18 Inch Subwoofer 800W Speaker Parts to Build Speaker Box L18/8673

18 Inch Subwoofer At 800W Speaker Parts to Build Speaker box  Specification :General SpecificationsNominal Diameter460/18mm/inchRated Impedance8ohmNominal Power handling800WattsProgram Power1600WattsSensitivity(lw/lm)97dBFrequency Range36-1.5kHzMinimum Impedance(Zmin)6.97ohmVoice Coil Diameter125/5mm/inchVoice Coil MaterialCopper Clad Aluminum Voice Coil Winding Depth25mmNumber of layers2(Inside/Outside) Magnet gap depth12mmSurround ShapeM-roll BasketCast Aluminum Flux Density1.0TMagnet Material/MassCeramic     Thiele-Small parametersResonance frequencyFs36HzDC resistanceRe5.6ohmMechanical factorQms10.5 Electrical factorQes0.40 Total factorQts0.39 Mechanical complianceCms0.105mm/NMechanical resistanceof suspension lossesRms4.025mech-ohmEffective Moving MassMms188grHalf-space efficiencyEff2.5%BL FactorBL28T.mEquivalent Cas air loadVas223litersEffective piston areaSd0.1257m2Max.linear excursionXmax8mmVoice-coil inductanceLelK1.7mH  Mounting InformationOverall Diameter461mmBolt Circle Diameter424mmBolt Hole Diameter6.5x9.5mmBaffle Cutout Diameter439mmOverall Depth202mmNet Weight19.5kgIntroduction: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./* 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