Loa âm trần, dòng AcousticDesign, 4.5″, 30W, QSC AD-C4T

\n\n# Features\n\n* Consistent tonal characteristics across the entire AcousticDesign™ family in both surface or ceiling applications\n* Directivity Matched Transition® (DMT) waveguide ensures smooth, uniform frequency response over the coverage area\n* Snap-fit magnetic grille\n* 3x double stepped, long travel dog-ear blind mount system\n* Advanced Intrinsic Correction™ voicings available via Q-SYS™\n* Low-saturation and low-loss 70/100V transformers with 16Ω bypass\n* Blemish-free removable logo\n* Removable conduit cover plate, also available as accessory for pre-install wiring\n* Available in black (RAL 9011) or white (RAL 9010)\n* Complete EASE, CF2, CAD, & BIM information available online\n\n| | |\n| --- | --- |\n| SPECIFICATIONS | AD-C4T |\n| Effective frequency range1 | 70 Hz – 20 kHz |\n| Rated noise power / voltage2 | 30 watts / 22 volts (rms) |\n| Sensitivity [dB]3 Sensitivity at 4m, 100V maximum tap | 87.5 TBD |\n| Rated coverage (-6 dB)4 | 150° conical DMT™ |\n| Directivity factor (Q)4 | 4.5 |\n| Directivity index (DI) [dB]4 | 6.5 |\n| Maximum continuous SPL [dB]5 | 102 |\n| Maximum peak SPL [dB]5 | 108 |\n| Nominal impedance [ohms] | 16 |\n| Recommended amplifier | 60 watts |\n| 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 |\n| LF transducer | 114 mm [4.5-inch] weather resistant paper cone woofer |\n| HF transducer | 19 mm [0.75-inch] aluminum dome tweeter |\n| Input connector type | Euroblock connector with parallel output |\n| Enclosure material | ABS baffle on powder coated steel back can |\n| Grille material | Powder coated steel |\n| Ingress protection | IP-34 |\n| Operating environment | Designed for indoor use |\n| Operating temperature range | -20 to 50° C [-4 to 122° F] |\n| Cutout dimension | Ø 195 mm [Ø 7.68-inch] |\n| Net weight | 2.9 kg [6.4 lb] |\n| Product dimensions (Diameter x Height) | Ø 230 x 176 mm [Ø 9.06 x 6.93-inch] |\n| Shipping weight | 9.3 kg [20.5 lb] (pair packed) |\n| Shipping dimensions (H x W x D) | 279 x 711 x 318 mm [11 x 28 x 12.5-inch] (pair packed) |\n| Included accessories | C-ring and tile rails, rail screws, euroblock connector, cut-out template, grille |\n| Optional accessories | AD-MR4 (pre-install mud ring) |\n| Safety Agency | 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. |\n\n1Half Space, -10dB from on-axis sensitivity \n2IEC60268-5 50hz high passed noise at 2 Hrs, 16Ω \n3Free-field, on-axis, 2.83V, 1m \n4*-6 dB from on-axis, 500 Hz–5 kHz average \n5Calculated from rated noise voltage and sensitivity*