Guangzhou Hengda Audio Equipment Co., Ltd.  

Product Name: 12" Powered Professional Speaker PRO Audio Line Array Speaker System Model NO.: HDW-1232 Brand: OEM and ODM Are Both Welcome. WORD nChannels: 2.1Channel Usage: Stage, Home, Theater Radiation Mode: Indirect Radiation Type Style: Wireless Transducer Principle: Permanent Magnetic Speaker Cone: Paper Cone Transmission Mode: Electrical Category: Speaker Sensitivity: 98dB Voice Coil Material: Copper Voice Coil Diameter: 3 Inch Net Weight: 7.2 Kg Magnet: Ferrite Surround Materil: Cloth-Edge Trademark: HD Transport Package: by Export Carton Specification: 12 inch woofer Origin: Guangzhou, China HS Code: 851829000 Product Description 12 Inch Powered Professional Pa Subwoofer Speaker Pro Audio Line Array Speaker System Professional SpeakerGeneral SpecificationsNominal Diameter300/12mm/inchRated Impedance8ohmNominal Power handling350WattsProgram Power700WattsSensitivity(lw/lm)98dBFrequency Range59.3-3.5KHzMinimum Impedance(Zmin)4.8ohmVoice Coil Diameter75mm/inchVoice Coil MaterialCopperNumber of layersMagnet gap depth10mmSurround ShapeM-rollBasketCast AluminiumMagnet190Mounting InformationOverall Diameter313mmBolt Circle Diameter296mmBaffle Cutout Diameter286mmOverall Depth140mmNet Weight7.2kgShipping weight7.8kgShipping Box320*320*150mmThiele-Small ParametersResonance frequencyFs59.3HzDC resistanceRe4.8ohmMechanical factorQms9.81Electrical factorQes0.34Total factorQts0.33Mechanical complianceCms0.12mm/NMechanical resistanceRms2.2mech-ohmof suspension lossesEffective Moving MassMms58.9grHalf-space efficiencyEff2.82%BL FactorBL17.5T.mEquivalent Cas air loadVas48.3litersVoice-coil inductanceLelK0.7mHINTRODUCTIonHengda 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.