FW405N

Fostex 15" Woofer Newly developed aluminum die-cast frame based on the strength analysis by the fine-element method. Stronger magnetic circuit using 200mm ferrite magnet is equipped for higher input durability and larger amplitude driving. Oval mounting hole can be adjusted between 370 - 375mm. FW405N has the compatibility with not only FOSTEX old 15 drivers, but some famous woofers replacements. Hybrid cone paper, the porous super damping fiber + carbon fiber mixed into tree pulp basis material, is used to realize the lightweight & high stiffness diaphragm. Treated foam surround 3" voice coil diameter Nominal Impedance: 8 Ohms Voice Coil Resistance: 6.89 Ohms Recommended Frequency Range: 27-2500 Hz Voice Coil Inductance: 0.64 mH Force Factor: 15.7 N/A Long Term Power Handling: 150 W Free Air Resonance: 27 Hz Characteristic Sensitivity (2.83V/1m): 92.5 dB Moving Mass: 100.8 g Voice Coil Diameter : 80 mm Suspension Compliance: 0.344 mm/N Effective Piston Area: 890 cm2 Maximum Coil Travel Peak: 7.9 mm VAS: 392.5 Ltrs QMS: 6.76 QES: 0.478 Total Weight: 22 lb QTS: 0.45 Frame diameter: 395mm Cut out diameter: 350mm Depth: 180mm