Overview4-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 Specifications
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 General specifications
Nominal Diameter : 18 inch / 457 mm
Rated Impedance : 8 ohm
Program Power (watt) : 1800 W
Power handling capacity : 900 W
Sensitivity : 98.0 dB
Frequency range : 30 - 1000 Hz
Effective piston diameter : 395 mm / 15.55 inch
Max. Excursion Before Damage : 50 mm / 1.97 inch
Minimum Impedance (ohm) : 5.9 ohm
Voice Coil Diameter : 4.0 inch / 102 mm
Voice Coil Winding Material : Copper
Voice Coil Length : 23 mm / 0.91 inch
Number of layers : 2
Kind of layers : inside/outside
Top Plate Thickness : 12 mm / 0.47 inch
Cone Design : Straight
Surround Material : Polycotton
Surround Design : Triple roll
Magnets : Ceramic
Spider : 03
Thiele - small parameters
Resonance frequency (Fs) : 33 Hz
DC resistance (Re) (ohm) : 4.80 ohm
Mechanical factor : 7.60 Qms
Electrical factor : 0.30 Qes
Total factor : 0.29 Qts
Bl factor (Bl) (T x m) : 24.60 T x m
Effective moving mass (Mms) : 182.0 g
Equivalent Cas air loaded (Vas) : 268.0 liters
Effective piston area (Sd) : 0.120 m2
Max. linear excursion (Xmax) : 9 mm
Voice coil inductance @ 1kHz (Le1k) : 1.80 mH
Half-space efficency (Eff) : 3.09%
Mounting information
Overall diameter : 465 mm / 18.31 inches
Bolt circle diameter : 442-447 mm / 17.4-17.6 inch
Bolt hole diameter : 7 mm / 0.28 inch
Front mount baffle cut-out : 424 mm / 16.69 inch
Rear mount baffle cut-out : 424 mm / 16.69 inch
Volume occupied by the driver : 6 liters / 0.24 ft3
Standard compliance
Safety agency : CE compliant
Size / Weight
Height : 196 mm / 7.72 inches
Diameter : 465 mm / 18.31 inches
Weight : 13 kg / 28.66 lbs
Shipping information
Package Height : 260 mm / 10.24 inches
Package Width : 500 mm / 19.69 inches
Package Depth : 520 mm / 20.47 inches
Package Weight : 15 kg / 33.07 lbs
