รายละเอียดย่อ :
ลำโพงติดเพดาน 4.5" Two-way ceiling speaker, 70/100v transformer with 16Ω bypass, 150° conical DMT coverage, includes C-ring and rails for blind mount installation. Priced individually but must be purchased in pairs.
 
รายละเอียดทั้งหมด :
 
QSC AD-C4T ลำโพงติดเพดาน 4.5" Two-way ceiling speaker, 70/100v transformer with 16Ω bypass,  
150° conical DMT coverage, includes C-ring and rails for blind mount installation. Priced individually 
 but must be purchased in pairs. 
Feature. 
- 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 (pending)
 
- Available in black (RAL 9011) or white (RAL 9010)
 
- Complete EASE, CF2, CAD, & BIM information available online
 
 
Specsheet 
https://drive.google.com/file/d/100KeGcqO9FZW40P7zsdcswyfNHEgkvFj/view?usp=sharing 
  
| 
 SPECIFICATIONS 
 | 
 AD-C4T 
 | 
 
| 
 Effective frequency range1 
 | 
 60 Hz – 20 kHz 
 | 
 
| 
 Rated noise power / voltage2 
 | 
 30 watts / 22 volts (rms) 
 | 
 
| 
 Sensitivity [dB]3 
Sensitivity at 4m,  100V maximum tap 
 | 
 87.5
  TBD 
 | 
 
| 
 Rated coverage (-6 dB)4
  Coverage angle by frequency 
  Conical coverage 
 | 
 150° conical DMT 
500Hz 1000Hz 2000Hz 4000Hz 
160° 155° 150° 140° 
 | 
 
| 
 One-third octave frequency band contribution at full power using 100V maximum tap (Hz / dB) 
 | 
 500 / 57.4; 630 / 57.4; 800 / 57.4  1000 / 57.4; 1250 / 57.4; 1600 / 57.4  2000 / 57.4; 2500 / 57.4; 3150 / 57.4  4000 / 57.4 
 | 
 
| 
 Directivity factor (Q)4 
 | 
 4.5 
 | 
 
| 
 Directivity index (DI) [dB]4 
 | 
 6.5 
 | 
 
| 
 Maximum continuous SPL [dB]5 
 | 
 102 
 | 
 
| 
 Maximum peak SPL [dB]5 
 | 
 108 
 | 
 
| 
 Nominal impedance [ohms] 
 | 
 16 
 | 
 
| 
 Recommended amplifier 
 | 
 60 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 transducer 
 | 
 114 mm [4.5 in] weather resistant paper cone woofer 
 | 
 
| 
 HF transducer 
 | 
 25 mm [1 in] 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-54 
 | 
 
| 
 Operating environment 
 | 
 Designed for indoor use 
 | 
 
| 
 Operating temperature range 
 | 
 -20 to 50° C [-4 to 122° F] 
 | 
 
| 
 Cutout dimension 
 | 
 Ø 195 mm [Ø 7.68 in] 
 | 
 
| 
 Net weight 
 | 
 2.9 kg [6.4 lb] 
 | 
 
| 
 Product dimensions (Diameter x Height) 
 | 
 Ø 230 x 176 mm [Ø 9.06 x 6.93 in.] 
 | 
 
| 
 Shipping weight 
 | 
 9.3 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 in] (pair packed) 
 | 
 
| 
 Included accessories 
 | 
 C-ring and tile rails, rail screws, euroblock connector, cut-out template, grille 
 | 
 
| 
 Optional accessories 
 | 
 AD-MR4 (pre-install mud ring)  AD-CC4 (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. 
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