Description
- 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 || SIZE || Height : 196 mm / 7.72 inches || Diameter : 465 mm / 18.31 inches || Weight : 13 kg / 28.66 lbs ||
- 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 ||
- SPECIFICATIONS || 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 : 3 ||
- 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 efficiency (Eff) : 0.0309 ||
- 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 || SHIPPING INFORMATION || Height : 260 mm / 10.24 inches || Width : 500 mm / 19.69 inches || Depth : 520 mm / 20.47 inches || Weight : 15 kg / 33.07 lbs
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 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 || 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 : 3 || 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 efficiency (Eff) : 0.0309 || 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 || SIZE || 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