6.5" Two-way surface speaker, 70/100V transformer with 8? bypass, 105° conical DMT™ coverage, includes X-Mount™ and weather input cup. Available in white. Priced individually but must be purchased in pairs.


AD-S6T Surface Mount Loudspeaker



  • 6.5 inch weather treated woofer; 1 inch silk dome tweeter
  • 105° conical DMT coverage
  • 60 watt low-saturation and low-loss 70/100V transformers with 8? bypass
  • Maximum peak SPL 116 dB (8 ohm bypass)
  • DMT™ (Directivity Matched Transition) 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
  • 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-S6T
Effective frequency range1 60 Hz - 20 kHz
Rated noise power / voltage2 150 watts / 35 volts (rms)
Broadband sensitivity3 89 dB SPL
Coverage angle (-6 dB) 105° conical DMT
Directivity factor (Q) 5
Directivity Index 7 dB
Maximum continuous SPL4 110 dB
Maximum peak SPL4 116 dB
Rated impedance 8 ohms 
Recommended amplifier power
(loudspeaker "program" power)
300 watts
Transformer taps 70 V: 60, 30, 15, 7.5 W and 8? bypass

100V: 60, 30, 15 W and 8? bypass
HF transducer 1 inch silk dome tweeter / 1 inch voice coil, horn loaded
LF transducer 6.5 inch weather resistant paper cone woofer

1.5 inch / 38 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 13.6 lb / 6.2 kg
Product dimensions
(HWD) inches
14.4 × 8.5 × 8.5
Product dimensions
(HWD) mm
365 × 215 × 215
Shipping weight 33.4 lb / 15.2 kg (pair packed)
Shipping dimensions
(HWD) inches
20 × 12 × 23 (pair packed)
Shipping dimensions
(HWD) mm
510 × 305 × 585 (pair packed)
Included accessories X-Mount mounting system, Euroblock connector,
input panel cover

1 Free-field, -10 dB from on-axis sensitivity
2IEC60268-1 noise signal for 2 hours
3On-Axis, free-field sensitivity, 2.83V, 1 m
4Calculated from rated noise voltage and sensitivity

All specifications are subject to change without notice.

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