QSC 6″ Ceiling Speaker Model AD-C6T


  • Consistent tonal characteristics across the entire AcousticDesign™ family in both surface or ceiling applications
  • DMT (Directivity Matched Transition™) waveguide ensures smooth, uniform frequency response over the coverage area
  • Snap-fit magnetic grille
  • 3x double stepped, long travel dog-ear blind mount system
  • Advanced Intrinsic Correction™ voicings available via Q-SYS™ networked audio processing platforms, including CXD amplifiers
  • Low-saturation and low-loss 70/100V transformers with 16Ω bypass
  • Blemish-free removable logo
  • Removable conduit cover plate, also available as accessory for pre-install wiring
  • UL1480 and UL2043 certified EN54-24 Type A
  • Available in black (RAL 9011) or white (RAL 9010)
  • Complete EASE, CF2, CAD, & BIM information available online
Effective frequency range1 65 Hz – 20 kHz
Rated noise power / voltage2 60 watts / 31 volts (rms)
Sensitivity [dB]3

Sensitivity at 4m, 100V maximum tap


Rated coverage (-6 dB)4 135° conical DMT
Directivity factor (Q) 6.5
Directivity index (DI) [dB] 8
Maximum continuous SPL [dB]5 106
Maximum peak SPL [dB]5 112
Nominal impedance [ohms] 16
Recommended amplifier 120 watts
Transformer taps / impedance 16Ω (in bypass setting)
7.5W (70V); 15W (100V) Tap: 667Ω
15W (70V); 30W (100V) Tap: 333Ω
30W (70V); 60W (100V) Tap: 167Ω
60W (70V); N/A (100V) Tap: 83Ω
LF transducer 165 mm [6.5-inch] weather resistant paper cone woofer
HF transducer 25 mm [1-inch] aluminum dome tweeter
Input connector type Euroblock connector with parallel output
Enclosure material ABS baffle on powder coated steel back can
Grille material Powder coated steel
Ingress protection IP-34
Operating environment Designed for indoor use
Operating temperature range -20 to 50° C [-4 to 122° F]
Cutout dimension Ø 245 mm [Ø 9.65-inch]
Net weight 4.3 kg [9.5 lb]
Product dimensions (Diameter x Height) Ø 280 x 237 mm [Ø 11.02 x 9.32-inch]
Shipping weight 12.6 kg [27.8 lb] (pair packed)
Shipping dimensions (H x W x D) 330 x 737 x 381 mm [13 x 29 x 15-inch] (pair packed)
Included accessories C-ring and tile rails, rail screws, euroblock connector, cut-out template, tether grille
Optional accessories AD-MR6 (pre-install mud ring)
AD-CC6 (pre-install conduit cover)
Safety Agency EN54-24: 2008 type A (No. pending)
UL1480, UL2043, NFPA90, NFPA70 suitable for use in air handling spaces. Transformer UL registered per UL1876, ROHS, C-Tick X000, CE compliant. Baffle meets UL94-V0 and UL94-5VB flammability rating; in accordance with IEC60849 / EN60849 systems.


1 Half Space, -10dB from on-axis sensitivity 
2IEC60268-5 50hz high passed noise at 2 Hrs, 16Ω
Free-field, on-axis, 2.83V, 1m
4-6 dB from on-axis, 500 Hz–5 kHz average
5Calculated from rated noise voltage and sensitivity