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

• 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

Applications

• The LF18G401 is ideal for use in applications where incredible power handling, long excursion and perfect control is required.
• Ideal for high quality professional bass reflex and bass-horn system.
• 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

• 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

SHIPPING INFORMATION

• Shipping weight:13.7 / 30.4 kg/lbs