RCF LF15N401, Woofer 15", 900 Watt RMS / 8 Ohm

Incredibly linear frequency response characteristics, the highest power handling of any comparable 15-inch neodymium transducer,the lower power compression. The LF15N401 uses a fibre loaded cone assembly along with a high excursion triple roll,constant geometry surround. This combination provides remarkable strength and a peak to peak maximum excursion of 52mm. The unique Dual-forced air venting system guarantee a very efficient voice coil ventilation for minimum power compression and higher power handling.

Features 4-inch, fiberglass inside/outside copper voice coil 1800W continuous program power handling 97 dB Sensitivity 35 Hz - 1.5 kHz Frequency range Dual-forced air ventilation and 15mm top plate for minimum power compression Dual spider design with silicon based dampening control Triple-roll surround and corrugated straight cone geometry

General Specifications Nominal Diameter: 380 / 15 mm/inch Rated Impedance: 8 Ohm Program Power: 1800 W AES Power handling capacity: 900 W AES Sensitivity: 97 dB Frequency Range: 35 Hz ÷ 1500 Hz Effective Piston Diameter: 340/13.4 mm/inch Max Excursion Before Damage (peak to peak): 52 / 2.1 mm/inch Minimum Impedance: 6.3 Ohm Voice Coil Diameter: 100 / 4 mm/inch Voice Coil Material: Copper Voice Coil Winding Depth: 25 / 1.0 mm/inch Number of layers: 2 Kind of layer: inside / outside Top Plate Thickness: 15 / 0.6 mm/inch Cone Material: No pressed pulp Cone Design: Straight Surround Material: Polycotton Surround Design: Triple roll

Thiele/Small Parameters DC resistance: 5.1 Ohm Mechanical factor: 5.8 Electrical factor: 0.23 Total factor: 0.22 BL Factor: 27.8 T · m Effective Moving Mass: 158 g Equivalent Cas air load: 160 liters Effettive piston area: 0.091 m² Max. linear excursion (mathematical): 8.8 mm Voice - coil inductance @ 1kHz: 2.5 mH Half-space efficiency: 2.64%

Mounting information Overall Diameter: 393 / 15.5 mm/inch Bolt Circle Diameter: 371-376 / 14.6-14.8 mm/inch Bolt Hole Diameter: 6.5 / 0.3 mm/inch Front Mount Baffle Cut-out: 354 / 13.9 mm/inch Rear Mount Baffle Cut-out: 354 / 13.9 mm/inch Depth: 158 / 6.2 mm/inch Volume occupied by the driver: 3.8 / 0.13 liters/ft³ Net Weight: 8.6 / 19.1 kg/lbs