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This pair of black 6.5" QSC AcousticDesign Series AD-S6 is a surface mounted, 16 ohm, 6.5" passive two-way loudspeaker system ideally suited for a wide variety of foreground and background sound reinforcement applications, including restaurants, retail, audio/visual, education, concourses, casinos, transportation terminals, houses of worship, and large system ancillary support. Designed for integrators looking for a premium-quality installed sound solution where coverage, performance, and aesthetics are paramount. The speakers are easy to install and offer high weather resistance (IP54) for use outdoors.

Each speaker utilizes a separately available 150W amplifier to power the 6.5" weather treated paper cone woofer and a 1" silk-dome tweeter, which have matching sensitivity and performance for remarkable sound reproduction with a wide frequency range (58 Hz to 20 kHz) and a powerful peak SPL (116 dB). With a 16-ohm rating, each speaker is designed for distributed systems without the need for a transformer, offering optimal sonic performance.

The included X-Mount system achieves an unprecedented ease-of-installation in either horizontal, vertical, wall, or ceiling deployments. The knurled surfaces at the pivot planes ensure the load will not drift or sag over time; the articulation marks allow pre-configuration of the X-Mount, while on the ground with no special tools required. Once secure, the loudspeaker installs in seconds, allowing the installer to work safer, smarter, and faster with repeatable results.

The AD-S6 speakers feature QSC's Directivity Matched Transition (DMT) to matches the coverage angle of the woofer at the crossover frequency with the horn pattern to ensure a uniform response across the coverage area. Additionally, the speakers are compatible with QSC's Q-Sys platform, which is included in CXD Series amplifiers. The advanced voicing filter sets from Q-Sys's Intrinsic Correction techniques ensures a smooth power response, resulting in accurate performance in a wide range of acoustic spaces with little or no EQ.

The rear panel utilizes a four-pin Euroblock connector for input and thru-output for connecting additional speakers. A rugged ABS enclosure provides long-term durability. What's more, each speaker includes a sealed input panel cover to protect the speaker's input section from the elements. A powder coated aluminum grille adds additional weather protection from dust and splashes.

More Information

Key Features

  • Rated for Indoor or Outdoor Use
  • IP54 Dust and Splash Resistant
  • X-Mount System for Fast and Easy Install
  • Lightweight ABS Enclosure
  • 58 Hz to 20 kHz Frequency Range
  • 116 Peak SPL Output
  • 105° Conical Dispersion
  • DMT Waveguide + Intrinsic Correction
  • Includes Mounting Hardware & Input Cover
  • Includes Euroblock Connector

Technical Specification


Active or Passive Passive
Number of Included Speakers 2
Speaker Configuration 2-Way
Power Handling 150 W RMS
300 W Program
Recommended Amplifier Power 300 W
Impedance 16 Ohms
Enclosure Type Sealed
HF Driver 1 x 1" / 25.4 mm Waveguide-Coupled Silk Dome Tweeter
HF Voice Coil 1" / 25.4 mm
LF Driver 1 x 6.5" / 165.1 mm Paper Woofer
LF Voice Coil 1.5" / 38.1 mm
Frequency Range 58 Hz to 20 kHz
Maximum SPL 116 dB SPL (Peak)
110 dB SPL (Continuous)
Sensitivity 89 dB SPL (Average)
Coverage Angle 105° (Conical)
Directivity 7 dB (Directivity Index)
5 dB (Directivity/Q Factor)
Maximum Input Voltage 49 V RMS
I/O 1 x Block 4-Pin Speaker Input/Thru
Water / Weather Resistance Dust Resistant, Water Resistant, Weather Resistant
IP Rating IP54
Operating Temperature -4 to 122°F / -20 to 50°C
Color Black
Mounting Ball Mount (Rear)
Construction Material ABS, Aluminum
Dimensions 14.4 x 8.5 x 8.5" / 36.58 x 21.59 x 21.59 cm
Weight 11.6 lb / 5.3 kg
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