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.
Features
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4-inch, fiberglass inside/outside copper voice coil
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1800W continuous program power handling
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98 dB Sensitivity
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30 Hz – 1 kHz Frequency range
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Dual spider design with silicon based dampening control
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Triple-roll surround and corrugated straight cone geometry
Applications
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The LF18G401 is ideal for use in applications where incredible power handling, long excursion and perfect control is required.
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Ideal for high quality professional bass reflex and bass-horn system.
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The robust machanical design and optimised weight of the device make it desiderable for use in fixed installation or portable professional loudspeaker system.
Specifications
GENERAL SPECIFICATIONS
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Nominal Diameter:460 / 18 mm/inch
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Rated Impedance:8 Ω
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Program Power:1800 W AES
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Power handling capacity:900 W AES
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Sensitivity:98 dB
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Frequency Range:30 Hz ÷ 1000 Hz
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Effective Piston Diameter:395 / 15.6 mm/inch
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Max Excursion Before Damage (peak to peak):50 / 2.0 mm/inch
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Minimum Impedance:5.9 Ω
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Voice Coil Diameter:100 / 4 mm/inch
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Voice Coil Material:Copper
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Voice Coil Winding Depth:23 / 0.9 mm/inch
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Number of layers:2
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Kind of layer:inside / outside
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Top Plate Thickness:12 / 0.5 mm/inch
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Cone Material:No pressed pulp
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Cone Design:Straight
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Surround Material:Polycotton
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Surround Design:Triple roll
THIELE/SMALL PARAMETERS
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DC resistance:4.8Ω
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Mechanical factor:7.6
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Electrical factor:0.30
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Total factor:0.29
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BL Factor:24.6 T · m
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Effective Moving Mass:182 g
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Equivalent Cas air load:268 liters
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Effettive piston area:0.122 m²
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Max. linear excursion (mathematical):8.5 mm
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Voice - coil inductance @ 1kHz:2.4 mH
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Half-space efficiency:3.09%
MOUNTING INFORMATION
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Overall Diameter:465 / 18.3 mm/inch
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Bolt Circle Diameter:442-447 / 17.4-17.6 mm/inch
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Bolt Hole Diameter:6.5 / 0.3 mm/inch
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Front Mount Baffle Cut-out:424 / 16.7 mm/inch
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Rear Mount Baffle Cut-out:424 / 16.7 mm/inch
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Depth:205 / 8.1 mm/inch
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Volume occupied by the driver:7.0 / 0.25 liters/ft³
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Net Weight:13 / 28.9 kg/lbs
SHIPPING INFORMATION
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Shipping weight:13.7 / 30.4 kg/lbs