AD-C1200 - Batts Audio, Video and Lighting


QSC Audio, Inc.

The AD-C1200 is designed for music playback, public address and distributed audio in applications that require high output from a ceiling mounted loudspeaker. The AcousticDesign™ Series of installation loudspeakers has been designed for trouble free operation and versatility. Utilizing custom designed transducers and crossover networks, in combination with an acoustically optimized enclosure (AD-C1200BB), the AD-C1200 continues the AD Series philosophy to bring the same versatility and reliability to high-ceiling applications. 
Each AD-C1200 includes the coaxial transducers, a transformer and a crossover network factory mounted on a steel baffle. The baffle is designed to mount to the QSC enclosure (AD-C1200BB) or to any ~2.5 ft 3 enclosure using industry standard transducer mounting dimensions. A square grille (AD-C1200SG) is available to finish the installation. 

The 12" woofer is made with a treated paper cone on a steel frame. In the optimized enclosure the usable low frequency of the system extends to 37 Hz. The 1.75" compression driver fires through the center of the woofer and is acoustically mated to the woofer for a smooth transition at crossover. The system achieves 85 degree axisymmetric coverage. 

High-current, low tolerance network components provide smooth full-range, passive performance. The included 70V/100V custom designed transformer is optimized for low line loss as well as accurate and transparent acoustic performance. 

The AD-C1200 loudspeaker system measures 93 dB sensitivity (1W/1m) and at full continuous power is capable of producing 118dB SPL (1W/1m) output.

AD-C1200BB: High performance enclosure of AD-C1200 loudspeaker system.

AD-C1200SG: Steel grille for use with AD-C1200 in white (paintable).

  • 12" low-frequency woofer
  • 1.75" diaphragm compression driver
  • 300 watt continuous power rating
  • 70V/100V multi-tap transformer included (system can operate in distributed or low-impedance mode)

Package Includes:

1 qty. AD-C1200 loudspeaker baffle assembly
(Backbox enclosure (AD-C1200BB) and grille (AD-C1200SG) sold separately)

Configuration Passive
Low-frequency Transducer 12" (304 mm) ferrite woofer
Hight-frequency Transducer 1.75" (44 mm) neodymium compression driver
Frequency Range 1
  Frequency Response (-6 dB)
  Useable Frequency Range (-10 dB)

42 Hz - 18 kHz
37 Hz - 18 kHz
Maximum Output 2
  Calculated Peak Output
  Calculated Continuous Output

124 dB SPL
118 dB SPL
Nominal Coverage 85° horizontal and vertical
Nominal Impedance 16 ohms
Power Rating
  RMS Power Handling3
  Recommended Max Amp Power

300 W
600 W
Sensitivity 93 dB SPL, 1W/1m
Bass Loading Ported
Transformer Type Custom low distortion laminated core, wide bandwidth design
Transformer Taps 100 V: 16 ohms bypass, 150 W, 75 W, 37.5 W
70 V: 16 ohms bypass, 150 W, 75 W, 37.5 W, 18.2 W
Agency Rating CE, UL 1480 (commercial/professional use)
UL 2043 (air handling spaces)


Enclosure Volume AD-C1200BB: 88 L (3.1 ft 3)
Connectors Back box (AD-C1200BB): ceramic block connector inputs and “through” connectors (rated for 400 W max). Loudspeaker Baffle: Euro-style connectors.
Mounting Hardware Pre-installed, suspended, back box, four mounting tabs.
Loudspeaker Baffle: six mounting screws.
Weight - Net AD-C1200: 25 lb / 11.3 kg
AD-C1200BB: 53 lb / 24 kg
Complete Assembly: 78 lb / 35.3 kg
Dimensions (HWD) Complete Assembly: 23" x 18" x 15.5" (584 mm x 454 mm x 393 mm)