12W0V3-4 - JL Audio 12" Single 4-Ohm W0V3 Series Subwoofer
Brand New JL Audio 12W0V3-4 12" 300 Watt 4 Ohm Car Stereo Subwoofer with DMA Optimized Motor SystemFeatures:    * JL Audio 12W0V3-4 12" 4 Ohm Subwoofer    * Impedance: 4 ohms    * Patented Elevated Frame Cooling    * Most Real Excursion In its class    * Highly Linea, DMA Optimized Motor System    * Designed for use in compact sealed or medium-size ported enclosures    * Lead-wire system woven into spider    * Metallic silver frame finish    * Mineral-Filled Polypropylene Cone    * Peak Power Handling: 1000 Watts    * RMS Power Handling: 500 Watts    * Nitrile Butadiene Rubber Material    * Thermal Power Handling Output: 300 Watt    * Free Air Resonance (Fs): 28.43 Hz     * DC Resistance (Re): 4.280 ohm    * Sensitivity: 85.64 dB     * Electrical "Q" (Qes): 0.715    * Mechanical "Q" (Qms): 10.709    * Total Speaker "Q" (Qts): 0.670    * Driver Displacement: 0.048 cu. ft.    * Equivalent Compliance (Vas): 2.530 cu. ft.    * Xmax Linear Excursion: 0.45''    * Reference Efficiency (no): 0.221%    * Efficiency (1W/1m): 5.64 dB SPL    * Effective Piston Area (Sd): 74.509 sq. in.    * Net Weight: 8.11 lbs