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LF18G400

The LF18G400 is a 18-inch woofer with linear frequency response cheracteristics and very high power handling.

The LF18G400 uses a fibre loaded cone assembly along with a high excursion triple roll, constant geometry surround.
This combination provides remarkable strength and peak to peak maximum excursion of 50mm.
Special features of this 18" are the unique T-pole, curved against voice coil over-driving and 14mm top plate for best control and power handling.
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Цена:
Описание

pdfDatasheet (паспорт драйвера)

FEATURES
  • 4-inch, fiberglass inside/outside copper voice coil
  • 2000W continuous program power handling
  • 97.5 dB Sensitivity
  • 25 Hz – 1 kHz Frequency range
  • T-pole, curved on top. 14mm top plate for minimum power compression
  • Dual spider design with silicon based dampening control
  • Triple-roll surround and corrugated straight cone geometry
GENERAL SPECIFICATIONS
  • Nominal Diameter:460 / 18 mm/inch
  • Rated Impedance:8 Ω
  • Program Power:2000 W AES
  • Power handling capacity:1000 W AES
  • Sensitivity:97.5 dB
  • Frequency Range:25 Hz ÷ 1000 Hz
  • Effective Piston Diameter:395 / 15.6 mm/inch
  • Max Excursion Before Damage (peak to peak):50 / 2.0 mm/inch
  • Minimum Impedance:6.0 Ω
  • Voice Coil Diameter:100 / 4 mm/inch
  • Voice Coil Material:Copper
  • Voice Coil Winding Depth:25 / 1.0 mm/inch
  • Number of layers:2
  • Kind of layer:Inside / outside
  • Top Plate Thickness:14 / 0.55 mm/inch
  • Cone Material:No pressed pulp
  • Cone Design:Straight
  • Surround Material:Polycotton
  • Surround Design:Triple roll
THIELE/SMALL PARAMETERS
  • DC resistance:5.1Ω
  • Mechanical factor:4.6
  • Electrical factor:0.29
  • Total factor:0.27
  • BL Factor:24.2 T · m
  • Effective Moving Mass:190 g
  • Equivalent Cas air load:360 liters
  • Effettive piston area:0.122 m²
  • Max. linear excursion (mathematical):9.0 mm
  • Voice - coil inductance @ 1kHz:2.5 mH
  • Half-space efficiency:2.63%
MOUNTING INFORMATION
  • Overall Diameter:465 / 18.3 mm/inch
  • Bolt Circle Diameter:442-447 / 17.4-17.6 mm/inch
  • Bolt Hole Diameter:6.5 / 0.3 mm/inch
  • Front Mount Baffle Cut-out:424 / 16.7 mm/inch
  • Rear Mount Baffle Cut-out:424 / 16.7 mm/inch
  • Depth:210 / 8.3 mm/inch
  • Volume occupied by the driver:7.0 / 0.25 liters/ft³
  • Net Weight:13.3 / 29.3 kg/lbs

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