professional Subwoofer Speaker with 4" voice coil L15/8512F

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1.professional Speaker with 4" voice coil, which is suitable for band-pass, bass reflex subwoofer 2. competitive price 3.excellent quality 4. other sizes are also available upon request 5.Details: General Specifications Nominal Diameter 380/45 mm/inch Rated Impedance 8 ohm Nominal Power handling1 550 Watts Program Power2 1100 Watts Sensitivity(lw/lm)3 97 dB Frequency Range4 41-1.5K Hz Minimum Impedance(Zmin) 7.9 ohm Voice Coil Diameter 100/4 mm/inch Voice Coil Material Copper Voice Coil Winding Depth 21 mm Number of layers 2 Magnet gap depth 12 mm Cone Shape Straight Surround Shape Triple-roll Basket CastAluminum Flux Density 1.0 T Magnet Material/Mass Ceramic/3.55 kg Thiele-Small parameters Resonance frequency Fs 41 Hz DC resistance Re 6.4 ohm Mechanical factor Qms 2.95 Electrical factor Qes 0.36 Total factor Qts 0.32 Mechanical compliance Cms 0.10 mm/N Mechanical resistance of suspension losses Rms 12.8 mech-ohm Effective Moving Mass Mms 144 gr Half-space efficiency Eff 2.2 % BL Factor BL 26 T.m Equivalent Cas air load Vas 117 liters Effective piston area Sd 0.0908 m2 Max.linear excursion Xmax 8 mm Voice-coil inductance LelK 1.67 mH Mounting Information Overall Diameter 388 mm Bolt Circle Diameter 370 mm Bolt Hole Diameter 6.5 mm Baffle Cutout Diameter 358 mm Overall Depth 153 mm Net Weight 11 kg

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Guangzhou Hipower Audio CO.,LTD

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