RCF LF18G401 The Lf18g401 Is A 18-inch Woofer W/linear Frequency Response Cheracteristics & Very High Power Handling.

Description

This item is brand-new, factory sealed.

Uses a fibre loaded cone assembly along w/a high excursion triple roll, constant geometry surround.* The LF18G401 is ideal for use in applications where incredible power handling, long excursion & perfect control is required.* Ideal for high quality professional bass reflex & bass-horn system.* The robust machanical design & optimised weight of the device make it desiderable for use in fixed installation or portable professional loudspeaker system.* 4-inch, fiberglass inside/outside copper voice coil* 1800W continuous program power handling* 98 dB Sensitivity* 30 Hz – 1 kHz Frequency range* Dual spider design w/silicon based dampening control* Triple-roll surround & corrugated straight cone geometry General Specifications* Nominal Diameter: 460 / 18 mm/inch* Rated Impedance: 8 Ohms* Program Power: 1800 W AES* Power handling capacity: 900 W AES* Sensitivity: 98 dB* Frequency Range: 30 Hz to 1000 Hz* Effective Piston Diameter: 395 / 15.6 mm/inch* Max Excursion Before Damage (peak to peak): 50 / 2.0 mm/inch* Minimum Impedance: 5.9 Ohms* Voice Coil Diameter: 100 / 4 mm/inch* Voice Coil Material: Copper* Voice Coil Winding Depth: 23 / 0.9 mm/inch* Number of layers: 2* Kind of layer: inside / outside* Top Plate Thickness: 12 / 0.5 mm/inch* Cone Material: No pressed pulp* Cone Design: Straight* Surround Material: Polycotton* Surround Design: Triple roll Thiele/Small Parameters* DC resistance: 4.8 Ohms* Mechanical factor: 7.6* Electrical factor: 0.30* Total factor: 0.29* BL Factor: 24.6 T m* Effective Moving Mass: 182 g* Equivalent Cas air load: 268 liters* Effettive piston area: 0.122 m²* Max. linear excursion (mathematical): 8.5 mm* Voice – coil inductance at 1kHz: 2.4 mH* Half-space efficiency: 3.09% 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 / 0.3 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: 7.0 / 0.25 liters/ft³* Net Weight: 13 / 28.9 kg/lbs Shipping information* Shipping weight: 13.7 / 30.4 kg/lbs