18-in very high power handling & efficiency transducer specially designed to provide powerful & acc

The LF18N451 is ideal in applications where light weight,very high BL & power handling are required. It's especially used for tourimg,perfect for powerful lows in horn loaded sub bass system or reflex designs. 4.5 - inch Inside/Outside copper voice coil 3000 Watt continuous program power handling 97.5 dB Sensitivity 30 Hz - 1 kHz Frequency range Dual-forced air ventilation for minimum power compression Dual spider designed w/silicon based damping control BL of 30.2 Txm to provide a faster & accurate low frequency General Specifications Nominal Diameter: 460/18 mm/inch Rated Impedance: 8 Ohms Program Power: 3000 W AES Power handling capacity: 1500 W AES Sensitivity: 97.5 dB Frequency Range: 30 Hz to 1000 Hz Effective Piston Diameter: 395 / 15.6 mm/inch Max Excursion Before Damage peak to peak: 60/2.36 mm/inch Minimum Impedance: 6.3 Ohms Voice Coil Diameter: 115 / 4.5 mm/inch Voice Coil Material: Copper Voice Coil Winding Depth: 26 / 1.02 mm/inch Number of layers: 2 Kind of layer: inside / outside Top Plate Thickness: 15 / 0.6 mm/inch Cone Material: No presed pulp Cone Design: Curved Surround Material: Polycotton Surround Design: Triple roll Thiele/Small Parameters DC resistance: 5.0 Ohms Mechanical factor: 6.0 Electrical factor: 0.25 Total factor: 0.24 BL Factor: 30.2 T · m Effective Moving Mass: 235 g Equivalent Cas air load: 245 liters Effettive piston area: 0.122 m2 Max. linear excursion mathematical: 8.8 mm Voice - coil inductance at 1kHz: 2.6 mH Half-space efficiency: 2.54% Mounting information Overall Diameter: 465 / 18.3 mm/inch Bolt Circle Diameter: 442-447 / 17.4-17.6 mm/inch Bolt Hole Diameter: 6.5 / 0.25 mm/inch Front Mount Baffle Cut-out: 424/16.7 mm/inch Rear Mount Baffle Cut-out: 424 / 16.7 mm/inch Depth: 205 / 8.1 mm/inch Volume occupied by the driver: 5.5/0.19 liters/ft3 Net Weight: 10.6 / 23.3 kg/lbs Shipping information Shipping weight: 11.8 / 26 kg/lbs