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Product Description

8" Two Way-Speaker

• DMT™ (Directivity Matched Transition) ensures smooth, uniform frequency response over the coverage area
• Patent pending X-Mount™ enables the loudspeaker to be easily installed and deployed at a variety of angles without slipping over time
• Optional yoke mount and M10 Kit-C eyebolt kit offers additional loudspeaker deployment options
• Euroblock connectors allows pre-wiring of the system
• Low saturation 70/100V transformers with 8 ohm bypass (S8T and S10T only)
• Lightweight ABS enclosures offer long-term durability and lasting good looks
• Sealed input panel cover and powder coated aluminum grilles for added weather resistance
• Meets IEC60529 IP-54 for dust and splash resistance
• Available in black (RAL 9011) or white (RAL 9010)
• Complete EASE, CAD & BIM information available online

QSC’s AcousticDesign™ S8T surface mount loudspeakers are professional, 70/100V, 8-inch, two-way, full-range systems ideal for a wide variety of foreground and background sound reinforcement applications. Ease-of-installation is the driving principle behind QSC’s next generation of small format, surface mount loudspeakers. Innovations found on AD-S loudspeakers enable designers and integrators to quickly and easily specify and install a system. AD-S loudspeakers are also a perfect solution to serve ancillary loudspeaker needs as part of a larger installed sound system.

Housed in rugged ABS enclosures for long-term durability, S8T loudspeakers employ DMT™ (Directivity Matched Transition) which matches the LF and HF coverage at the crossover point. This ensures even coverage across the listening plane for smooth, coherent audio reproduction. The 1.4in diaphragm, 1-in exit compression driver on the S8T delivers crisp, detailed high-frequency reproduction and when combined with the matched woofers, provides full bandwidth reproduction. To further enhance performance, tunings using QSC Intrinsic Correction techniques are available for Q-Sys and future QSC amplifiers. Moreover, the low saturation transformers offer premium performance on 70/100V distributed audio lines.

Installers will appreciate flexible mounting options. Euroblock connectors allow pre-wiring of the system and the included 

X-Mount hardware enables the installer to mount the bracket and then simply lift the loudspeaker onto the mount and lock it into place. Moreover, the loudspeaker can attach to its mount on any plane to facilitate multiple deployment configurations. 

AD-S loudspeakers can easily be mounted to any weight bearing, flat surface. Knurled surfaces on the mount’s pivot points ensure that the loudspeaker deployment angle stays fixed and will not slip over time. No special tools are required to install or adjust the loudspeaker angle. S8T models also feature M10 installation points for suspending the loudspeaker via eye-bolts as well as mounting points for an optional yoke bracket.

S8T loudspeakers meet IEC60529 IP-54 for dust and splash resistance and feature sealed input panels and powder coated aluminum grilles for added weather resistance.

Presenting a clean, unobtrusive look, AD-S grilles are unadorned eliminating the need to cover obtrusive logo treatments. AD-S loudspeakers are available in either black (RAL 9011) or white (RAL 9010) and may be painted to match any décor.

To minimize impact and disposal fees at the job site, all AD-S loudspeakers are packaged in environmentally friendly, recyclable cartons.


  • Effective frequency range1: 55 – 20k Hz
  • Rated noise power / voltage2: 200 watts / 40 volts (rms)
  • Broad-band sensitivity3: 90 dB SPL
  • Coverage angle (-6 dB): 105°\
  • Directivity factor (Q): 7
  • Directivity Index: 9 dB
  • Maximum continuous SPL4: 113 dB
  • Maximum peak SPL4: 119 dB
  • Rated impedance: 8 ohms
  • Recommended amplifier power: 400 watts
  • Transformer taps:
      -  70 V: 60, 30, 15, 7.5 watts and 8 ohmbypass
      -  100V: 60, 30, 15 watts and 8 ohm bypass
  • HF transducer: 1” exit / 1.4” voice-coil compression driver
  • LF transducer: 8” weather resistant paper cone woofer, 2” / 51mmvoice-coil
  • Input connector type: Euroblock connector with parallel output terminals
  • Enclosure material: Painted ABS polymer
  • Grille material: Powder coated aluminum
  • Ingress protection: IP-54
  • Operating environment: Designed for indoor and outdoor use
  • Testing: The AD Series loudspeakers qualified for outdoor use using thefollowing tests:
      -  Salt fog: MIL-STD-810G Method 509.5 for 100hrs.
      -  Humidity: MIL-STD-810G Method 507.5, Natural cycle B2,cyclic high RH for 7 days
      -  High and low temperature: testedaccording to QSC internal standards between -20° and 50° C
  • Operating Temperature Range: -20 to 50 °C / -4 to 122 °F
  • Net weight: 24.1 lbs / 11 kg
  • Product dimensions: 17.3” x 10” x 9.9” (440 x 254 x 251mm)
  • Shipping weight: 32.1 lbs / 14.5 kg
  • Shipping dimensions: 24.3 x 13.8” X 13.8” (729 x 351 x 351mm)
  • Included accessories: X-Mount mounting system, euroblock connector, inputpanel cover
  • Optional accessories: YMS8T yoke mount, M10 Kit-C

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