The QSC AcousticDesign AD-S112sw is a low impedance, surface mounted, 12” direct radiating subwoofer.  An ideal companion to AcousticDesign full range models, the AD-S112sw allows impressive low frequency expression within a complimenting form factor, suitable of demanding foreground and background sound reinforcement applications. The AD-S112sw features a high quality 12” weather treated paper cone woofer on a 2.5” voice coil.  To maximize enclosure resonance  and woofer performance, QSC’s innovative APF™ (Angulated Pressure Flow) port achieves unparalleled efficiency, allowing frequency extension down to 30Hz. 

AD-S112-SW Features

  • 12-inch weather treated woofer
  • TFR™ (Turbulent Flow Reduction) port provides optimal resonant tuning and high velocity air flow
  • Maximum peak SPL 121 dB
  • Suggested filter points: 32 Hz high-pass, 24 dB/octave Butterworth; 100 Hz low-pass, 24 dB/octave Butterworth
  • Included YMS12 yoke mount maximizes boundary plane coupling while reducing vibration transmission
  • Optional M10 Kit-C for additional installation versatility
  • 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)
System Details AD-S112sw
Effective frequency range1 30 - 135 Hz
Rated noise power / voltage2 300 watts / 50 volts (rms)
Broadband Sensitivity3 90 dB SPL
Maximum continuous SPL4 115 dB
Maximum peak SPL4 121 dB
Rated impedance 8 ohms
Recommended amplifier power (loudspeaker "program" power) 600 watts
Transformer taps n/a
HF transducer -
LF transducer 12-inch weather resistant paper cone woofer, 2.5-inch / 64mm voice coil
Input connector type Euroblock connector with parallel output terminals
Enclosure material Painted ABS polymer
Grille material Powder coated aluminum
Yoke material Powder coated galvanized steel (included)
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
Product Dimensions (HWD) inches 23.4 x 13.9 x 12.7
Product Dimensions (HWD) mm 594 x 354 x 323 
Net weight 29 lb / 13.2 kg
Shipping weight 43.1 lb / 19.6 kg
Shipping dimensions 27.5-inch x 21.75-inch x 18.5-inch (698 x 552 x 470 mm)
Included accessories YMS12 yoke mounting system, Euroblock connector, input panel cover
List price: $917.00
Price: $917.00
SKU: AD-S112-SW
Catalog: 
Subwoofers
Brand: 
QSC Audio
Dimensions: 22 in × 19 in × 27 in
Weight: 43 lb