RCF LF18N451 18″ High-Power Woofer

Description

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