TRF SPL SW1545 D0.5

SPECIFICATION: MODEL:TRF SW1545 D0.5 Size: 15nch Cone: Competition Grade paper Surround material: Foam with FABRIC Voice coil made : MADE IN USA Voice coil dimension : 4.0inch Voice coil layer: 8layer Dust cap : Carbon FROM MADE IN EUROPE Nominal impedance:dual 0.5ohm Voice coil wire:aluminium Spider dimension : 4''ID / 10''OD Spider material : NOMEX Spider layers :2pcs x 4layers RMS Power: 4500wrms MAX Watt: 9000wmax Sensitivity:87.3dB Resonance frequency(f0):37.6Hz Mechanical Q factor(Qms):6.65 Electrical Q factor(Qes):0.42 Total Q factor:(Qts):0.39 Xmax: 27mm Force factor: N/A Magnet Weight:400 Oz Net weight: 33kg Basket:Die cast Alumium Magnet: Ferrite Magnet dimension:Φ250*20mm X 3PCS 1=Outer Dimension: 392mm - 15.4" 2=Mounting Depth: 280mm - 11" 3=Magnet Dimension: 260mm - 10.2" 4=Mounting Hole Dimension: 363mm - 14.3"