Guangzhou Hengda Audio Equipment Co., Ltd.  

Product Name: Nice Performance 12 Inch PRO Sound Equipment Loud Speakers Subwoofer Model NO.: HDW12134 THD: <0.005% Monitor: None Application: Commercial, Home, Stage, Theater, Commercial Speaker Material: metal Speaker System: Mono Operation Mode: Wire / Remote Control Activity: Passive Hi-Fi: Not Hi-Fi Noise: <95dB Sensitivity: 98 dB Voice Coil Diameter: 3 Inch Frequency Range: 47.2-2.4K Hz Type: Woofer Trademark: HD Transport Package: by Export Carton Specification: Net Weight: 7.1 KG Origin: Guangzhou, China HS Code: 851829000 Product Description Nice Performance 12 Inch PRO Sound Equipment Loud Speakers subwoofer General SpecificationsNominal Diameter300/12mm/inchRated Impedance8ohmNominal Power handling400WattsProgram Power800WattsSensitivity(lw/lm)98dBFrequency Range47.2-2.4KHzMinimum Impedance(Zmin)4.8ohmVoice Coil Diameter75mm/inchVoice Coil MaterialCopperNumber of layers2Magnet gap depth10mmSurround ShapeM-rollBasketCast AluminiumMagnet190Mounting InformationOverall Diameter313mmBolt Circle Diameter295mmBaffle Cutout Diameter282mmOverall Depth143mmNet Weight7.1kgShipping weight7.8kgShipping Box320*320*150mmThiele-Small ParametersResonance frequencyFs47.2HzDC resistanceRe4.8ohmMechanical factorQms7.57Electrical factorQes0.34Total factorQts0.33Mechanical complianceCms0.22mm/NMechanical resistanceRms2mech-ohmof suspension lossesEffective Moving MassMms51.4grHalf-space efficiencyEff2.57%BL FactorBL14.6T.mEquivalent Cas air loadVas87.3litersVoice-coil inductanceLelK0.8mHINTRODUCTIonHengda 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.