L12/84307 12 Inch 300watts Audio Professional Passive PA Speakers-Neodymium New

L12/84307 -Professional Audio 12" PA SpeakerIntroduction:We are a PA speaker factory of more than 15 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 Diameter300/12mm/inchRated Impedance8ohmNominal Power handling300WattsProgram Power600WattsSensitivity(lw/lm)95dBFrequency Range45-4.0KHzMinimum Impedance(Zmin)6.2ohmVoice Coil Diameter64/2.5mm/inchVoice Coil MaterialCopper Voice Coil Winding Depth16mmNumber of layers2(Inside/Outside) Magnet gap depth8mmSurround ShapeM-roll BasketCast Aluminum Flux Density1.1TMagnet Material/MassNeodymium   Mounting InformationOverall Diameter318mmBolt Circle Diameter301mmBolt Hole Diameter6.5*9mmBaffle Cutout Diameter287mmOverall Depth137mmNet Weight3.3kg  Thiele-Small parametersResonance frequencyFs45HzDC resistanceRe5.6ohmMechanical factorQms9.39 Electrical factorQes0.49 Total factorQts0.48 Mechanical complianceCms0.24mm/NMechanical resistanceof suspension lossesRms1.67mech-ohmEffective Moving MassMms52grHalf-space efficiencyEff1.6%BL FactorBL12.5T.mEquivalent Cas air loadVas101litersEffective piston areaSd0.0547m2Max.linear excursionXmax5mmVoice-coil inductanceLelK0.9mH/* 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