QSC AD-S8T High output 8″ + 1″ HF weatherproof surface mount speaker. 70/100V/8? (Inc. X-Mount bracket). Black or White.

Original price was: $1,359.00.Current price is: $1,223.10.

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QSC AD-S8T AcousticDesign? is a surface mounted 70/100 V, 8″ two-way loudspeaker system, ideally suited for a wide variety of foreground and
background sound reinforcement applications. AcousticDesign? series offers integrators a premium quality installed sound solution where performance, coverage, and aesthetics are paramount. Combined with unprecedented ease-of-installation and high weather resistance, the AcousticDesign? series provides integrators a versatile and confident install solution. The AD-S8T features a high quality 8? weather treated paper cone woofer on a 2? voice coil. A carefully selected 1? exit, 1.4? compression driver perfectly matches the sensitivity and performance of the woofer for outstanding full-range reproduction.


  • 8-inch weather treated woofer; 1.4-inch compression driver
  • 105° conical DMT™ coverage
  • 60 watt low-saturation and low-loss 70/100V transformers with 8Ω bypass
  • Maximum peak SPL 119 dB (8Ω bypass)
  • Directivity Matched Transition® (DMT) ensures smooth, uniform frequency response over the coverage area
  • X-Mount™ system enables the loudspeaker to be easily installed and deployed at a variety of angles with no slippage over time
  • Optional Yoke mount and M10 Kit-C for additional installation versatility
  • Advanced voicing filter sets using QSC Intrinsic Correction™, available through either Q-SYS or CXD amplifier platform
  • 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, CF2, CAD, and BIM information available online


System Details AD-S8T
Effective frequency range1 55 Hz – 20 kHz
Rated noise power / voltage2 200 watts / 40 volts (rms)
Broadband sensitivity3 90 dB SPL
Coverage angle (-6 dB) 105° conical DMT™
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
(loudspeaker “program” power)
400 watts
Transformer taps 70 V: 60, 30, 15, 7.5 W and 8Ω bypass

100V: 60, 30, 15 W and 8Ω bypass

HF transducer 1-inch exit / 1.4-inch voice coil compression driver
LF transducer 8-inch weather resistant paper cone woofer

2-inch / 51 mm voice coil

Input connector type Euroblock connector with parallel output terminals
Enclosure material Painted ABS polymer
Grille material Powder coated aluminum
X-Mount material Powder coated aluminum
Enclosure Details
Ingress protection IP-54
Operating environment Designed for indoor and outdoor use
Testing The AD Series loudspeakers qualified for outdoor use using the following tests:

  • Salt fog: MIL-STD-810G Method 509.5 for 100 hrs.
  • Humidity: MIL-STD-810G Method 507.5, Natural cycle B2, cyclic high RH for 7 days
  • High and low temperature: tested to QSC internal standards between -20° and 50° C
Net weight 24.1 lb / 11 kg
Product dimensions
(HWD) inches
17.3 × 10 × 9.9
Product dimensions
(HWD) mm
440 × 254 × 251
Shipping weight 32.1 lb / 14.5 kg
Shipping dimensions
(HWD) inches
24.3 × 13.8 × 13.8
Shipping dimensions
(HWD) mm
729 × 351 × 351
Included accessories X-Mount mounting system, Euroblock connector,
input panel cover
Optional accessories YMS8T yoke mount, M10 Kit-C