Woofer 18", 900W AES, 1800W Program |  |
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The LF18G401 is a 18-inch woofer with linear frequency response characteristics 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 a peak to peak maximum excursion of 50 mm.
Applications
The LF18G401 is ideal for use in applications whereincredible power handling, long excursion and perfect control is required. Ideal for high quality professional bass reflex and bass-horn systems. The robust mechanical design and optimised weight of the device make it desirable for use in fixed installation or portable professional loudspeaker systems. |
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4-inch Inside/outside copper voice coil |
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1800 Watt 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 |
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| Woofer 18", 900W AES, 1800W Program |
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Nominal Diameter
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460/18
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mm/inch
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Rated Impedance
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8
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Ohm
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Program Power
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1800
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Watts
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Power handling capacity
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900
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Watts
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Sensitivity
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98
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dB
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Frequency Range
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30-1000
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Hz
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Effective Piston Diameter
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395/15.6
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mm/inch
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Maximum Excursion Before Damage (peak to peak)
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50/2.0
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mm/inch
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Minimum Impedance
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5.9
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Ohm
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Voice Coil Diameter
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100/4
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mm/inch
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Voice Coil Material
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Copper
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Voice Coil Winding Depth
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23/0.9
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mm/inch
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Number of layers
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2
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Kind of layer
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Inside.Outside
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Top Plate Thickness
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12/0.5
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mm/inch
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Cone Material
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No pressed pulp
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Cone Design
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Straight
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Surround Material
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Polycotton
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Surround Design
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Triple roll
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| THIELE - SMALL PARAMETERS |
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Resonance frequency
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Fs
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33
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Hz
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DC resistance
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Re
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4.8
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Ohm
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Mechanical factor
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Qms
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7.6
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Electrical factor
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Qes
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0.30
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Total factor
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Qts
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0.29
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BL factor
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BL
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24.6
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T - m
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Effective Moving Mass
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Mms
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182
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gr
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Equivalent Cas air load
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Vas
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268
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liters
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Effective piston area
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Sd
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0.122
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m2
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Max. linear excursion (mathematical)
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Xmax
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8.5
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mm
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Voice - coil inductance @ 1kHz
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Le1k
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2.4
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mH
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Half-space efficiency
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Eff
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3.09
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%
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Overall Diameter
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465/18.3
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mm/inch
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Bolt Circle Diameter
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442-447
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mm
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Bolt Hole Diameter
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6.5/0.3
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mm/inch
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Front Mount Baffle Cut-out
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424/16.7
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mm/inch
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Rear Mount Baffle Cut-out
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424/16.7
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mm/inch
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Depth
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205/8.1
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mm/inch
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Volume occupied by the driver
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7.0
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liters/ft3
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Net Weight
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13/28.9
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Kg/lbs
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Shipping Weight
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13.7/30.4
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Kg/lbs
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| Woofer 18", 900W AES, 1800W Program |
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