18-in Pro Woofer w/fibre loaded cone assembly & 2000W continuous power capacity

Incredibly linear frequency response characteristics, extreme high power handling while generating the lowest harmonic distortion of any comparable 18-in ch trasducer wtihin its application range.The L18P400 uses a fibre loaded cone assembly along w/a high excursion triple roll,constant geometry surround.A fully optimised T-pole design generate the minimum amount of flux modulation.The T-pole also features RCf Precision's spaced gap demodulation technology, progressively braking the voice coil, providing a much smoother transition for the moving mass as it reachees its maximum excursion limits. Forced air venting system. 4-in ch, fiberglass inside/outside copper voice coil 2000W continuous program power handling 97.5 dB Sensitivity 25 Hz - 1 kHz Frequency range Aluminum demodulation ring Forced air ventilation & 15mm top plate for minimum power compression Dual spider design w/silicon based dampening control Triple roll surround & corrugated straight cone geometry The L18P400 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 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 system. Nominal Diameter: 460 / 18 mm/inch Rated Impedance: 8 Ohms Program Power: 2000 W AES Power handling capacity: 1000 W AES Sensitivity: 97.5 dB Frequency Range: 25 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: 6.5 Ohms 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 Resonance frequency: 29 Hz DC resistance: 5.1 Ohms Mechanical factor: 7.6 Electrical factor: 0.29 Total factor: 0.28 BL Factor: 24.6 T - m Effective Moving Mass: 200 g Equivalent Cas air load: 340 liters Effettive piston area: 0.122 m-Squared Max. linear excursion mathematical: 8.8 mm Voice - coil inductance at 1kHz: 2.5 mH Half-space efficiency: 2.63% Overall Diameter: 46