QSC AD-C4T 4.5-Inch Ceiling Speaker

The AD-C4T from QSC is a 2-way ceiling speaker that is 4.5" in diameter. AD-C4T ceiling speakers are sold in pairs.

QSC AD-C4T Features

• Priced individually, sold in pairs
• Consistent tonal characteristics across the entire AcousticDesign™ family in both surface or ceiling applications
• Directivity Matched Transition® (DMT) 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™ Ecosystem and CXD processing 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)

• AD-C4T 4.5" 2-Way Ceiling Speaker 2
• C-ring 2
• Tile rails 2
• Rail screws
• Euroblock connector 2
• Cut-out template 2
• Grille 2

• Effective frequency range170 Hz – 20 kHz
• Rated noise power / voltage230 watts / 22 volts (rms)
• Sensitivity [dB]387.5
• Sensitivity at 4m, 100V maximum tapTBD
• Rated coverage (-6 dB)4150° conical DMT™
• Directivity factor (Q)44.5
• Directivity index (DI) [dB]46.5
• Maximum continuous SPL [dB]5102
• Maximum peak SPL [dB]5108
• Nominal impedance [ohms]16
• Recommended amplifier60 watts
• Transformer taps / impedance
  • 16Ω (in bypass setting)
  • 3.75W (70V); 7.5W (100V) Tap: 1333Ω
  • 7.5W (70V); 15W (100V) Tap: 667Ω
  • 15W (70V); 30W (100V) Tap: 333Ω
  • 30W (70V); N/A (100V) Tap: 167Ω
• LF transducer114 mm [4.5-inch] weather resistant paper cone woofer
• HF transducer19 mm [0.75-inch] aluminum dome tweeter
• Input connector typeEuroblock connector with parallel output
• Enclosure materialABS baffle on powder coated steel back can
• Grille materialPowder coated steel
• Ingress protectionIP-34
• Operating environmentDesigned for indoor use
• Operating temperature range-20 to 50° C [-4 to 122° F]
• Cutout dimensionØ 195 mm [Ø 7.68-inch]
• Net weight2.9 kg [6.4 lb]
• Product dimensions (Diameter x Height)Ø 230 x 176 mm [Ø 9.06 x 6.93-inch]
• Shipping weight9.3 kg [20.5 lb] (pair packed)
• Shipping dimensions (H x W x D)279 x 711 x 318 mm [11 x 28 x 12.5-inch] (pair packed)
• 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.
• Notes
  • 1: Half Space, -10dB from on-axis sensitivity
  • 2: IEC60268-5 50hz high passed noise at 2 Hrs, 16Ω
  • 3: Free-field, on-axis, 2.83V, 1m
  • 4-6: dB from on-axis, 500 Hz–5 kHz average
  • 5: Calculated from rated noise voltage and sensitivity