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.

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 is ideal for use in applications where sizable amounts of low frequency, long excursion & low distortion acoustic power is desired The robust mechanical design & optimised weight of the device make it desirable for use in fixed installation or touring professional loudspeaker systems. The transducers low frequency extension, coupled w/its extremely low generation of harmonic distortion, also makes it ideal for use within critical listening applications such as studio monitoring subwoofer systems. 34 1500 Part Number 11100090 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 w/silicon based dampening control Triple-roll surround & corrugated straight cone geometry Nominal Diameter: 380 / 15 mm/inch Rated Impedance: 8 Ohms Program Power: 3000 W AES Power handling capacity: 1500 W AES Sensitivity: 96.5 dB Frequency Range: 30 Hz to 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 Ohms 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 Ohms 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 at 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 Shipping information Shipping weight: 13.6 / 29.9 kg/lbs