JBL Control 14C-VA Co-axial Ceiling Loudspeaker
Giá ban đầu
JBL Control 14C-VA Co-axial Ceiling Loudspeaker.
Control 18C/T là loa toàn dãi đường kính 100 mm (4.0 inches) sử dụng driver công nghệ cao và một tweeter đồng trục đường kính 19 mm soft-dome , vách ngăn được sơn bằng vật liệu UL94-V0 and UL94-5HB chống tia cực tím "tia UV", phụ kiện kèm backcan giúp dễ dàng lắp đặt nhanh chóng.
Loa được thiết kế để lắp đặt phù hợp rộng rãi cho nhiều ứng dụng yêu cầu âm thanh với mức âm lượng phát từ "vừa" đến "lớn" như quán cafes, văn phòng làm việc, cửa hàng bán lẻ, music/paging systems, sân bay, sảnh chờ, lounges, courtrooms, trung tâm hội nghị, khách sạn, các cơ sở giáo dục....
Đặc điểm nổi bật:
- Components:
o 165 mm (6.5 in) high output driver with polypropylene cone and butyl rubber surround
o 19 mm (0.75 in) soft-dome liquid-cooled tweeter
- EN54-24 Compliant
- Blind-mount backcan for quick and easy install
- Combined 70V/100V and low impedance direct operation
o 50 Watts at 8Ω nominal setting
o 30W multi-tap at 70V/100V
- 62 Hz – 20 kHz bandwidth with wide 110° coverage
- High 91 dB sensitivity for high maximum SPL
Thông số kỹ thuật:
Frequency Range (-10 dB) | 62 Hz – 20 kHz |
Frequency Response (±3 dB) | 96 Hz – 15 kHz |
Power Capacity (at low-Z) | Power Capacity (at low-Z)2: 100 Watts Continuous Program Power 50 Watts Continuous Pink Noise |
Rated Noise Power | 30W (30W tap) |
Rated Noise Voltage | 70V/100V (with 70V/100V tap settings) |
Nominal Sensitivity | 91 dB: 8 ohm tap |
EN54 Sensitivity (@ 4m) | 77 dB (per EN54-24 spectrum and measurement conditions at 4 meters). |
Coverage Pattern | 110° conical coverage (1 kHz - 16 kHz) |
Coverage Angles (by Frequency) Conical (Vertical & Horizontal) | 500 Hz: 180° 1000 Hz: 160° 2000 Hz: 155° 4000 Hz: 92° |
Reference Axis | Specification and measurement reference is directly on-axis vertically and horizontally, directly below the speaker as speaker it is installed in the horizontal ceiling plane |
Directivity Factor (Q) | 7.8 |
Directivity Index (DI) | 8.2 dB |
Rated Maximum SPL | 108 dB @ 1 m (3.3 ft) average, 116 dB peak |
EN54 Max SPL (@ 4m) | 91 dB (per EN54-24 spectrum and measurement conditions, 30W tap, at 4 meters) |
Nominal Impedance | 8 ohms (in direct/bypass 8 ohm setting); EN54 nominal impedance 7 ohms (based on min Z of 5.7 ohms at 11.2 kHz) 3.8W@70V; 7.5W@100V Tap: 1333Ω 7.5W@70V; 15W@100V Tap: 667Ω 15W@70V; 30W@100V Tap: 333Ω 30W@70V; N/C@100V Tap: 166Ω |
Transformer Taps | 30W, 15W, 7.5W @ 70V or 100V (plus 3.8W @ 70V only) |
Crossover Network | 12 dB/oct (2nd order) low-pass to LF driver, 12 dB/oct (2nd order) high-pass to HF driver |
Fuse | Thermal Fuse, open temperature 152 degrees C, Rating >= 10A @ 250VAC |
LF Driver | 165 mm (6.5 inch) with polypropylene cone, butyl rubber surround, anodized aluminum voice coil former, high temperature voice coil |
HF Driver | 19 mm (3/4 in), highly-damped treated-silk dome, Kapton™ voice coil, liquid cooling, wide dispersion waveguide |
Connections | Input +, Input -, Earth (connected to backcan). Ceramic with brass inserts (3.2 mm/0.126 in opening), accommodates 2.5 sq mm / 12 AWG wire. |
Gland Nut/Strain Relief | Accommodates round jacketed cables 4.0 mm (0.16 in) through 9.0 mm (0.36 in) |
Materials | ABS baffle with UL94-V0 and UL94-5VB flame class fire rating; Zinc-plated steel backcan |
Safety Agency | EN54-24:2008 certified Type A (Certificate No. 0359-CPR-00485); Compliant with BS5839/8; UL1480, UL2043, NFPA90 & NFPA70; Suitable for use in air handling spaces, Signaling Speaker; rated IP-21 per IEC529/60529; Transformer UL registered per UL1876; ROHS, C-tick N108, CE compliant; Baffle meets UL94-V0 and UL94-5VB flammability rating; In accordance with IEC60849/ EN60849 systems |
Dimensions | 253 mm diameter x 262 mm from back of baffle to back of gland nut (10.0 in diameter x 10.3 in in depth) |
Ceiling Cutout Size | Circular cutout with 223 mm (8.8 in) diameter (cardboard cutout template included) |
Ceiling Thickness Range | Up to 38 mm (1.5 in) with stock dog-ears. MTC-TCD thickceiling dog-ears available for up to 60 mm (2.4 in) ceiling thicknesses |
Safety Seismic Attachment | One point, top surface |
Net Weight | 3.4 kg (7.4 lbs, one speaker) |
Shipping Weight | 11.2 kg (24.7 lbs, pair in master carton) |
Included Accessories | C-ring support backing plate, 2 tile support rails (for 2 ft or 600 mm tile spans; optional MTC-48TR extension available for larger 4 ft or 1200 mm tile spans), cutout template, paint shield, grille |
Optional Accessories | MTC-16WG high humidity grille MTC-26NC new construction bracket MTC-26MR mud-ring construction bracket MTC-TCD thick-ceiling dog-ears for ceiling thicknesses up to 60 mm (2.4 in, ordering one set = 24 dogears for 6 speakers) MTC-48TR tile rail for 1200 mm (4 ft) tile spans |