Guangzhou Hengda Audio Equipment Co., Ltd.  

Product Name: Wholesales PA System Professional PA Speaker System Model NO.: HDW-1809b THD: <0.005% Monitor: None Application: Commercial Speaker Material: metal Speaker System: Optional Combination Operation Mode: Wire / Remote Control Activity: Passive Hi-Fi: Not Hi-Fi Noise: <95dB Magnet: Ferrite Voice Coil Diameter: 100/4 mm/Inch Sensitivity: 98 dB Frequency Range: 39.7-1.5K Hz Basket: Cast Aluminium Type: 18 Inch Subwoofer Performance: Stable Trademark: HD Transport Package: Export Carton Specification: 18 inch Origin: Guangzhou, China HS Code: 851829000 Product Description General SpecificationsNominal Diameter460/18mm/inchRated Impedance8ohmNominal Power handling750WattsProgram Power1500WattsSensitivity(lw/lm)98dBFrequency Range39.7-1.5KHzMinimum Impedance(Zmin)5.2ohmVoice Coil Diameter100/4mm/inchVoice Coil MaterialCopperNumber of layers2Magnet gap depth12mmSurround ShapeW-rollBasketCast AluminiumMagnet220 FerriteMounting InformationOverall Diameter460mmBolt Circle Diameter445mmBaffle Cutout Diameter422mmOverall Depth208mmNet Weight12.2kgShipping weight13.3kgShipping Box490*490*250mmThiele-Small ParametersResonance frequency39.735.5HzDC resistance5.35.6ohmMechanical factor6.874.99Electrical factor0.440.41Total factor0.420.38Mechanical compliance0.090.06mm/NMechanical resistance6.515.6mech-ohmof suspension lossesEffective Moving Mass178.5349.2grHalf-space efficiency2.441.21%BL Factor2332.6T.mEquivalent Cas air load180.4115.2litersVoice-coil inductance1.41.2mH