QSC AD-S6T – AcousticDesign 6.5-Inch 2-Way 150W Surface-Mount Loudspeaker (Pair, Black)

Product Overview

The QSC AD-S6T is a transformer-equipped 6.5-inch surface-mount loudspeaker sold as a pair for 70V/100V distributed audio or 8-ohm operation. Part of the AcousticDesign Series, it is engineered for foreground and background music in restaurants, retail, education, transportation terminals, and houses of worship.

Supplied with the X-Mount system, the AD-S6T delivers even 105° conical coverage through QSC's DMT waveguide and is built for both indoor and covered outdoor commercial installations with IP54 weather resistance.

Product Description

Each AD-S6T uses a 6.5-inch weather-treated paper-cone woofer (1.5-inch voice coil) and a horn-loaded 1-inch silk-dome tweeter, covering 60 Hz to 20 kHz (-10 dB) with 89 dB sensitivity and a 116 dB peak SPL. DMT (Directivity Matched Transition) aligns woofer and waveguide directivity at the crossover for coherent, uniform coverage.

A 60W low-loss, low-saturation transformer offers 70V taps (60/30/15/7.5W) and 100V taps (60/30/15W) plus an 8-ohm bypass, with a rear rotary selector protected by a weather grommet. A 4-pole Euroblock connector with loop-thru wiring sits beneath a sealed input cover.

The sealed ABS enclosure and powder-coated aluminum grille meet IEC60529 IP-54 for dust and splash resistance. QSC Intrinsic Correction voicings are available through Q-SYS processing or CXD/CX-Q amplifiers. Complete EASE, CF2, CAD, and BIM data is available for system design. For a non-transformer 16-ohm alternative, see the QSC AD-S6.

Key Features

• 70/100V transformer with 8-ohm bypass — A 60W low-loss transformer offers selectable distributed-line taps plus a low-impedance bypass for flexible deployment.
• DMT 105° conical coverage — Directivity Matched Transition produces a coherent transition between transducers and improved off-axis response.
• Matched two-way drivers — A 6.5-inch weather-treated woofer and horn-loaded 1-inch silk-dome tweeter are matched in sensitivity for full-range reproduction.
• Weather-protected tap selector — The rear-panel rotary tap selector is shielded by a weather grommet for outdoor-capable reliability.
• X-Mount system included — Enables fast horizontal, vertical, wall, or ceiling installation at repeatable angles with no slippage over time.
• IP54 construction — A rugged ABS enclosure and powder-coated aluminum grille meet IEC60529 IP-54 for dust and splash resistance.
• Q-SYS Intrinsic Correction ready — Advanced voicing filter sets are available through Q-SYS or CXD/CX-Q amplifier platforms.
• Design data available — Complete EASE, CF2, CAD, and BIM information supports accurate system modeling and specification.

Typical Applications

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

Technical Specifications

Competitor Comparison

Frequently Asked Questions

What transformer taps does the AD-S6T provide?
It offers 70V taps of 60/30/15/7.5 W, 100V taps of 60/30/15 W, and an 8-ohm bypass, selected via a weather-protected rear rotary selector.

How does the AD-S6T differ from the AD-S6?
The AD-S6T adds a 60W 70/100V line transformer for distributed audio, while the AD-S6 is a 16-ohm low-impedance design without a transformer.

Can I model the AD-S6T before installation?
Yes. QSC publishes complete EASE, CF2, CAD, and BIM data so integrators can predict coverage and document the installation in advance.

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-S6.