Overview4 - inch, fiberglass inside-outside copper voice coil 2400 Watt continuous program power handling 98 dB Sensitivity 30 Hz - 1 kHz Frequency range Dual-forced air ventilation and 15mm top plate for minimum power compression Dual spider design with silicon based dampening control Triple-roll surround and corrugated straight cone geometry Specifications
Incredibly linear frequency response characteristics,the highest power handling of any comparable 18-inch neodymium transducer, the lowest power compression. The LF18N401 uses a fibre loaded cone assembly along with a high excursion triple roll,constant geometry surround. This combination provides remarkablestrength venting system guarantee a very efficient voice coil ventilation for minimum power compression and higher power handling.
Features General specifications
Nominal Diameter : 18 inch / 457 mm
Rated Impedance : 8 ohm
Program Power (watt) : 2400 W
Power handling capacity : 1200 W
Sensitivity : 98.0 dB
Frequency range : 30 - 1000 Hz
Effective piston diameter : 395 mm / 15.55 inch
Max. Excursion Before Damage : 52 mm / 2.05 inch
Minimum Impedance (ohm) : 6.3 ohm
Voice Coil Diameter : 4.0 inch / 102 mm
Voice Coil Winding Material : Copper
Voice Coil Length : 25 mm / 0.98 inch
Number of layers : 2
Kind of layers : inside/outside
Top Plate Thickness : 15 mm / 0.59 inch
Cone Design : Straight
Surround Material : Polycotton
Surround Design : Triple roll
Magnets : Neodymium
Dual-force air ventilation : Yes
Spider : 02
Thiele - small parameters
Resonance frequency (Fs) : 32 Hz
DC resistance (Re) (ohm) : 5.10 ohm
Mechanical factor : 6.50 Qms
Electrical factor : 0.27 Qes
Total factor : 0.26 Qts
Bl factor (Bl) (T x m) : 27.80 T x m
Effective moving mass (Mms) : 201.0 g
Equivalent Cas air loaded (Vas) : 257.0 liters
Effective piston area (Sd) : 0.120 m2
Max. linear excursion (Xmax) : 9 mm
Voice coil inductance @ 1kHz (Le1k) : 2.50 mH
Half-space efficency (Eff) : 3.01%
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 : 5.5 liters / 0.22 ft3
Standard compliance
Safety agency : CE compliant
Size / Weight
Height : 204 mm / 8.03 inches
Diameter : 465 mm / 18.31 inches
Weight : 9.5 kg / 20.94 lbs
Shipping information
Package Height : 260 mm / 10.24 inches
Package Width : 520 mm / 20.47 inches
Package Depth : 500 mm / 19.69 inches
Package Weight : 11.4 kg / 25.13 lbs
