Guangzhou Hengda Audio Equipment Co., Ltd.  

Product Name: 12 Inch PRO Sound Subwoofer Sub Woofer Speakers Best DJ Speakers Model NO.: HDW-1211 THD: <0.005% Monitor: None Application: Commercial, Home Speaker Material: metal Speaker System: Mono Operation Mode: Wire / Remote Control Activity: Passive Hi-Fi: Not Hi-Fi Noise: <95dB Sensitivity: 98 dB Magnet: Ferite Voice Coil: 3 Inch (75mm) Basket: Cast Aluminium Trademark: HD Transport Package: by Export Carton Specification: Net Weight: 7.95KG Origin: Guangzhou, China HS Code: 851829000 Product Description 12 inch PRO Sound Subwoofer Sub Woofer Speakers Best DJ Speakers General SpecificationsNominal Diameter300/12mm/inchRated Impedance8ohmNominal Power handling450WattsProgram Power900WattsSensitivity(lw/lm)98dBFrequency Range51-2.8KHzMinimum Impedance(Zmin)4.2ohmVoice Coil Diameter75mm/inchVoice Coil MaterialAluminiumNumber of layersMagnet gap depth12mmSurround ShapeM-rollBasketCast AluminiumMagnet190 FerriteMounting InformationOverall Diameter313mmBolt Circle Diameter295mmBaffle Cutout Diameter282mmOverall Depth143mmNet Weight7.95kgShipping weight8.6kgShipping Box330*330*150mmThiele-Small ParametersResonance frequencyFs51HzDC resistanceRe4.2ohmMechanical factorQms10.33Electrical factorQes0.36Total factorQts0.35Mechanical complianceCms0.17mm/NMechanical resistanceRms1.8mech-ohmof suspension lossesEffective Moving MassMms57.9grHalf-space efficiencyEff2.36%BL FactorBL14.7T.mEquivalent Cas air loadVas65.8litersVoice-coil inductanceLelK0.6mHINTRODUCTIonHengda Audio is a professinal speakermanufacturerwith experience in the PA speaker field for 10years. We make different tranducers,compression drivers. We not only provide goods but technology. OEM and ODM are both welcome.