Very linear frequency response characteristics, extreme high power handling while generating the lo

The LF15X401 is ideal for use in applications where sizable amounts of low frequency, long excursion and low distortion acoustic power is desired The robust mechanical design and optimised weight of the device make it desirable for use in fixed installation or touring professional loudspeaker systems. The transducer's 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