LF18G401

The LF18G401 is a 18-inch woofer with linear frequency response cheracteristics and very high power handling.

The LF18G401 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
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Цена:
Описание

pdfDatasheet (паспорт драйвера)

FEATURES
  • 4-inch, fiberglass inside/outside copper voice coil
  • 1800W continuous program power handling
  • 98 dB Sensitivity
  • 30 Hz – 1 kHz Frequency range
  • 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:1800 W AES
  • Power handling capacity:900 W AES
  • Sensitivity:98 dB
  • Frequency Range:30 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:5.9 Ω
  • Voice Coil Diameter:100 / 4 mm/inch
  • Voice Coil Material:Copper
  • Voice Coil Winding Depth:23 / 0.9 mm/inch
  • Number of layers:2
  • Kind of layer:inside / outside
  • Top Plate Thickness:12 / 0.5 mm/inch
  • Cone Material:No pressed pulp
  • Cone Design:Straight
  • Surround Material:Polycotton
  • Surround Design:Triple roll
THIELE/SMALL PARAMETERS
  • DC resistance:4.8Ω
  • Mechanical factor:7.6
  • Electrical factor:0.30
  • Total factor:0.29
  • BL Factor:24.6 T · m
  • Effective Moving Mass:182 g
  • Equivalent Cas air load:268 liters
  • Effettive piston area:0.122 m²
  • Max. linear excursion (mathematical):8.5 mm
  • Voice - coil inductance @ 1kHz:2.4 mH
  • Half-space efficiency:3.09%
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:205 / 8.1 mm/inch
  • Volume occupied by the driver:7.0 / 0.25 liters/ft³
  • Net Weight:13 / 28.9 kg/lbs

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