L18/8646-Parlante PRO Audio Professional Speaker of 18 Inch Subwoofer

L18/8646-Parlante Pro Audio Professional Speaker of 18 Inch Subwoofer Product main features:- Impact subwoofer- 4"voice coil- 650Watt, 97.5dB- Yearly sales: 3000 PCS- Terrific PRO audio subwoofer of compass bass relexIntroduction: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 Diameter460/18mm/inchRated Impedance8ohmNominal Power handling650WattsProgram Power1300WattsSensitivity(lw/lm)97.5dBFrequency Range40-1.5KHzMinimum Impedance(Zmin)6.55ohmVoice Coil Diameter100/4mm/inchVoice Coil MaterialCopper Voice Coil Winding Depth23mmNumber of layers2 inside/outside Magnet gap depth12mmSurround ShapeTriple-roll BasketCast Aluminum Flux Density1.0TMagnet Material/MassCeramic     Thiele-Small parametersResonance frequencyFs40.6HzDC resistanceRe5.4ohmMechanical factorQms14.92 Electrical factorQes0.35 Total factorQts0.34 Mechanical complianceCms0.0868mm/NMechanical resistanceof suspension lossesRms3.02mech-ohmEffective Moving MassMms176grHalf-space efficiencyEff3.36%BL FactorBL26.38T.mEquivalent Cas air loadVas181.94litersEffective piston areaSd0.1225m2Max.linear excursionXmax8mmVoice-coil inductanceLelK1.93mH  Mounting InformationOverall Diameter466.5mmBolt Circle Diameter442mmBolt Hole Diameter6.5*5.5mmBaffle Cutout Diameter423mmOverall Depth202mmNet Weight17kg/* 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