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Mã sản phẩm: LOA ÂM TRẦN CAO CẤP JBL Control 12C-VA
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Ghi chú: LOA ÂM TRẦN CAO CẤP JBL Control 12C-VA


Control 12C-VA
3" Compact Ceiling Loudspeaker
for EN54-24 Application
  Frequency Range (-10 dB) 68 Hz – 17 kHz
  Frequency Response (±3 dB) 95 Hz – 15 kHz
  Power Capacity (at low-Z) 40 Watts Continuous Program Power
20 Watts Continuous Pink Noise
  Rated Noise Power 15W (15W tap)
  Rated Noise Voltage 70V/100V (with 70V/100V tap settings)
  Nominal Sensitivity 84 dB: 8 ohm tap
  EN54 Sensitivity (@ 4m) 72 dB (per EN54-24 spectrum and measurement conditions at 4 meters.)
  Coverage Pattern 130° conical coverage (1 kHz - 16 kHz)
  Coverage Angels
(by Frequency)
Conical (Vertical & Horizontal)
500 Hz: 180°
1000 Hz: 175°
2000 Hz: 170°
4000 Hz: 160°
  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) 9.8
  Directivity Index (DI) 7.4 dB
  Rated Maximum SPL 97 dB @ 1 m (3.3 ft) average, 103 dB peak
  EN54 Max SPL (@ 4m) 84 dB (per EN54-24 spectrum and measurement 15W tap, at 4 meters)
  Nominal Impedance 8 ohms (in direct/bypass 8Ω setting)
1.9W@70V; 3.8W@100V Tap: 2667Ω
3.8W@70V; 7.5W@100V Tap: 1333Ω
7.5W@70V; 15W@100V Tap: 667Ω
15W@70V; N/C@100V Tap: 333Ω
  Transformer Taps 15W, 7.5W, 3.8W @ 70V or 100V (plus 1.9W @ 70V only)
  Fuse Thermal Fuse, open temperature 152 degrees C, Rating >= 10A @ 250VAC
  Driver 76 mm (3 inch) with polypropylene cone, butyl rubber surround, anodized aluminum voice coil former, high temperature voice coil
  Connections Input +, Input -, Earth (connected to backcan). Ceramic block 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 (H x W x D) 196 mm diameter x 174 mm from back of baffle to back of gland nut (7.7 in diameter x 6.9 in in depth)
  Ceiling Cutout Size Circular cutout with 170 mm (6.7 in) diameter (cardboard cutout template included)
  Ceiling Thickness Range Up to 35 mm (1.4 in) with stock dog-ears. MTC-TCD thickceiling dog-ears available for up to 55 mm (2.2 in) ceiling thicknesses
  Safety Seismic Attachment One point, top surface
  Net Weight 1.6 kg (3.5 lbs, one speaker)
  Shipping Weight 6.7 kg (14.7 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-12WG high humidity grille
MTC-24NC new construction bracket 
MTC-24MR mud-ring construction bracket 
MTC-TCD thick-ceiling dog-ears for ceiling thicknesses up to 55 mm (2.2 in, ordering one set = 24 dogears for 8 speakers) 
MTC-48TR tile rail for 1200 mm (4 ft) tile spans