2.75-inch Full-range, 170° conical

  • Hero front view of the AC-CT in-ceiling speaker with and without the speaker grill
  • Hero front and rear view of the AC-CT in-ceiling speaker without the speaker grill


  • High quality 2.75-inch full-range transducer provides exceptional clarity through the critical voice range.
  • Low-saturation 70V/100V transformers with 8-ohm bypass.
  • 4-pole Euroblock connector for easy system wiring.
  • Intrinsic Correction™ voicings available via Q-SYS Platform.
  • White (RAL 9010).
  • Complete EASE, CAD, and BIM information available online.

How to choose: AC-C2T vs AC-C4T

Ideal for: background music, VoIP, hospitality w/ low ceiling Ideal for: foreground audio, POTS, airports, public address
Raised LF / HF Response = subjectively more musical HF roll-off above 8kHz = ideal for voice (far-end, paging, etc)
Smaller cone / magnet (Bl) = lower sensitivity (84 dB) Larger cone / magnet (Bl) = higher sensitivity (89 dB)
Wider coverage (170°) = ideal for lower ceilings (<10ft) Narrower coverage (140°) = ideal for higher ceilings (<15ft)
Specifications AC-C2T
Effective frequency range 70 Hz to 20 kHz
Rated noise power / voltage 16 watts / 11.3 volts (rms)
Broad-band sensitivity 84 dB
Coverage angle (-6 dB) 170° (500 Hz to 5 kHz)
Maximum continuous SPL 96 dB
Maximum peak SPL 102 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 2.75-inch treated paper cone with rubber surround
Input connector type Euroblock connector with parallel output terminals 
Baffle material Painted ABS polymer 
Grille material Powder coated steel 
Back can material Powder coated steel 
Testing Listed UL1480, UL2043 safe for use in air handling space 
Net weight 4.2 lb / 1.9 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

All specifications are subject to change without notice.