- 4 – 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
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.
- General specifications
- Nominal Diameter: 18 inch / 457 mm
- Rated Impedance: 8 ohm
- Program Power: 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
- Minimim Impedance: 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: Single with silicon based damping control
- Thiele – small parameters
- Resonance frequency (Fs): 32 Hz
- DC resistance (Re): 5.10 ohm
- Mechanical factor: 6.50 Qms
- Electrical factor (Qes): 0.27 Qes
- Total factor: 0.26 Qts
- BL factor (BL): 27.80 T x m
- Effective moving mass (Mms): 201.0 g
- Equivalent Cas air loaded (Vas): 257.0 liters
- Effettive piston area (Sd): 0.120 m2
- Max. linear excursion (Xmax): 9.0 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
- CE marking: Yes
- Size
- Weight: 9.5 kg / 20.94 lbs
- Height: 204 mm / 8.03 inches
- Diameter: 465 mm / 18.31 inches
- Shipping informations
- Package Width: 520 mm / 20.47 inches
- Package Weight: 11.4 kg / 25.13 lbs
- Package Height: 260 mm / 10.24 inches
- Package Depth: 500 mm / 19.69 inches
