RCF LF18N451 18" High-Power Woofer

This item is brand-new, factory sealed.

* 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