low-saturation, low-loss 70/100V transformer with an 8-ohm bypass tap lets integrators deploy the AD-S5T on distributed lines or low-impedance amplifier channels. A rear-panel rotary tap selector sits under a weather grommet, and a 4-pole Euroblock connector with loop-thru wiring resides under a sealed input cover to keep moisture away from the terminals.

DMT (Directivity Matched Transition) aligns the directivity of the woofer and high-frequency waveguide at the crossover point for a coherent transition between transducers and improved off-axis response. Advanced voicing filter sets using QSC Intrinsic Correction are available through the Q-SYS Ecosystem and CX-Q Series amplifiers. For larger rooms, integrators often step up to the QSC AD-S6T or AD-S8T in the same series.

Key Features

• X-Mount system included — The supplied award-winning X-Mount enables fast horizontal, vertical, wall, or ceiling installation at a variety of angles with no slippage over time.
• 70/100V transformer with 8-ohm bypass — A low-saturation, low-loss transformer supports distributed audio systems and bypasses to 8 ohms for low-impedance amplifier channels.
• DMT coverage control — Directivity Matched Transition delivers consistent 115° conical coverage and improved off-axis response across the listening area.
• Matched two-way driver complement — A 5.25-inch weather-treated woofer and 1-inch silk-dome tweeter are matched in sensitivity for natural full-range reproduction.
• IP54 weather resistance — A rugged ABS enclosure and powder-coated aluminum grille exceed IP54 ratings for dust and splash resistance in indoor or covered outdoor installations.
• Sealed, weather-protected wiring — A 4-pole Euroblock connector with loop-thru wiring sits under a sealed input cover, and the rotary tap selector is protected by a weather grommet.
• Q-SYS Intrinsic Correction ready — Advanced voicing filter sets are available through Q-SYS processing or CXD/CX-Q amplifier platforms for optimized response.

Typical Applications

• House of worship
• Commercial meeting space
• Multi-purpose room
• Training room
• Auditorium

Technical Specifications

Competitor Comparison

Frequently Asked Questions

Can the AD-S5T run on a 70V or 100V distributed line?
Yes. The built-in low-loss transformer provides selectable 70V and 100V taps, and an 8-ohm bypass for low-impedance amplifier channels, set via the rear rotary selector.

Is the AD-S5T suitable for outdoor installation?
It exceeds IP54 for dust and splash resistance, making it appropriate for covered or semi-exposed outdoor commercial locations. For fully exposed weather, QSC's dedicated outdoor series should be considered.

How does the AD-S5T integrate with a Q-SYS system?
Intrinsic Correction voicing files for the AD-S5T can be applied through Q-SYS processing or CX-Q/CXD amplifiers, optimizing response with minimal manual EQ.

What warranty and support come with this loudspeaker?
QSC installed loudspeakers are covered under QSC's standard limited warranty; refer to QSC's published warranty terms for the current coverage period applicable to this model. Creation Networks provides pre- and post-sale support for system design and integration questions.

Explore related QSC products at Creation Networks, including the QSC AD-S6T.