- 4,0 – inch Inside/Outside copper voice coil
- 3000 Watt continuous program power handling
- 97.5 dB Sensitivity
- 25 Hz – 1kHz Frequency range
- Hypervented magnetic structure for minimum power compression
- Triple roll surround and exponential cone geometry
The LF18N405 is an extended low frequency with high power handling , designed to provide powerful and accurate bass frequencies with low distortion, low power compression and very high SPL. The LF18N405 uses a fibre loaded cone assembly along a large triple roll surround, this combination provides remarkable strength and control. The single spider system is specifically designed with a heavy cloth which ensures excellent control during large excursions. A fully optimised T-pole design generates the minimum amount of flux modulation. The Dual-forced air venting magnetic structure system provides a very efficient voice coil ventilation to minimize the power compression.
- General specifications
- Nominal Diameter: 18 inch / 457 mm
- Rated Impedance: 8 ohm
- Program Power: 3000 W
- Power handling capacity: 1500 W
- Sensitivity: 97.0 dB
- Frequency range: 30 – 1000 Hz
- Effective piston diameter: 395 mm / 15.55 inch
- Max. Excursion Before Damage: 58 mm / 2.28 inch
- Minimim Impedance: 6.0 ohm
- Voice Coil Diameter: 4.0 inch / 102 mm
- Voice Coil Winding Material: Copper
- Voice Coil Length: 36 mm / 1.42 inch
- Number of layers: 2
- Kind of layers: inside/outside
- Top Plate Thickness: 15 mm / 0.59 inch
- Cone Design: Curved
- Surround Material: Polycotton
- Surround Design: Triple roll
- Magnets: Neodymium
- Hypervented magnetic structure: Yes
- Spider: Single
- Thiele – small parameters
- Resonance frequency (Fs): 30 Hz
- DC resistance (Re): 4.90 ohm
- Mechanical factor: 7.00 Qms
- Electrical factor (Qes): 0.34 Qes
- Total factor: 0.32 Qts
- BL factor (BL): 26.50 T x m
- Effective moving mass (Mms): 261.0 g
- Equivalent Cas air loaded (Vas): 227.0 liters
- Effettive piston area (Sd): 0.120 m2
- Max. linear excursion (Xmax): 14.0 mm
- Voice coil inductance @ 1kHz (Le1k): 1.70 mH
- Half-space efficency (Eff): 1.70%
- 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: 425 mm / 16.73 inch
- Volume occupied by the driver: 5.5 liters / 0.22 ft3
- Standard compliance
- CE marking: Yes
- Size
- Weight: 8.8 kg / 19.4 lbs
- Height: 208 mm / 8.19 inches
- Diameter: 465 mm / 18.31 inches
- Shipping informations
- Package Width: 495 mm / 19.49 inches
- Package Weight: 10 kg / 22.05 lbs
- Package Height: 255 mm / 10.04 inches
- Package Depth: 525 mm / 20.67 inches
