Guangzhou Hengda Audio Equipment Co., Ltd.  

Product Name: Ideal Compact 12 Inch Subwoofer for Professional Speaker System Model NO.: HDW-12393 Brand: OEM and ODM Are Both Welcome. WORD nChannels: 2.1Channel Usage: Stage, Theater Radiation Mode: Indirect Radiation Type Style: Wireless Transducer Principle: Permanent Magnetic Speaker Cone: Paper Cone Transmission Mode: Electrical Category: Speaker Sensitivity: 95.7 dB Voice Coil Diameter: 3 Inch Frequency Range: 56.3-4K Hz Type: Woofer Speaker Magnet: Ferrite Surround Shape: Cloth-Edge Trademark: HD Transport Package: by Export Carton Specification: Net Weight: 6.95KG Origin: Guangzhou, China HS Code: 851829000 Product Description Chinese Supplier 12 Inch Professional Audio Acoustic Speaker General SpecificationsNominal Diameter300/12mm/inchRated Impedance8ohmNominal Power handling350WattsProgram Power700WattsSensitivity(lw/lm)99dBFrequency Range56.3-4KHzMinimum Impedance(Zmin)5.6ohmVoice Coil Diameter75mm/inchVoice Coil MaterialCopperNumber of layersMagnet gap depth10mmSurround ShapeM-rollBasketCast AluminiumMagnet190Mounting InformationOverall Diameter313mmBolt Circle Diameter295mmBaffle Cutout Diameter282mmOverall Depth140mmNet Weight6.95kgShipping weight7.7kgShipping Box320*320*150mmThiele-Small ParametersResonance frequencyFs56.3HzDC resistanceRe5.6ohmMechanical factorQms8.58Electrical factorQes0.39Total factorQts0.37Mechanical complianceCms0.13mm/NMechanical resistanceRms2.5mech-ohmof suspension lossesEffective Moving MassMms60.7grHalf-space efficiencyEff2.32%BL FactorBL17.7T.mEquivalent Cas air loadVas52litersVoice-coil inductanceLelK0.7mHINTRODUCTIonHengda Audio is a professinal speakermanufacturerwith experience in the PA speaker field for 10years. We make different tranducers,compression drivers and tweeters. We not only provide goods but technology. OEM and ODM are both welcome.