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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

Available in black (RAL 9011) or white (RAL 9010)


  • 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
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