• High quality 4.5-inch full-range transducer provides exceptional clarity through the critical voice range.
  • Ported baffle for increased low frequency extension down to 70 Hz.
  • Low-saturation 70V/100V transformers with 8-ohm bypass.
  • 4-pole Euroblock connector for easy system wiring.
  • Advanced voicing filter sets using QSC Intrinsic Correction™ are available through either Q-SYS processing or CXD amplifier platforms.
  • White (RAL 9010) with UV inhibitors to match complementing QSC product families.
  • Complete EASE, CAD, and BIM information available online


  • Specifications AC-C4T
    Effective frequency range 70 Hz to 16 kHz
    Rated noise power / voltage 16 watts / 11.3 volts (rms)
    Broad-band sensitivity 89 dB SPL
    Coverage angle (-6 dB) 140° (500 Hz to 5 kHz)
    Maximum continuous SPL 101 dB
    Maximum peak SPL 107 dB
    Rated impedance 8 ohms
    Transformer taps:  
              70 V 16, 8, 4, 2, 1 watts and 8-ohm bypass
              100V 16, 8, 4, 2, watts and 8-ohm bypass
    Transducer 4.5-inch Polypropylene cone with butyl rubber surround
    Input connector type Euroblock connector with parallel output terminals 
    Baffle material Painted ABS polymer 
    Grille material Powder coated steel 
    Back can material Galvanized steel 
    Testing Listed UL1480, UL2043 safe for use in air handling space 
    Net weight 4.9 lb / 2.22 kg 
    Product dimensions 8.4-inch × 7.9-inch (214 × 201 mm) 
    Cut-out Dimensions 7.31-inch (185.67mm) 
    Ceiling Capture Thickness 0.25-inch to 1.5-inch (6.35 to 38.1mm) 
    Shipping weight 15.1 lb / 6.86 kg 
    Shipping dimensions 10.75-inch × 24-inch × 10.5-inch (273.1 × 609.6 × 266.7 mm) 
    Included accessories Rails and C-ring for ceiling tile installation 
    Optional accessories AC-MR4 mud ring for sheet rock installation
Free shipping on ADJ orders over $1600.