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JBL Control 14C-VA Co-axial Ceiling Loudspeaker

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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:

 165 mm (6.5 in) high output driver with polypropylene cone and butyl rubber surround

 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

 50 Watts at 8Ω nominal setting

 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)


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


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


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)


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


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


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


MTC-48TR tile rail for 1200 mm (4 ft) tile spans