4 Ohms Coaxial Professional Low Frequency Speaker

4 Ohms Coaxial Professional Low Frequency TransducerProduct main features:1.200W continuous program power handling2.95dB sensitivity 1w/1m3.106Hz-50k Hz frequency response range4.50mm high temperature copper voice coil with Kapton former5.The horn is connected to a HF driver with 1" exit throat6.Hipower Audio is a professinal speaker factory with experience in the speaker field for 13 years. We make our own tranducers ,HF drivers and empty cabinets.Introduction:We are a PA speaker factory of more than 13 years in Panyu,Guangzhou,China,occupying 2000 square meters with 3 production lines.We make Pro audio speakers from small sizes upto 24 inch.R&D capability:In the R&D, Hipower's experienced engineers and technicians carry out researches on new materials.state-of-art components and advacned product designs with the help of an anechoic chamber,test instruments and simulation sofwares.Markets:Ever since 2003, we have been exporting to many countries, including southeast Asia, Europe, North Ameria and South America.   Speaker's Details:General SpecificationsNominal Diameter200/6.5mm/inchRated Impedance4ohmNominal Power handling200WattsProgram Power400WattsSensitivity(lw/lm)95dBFrequency Range106-50KHzMinimum Impedance(Zmin)4.0ohmVoice Coil Diameter50/2mm/inchVoice Coil MaterialCopper Voice Coil Winding Depth15mmNumber of layers2 Magnet gap depth10mmFormer material Kapton Surround ShapeM-roll BasketCast Aluminum Flux Density1.1TMagnet Material/MassNeodymium     Thiele-Small parametersResonance frequencyFs106HzDC resistanceRe3.6ohmMechanical factorQms2.83 Electrical factorQes0.32 Total factorQts0.29 Mechanical complianceCms0.19mm/NMechanical resistanceof suspension lossesRms2.75mech-ohmEffective Moving MassMms11.6grHalf-space efficiencyEff1.82%BL FactorBL9.2T.mEquivalent Cas air loadVas5.1litersEffective piston areaSd0.0139m2Max.linear excursionXmax5mmVoice-coil inductanceLelK0.42mH  Mounting InformationOverall Diameter162mmBolt Circle Diameter172mmBolt Hole Diameter5.5mmBaffle Cutout Diameter148mmOverall Depth100mm/* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1