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Very linear frequency response characteristics, extreme high power handling while generating the lowest harmonic distortion of any comparable 18-inch transducer within its application range. The LF15X401 uses a fibre loaded cone assembly along with a high excursion triple roll surround. This combination provides remarkable strength and a peak to peak maximum excursion of 50 mm. The new dual forced hyper-venting system guarantee a very efficient voice coil ventilation for minimum power compression and incredible power handling.
Features 4-inch, fiberglass inside/outside copper voice coil 3000W continuous program power handling 96.5 dB Sensitivity 30 Hz - 1.5 kHz Frequency range Dual Forced Hyperventing System 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: 3000 W AES Power handling capacity: 1500 W AES Sensitivity: 96.5 dB Frequency Range: 30 Hz ÷ 1500 Hz Effective Piston Diameter: 340/13.4 mm/inch Max Excursion Before Damage (peak to peak): 50 / 1.97 mm/inch Minimum Impedance: 6.3 Ohm Voice Coil Diameter: 100 / 4 mm/inch Voice Coil Material: Copper Voice Coil Winding Depth: 30 / 1.18 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 Resonance frequency: 34 Hz DC resistance: 5.5 Ohm Mechanical factor: 7.6 Electrical factor: 0.30 Total factor: 0.29 BL Factor: 26.5 T · m Effective Moving Mass: 170 g Equivalent Cas air load: 146 liters Effettive piston area: 0.091 m² Max. linear excursion (mathematical): 11.5 mm Voice - coil inductance @ 1kHz: 2,5 mH Half-space efficiency: 1.90%
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: 145 / 5.7 mm/inch Volume occupied by the driver: 4.3 / 0.15 liters/ft³ Net Weight: 12.6 / 27.7 kg/lbs
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