รายละเอียดย่อ :
ลำโพงติดเพดาน 4" Full-range no backcan (non UL), ceiling speaker, 70/100v transformer, 140° conical coverage. Priced individually but must be purchased in quantities of four (4).
 
รายละเอียดทั้งหมด :
 
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QSC AC-C4T-nb ลำโพงติดเพดาน 4" Full-range no backcan (non UL), ceiling speaker, 70/100v transformer, 140°  conical coverage. Priced individually but must be purchased in quantities of four (4). 
High quality 4” full-range transducer provides exceptional clarity through the critical voice range.Ported baffle for increased low frequency extension down to 70 Hz.Low-saturation 70V/100V transformers with 8-ohm bypass.4-pole Euroblock connector for easy system wiring.White (RAL 9010) with UV inhibitors to match complementing QSC product families. Datasheet https://drive.google.com/file/d/1RMfvyu65oXepWHPVogcDj1OR-ZcSib6d/view?usp=sharing   
| Specifications | AC-C4T-nb |  
| Transducer | 100 mm [4 in.] weather resistant paper cone |  
| Rated noise power [rms] (1) | 6 W |  
| Nominal Impedance | 8Ω |  
| Transformer taps: |  |  
| 70 V | 6, 3, 1.5, 0.75 W |  
| 100V | 6, 3, 1.5 W |  
| Effective frequency range (2) | 62 Hz - 18 kHz |  
| Rated Coverage(3) | 140° conical |  
| Directivity Factor | 4 |  
| Directivity Index [dB] | 6 |  
| Sensitivity (4) | 93 dB |  
| Maximum continuous SPL (5) | 101 dB |  
| Maximum peak SPL (5) | 107 dB |  
| Baffle material | ABS |  
| Grille material | Powder coated steel |  
| Cutout Dimensions | Ø 178 mm [Ø 7 in] |  
| Net weight | 1.2 kg [2.6 lb] |  
| Product dimensions (Diameter x Height) | Ø 206 x 95 mm [Ø 8.11 x 3.75 in.] |  
| Shipping weight | 5.9 kg [13.1 lb] (packs of 4) |  
| Shipping dimensions (H x W x D) | 254 × 324 × 476 mm [10 × 12.75 × 18.75 in] (packs of 4) |  |