The QSC Acoustic Design AD-S12 is a surface mounted low impedance, 12” two-way loudspeaker system, ideally suited for a wide variety of foreground and background sound reinforcement applications. The AD-S12 features a high quality 12" weather treated paper cone woofer on a 2.5" 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. Consistent and even 75° axisymmetric (conical) coverage is achieved through DMT (Directivity Matched Transition), a QSC innovation which matches the directivity patterns of the woofer and the high-frequency waveguide at the crossover point. The result is a coherent transition between transducers and improved off-axis response.
System Details |
AD-S12 |
Effective frequency range1 |
52 Hz - 20 kHz |
Rated noise power / voltage2 |
300 watts / 50 volts (rms) |
Broadband Sensitivity3 |
95 dB SPL |
Coverage angle (-6 dB) |
75° conical DMT |
Directivity factor (Q) |
12 |
Directivity Index |
11 dB |
Maximum continuous SPL4 |
120 dB |
Maximum peak SPL4 |
126 dB |
Rated impedance |
8 ohms |
Recommended amplifier power
(loudspeaker "program" power) |
600 watts |
Transformer taps |
n/a |
HF transducer |
1-inch exit / 1.4-inch voice coil compression driver |
LF transducer |
12-inch weather resistant paper cone woofer, 2.5-inch / 64 mm voice coil |
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Input connector type |
Euroblock connector with parallel output terminals |
Enclosure material |
Painted ABS polymer |
Grille 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° & 50° C
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Product Dimensions
(HWD) inches |
23.4 x 13.9 x 12.7 |
Product Dimensions
(HWD) mm |
594 x 354 x 323 |
Net weight |
35.2 lb / 16 kg |
Shipping weight |
46.3 lb / 21 kg |
Shipping dimensions |
34.5-inch x 17.9-inch x 17.2-inch (765 x 455 x 437 mm) |
Included accessories |
X-Mount mounting system, Euroblock connector, Input panel cover |
Optional accessories |
YMS12 yoke mount, M10 Kit-C |