- 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
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.
- General specifications
- Nominal Diameter: 18 inch / 457 mm
- Rated Impedance: 8 ohm
- Program Power: 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
- Minimim Impedance: 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: Dual with silicon based damping control
- Thiele – small parameters
- Resonance frequency (Fs): 33 Hz
- DC resistance (Re): 4.80 ohm
- Mechanical factor: 7.60 Qms
- Electrical factor (Qes): 0.30 Qes
- Total factor: 0.29 Qts
- BL factor (BL): 24.60 T x m
- Effective moving mass (Mms): 182.0 g
- Equivalent Cas air loaded (Vas): 268.0 liters
- Effettive piston area (Sd): 0.120 m2
- Max. linear excursion (Xmax): 9.0 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
- CE marking: Yes
- Size
- Weight: 13 kg / 28.66 lbs
- Height: 196 mm / 7.72 inches
- Diameter: 465 mm / 18.31 inches
- Shipping informations
- Package Width: 500 mm / 19.69 inches
- Package Weight: 15 kg / 33.07 lbs
- Package Height: 260 mm / 10.24 inches
- Package Depth: 520 mm / 20.47 inches
