Product Name: High Quality Professional Neodymium Speaker Driver De Audio 3 Inch Model NO.: H74/8082 THD: <0.005% Monitor: None Certification: ISO Application: Stage Speaker Material: Neodynium Speaker System: Passive Operation Mode: Wire / Remote Control Activity: Passive Hi-Fi: Not Hi-Fi Noise: ?105dB Type: High Frequency Driver Brand: Hipower Customer Satisfaction: 98% Performance: Stable Markets: Europe,Asia,North and South America Magnet Type: Neodymium Trademark: Hipower Transport Package: Export Carton Specification: 74mm Origin: China HS Code: 85182900 Product Description High quality professional neodymium speaker driver de Audio 3 InchIntroduction:We are a PA speaker factory of more than 13 years in Panyu,Guangzhou,China,occupying 2000 square meters with 3 production lines.We make Pro audio speakers from small sizes upto 24 inch.R&D capability:In the R&D, Hipower's experienced engineers and technicians carry out researches on new materials.state-of-art components and advacned product designs with the help of an anechoic chamber,test instruments and simulation sofwares.Markets:Ever since 2003, we have been exporting to many countries, including southeast Asia, Europe, North Ameria and South America.Speaker's Details:General Specifications3Throat Diameter36/1.4mm/inchRated Impedance8ohmPower handling(1.5k-18kHz) Nominal90WattsContinuous Porgram180WattsSensitivity4(lw/lm,on axis,on horn)107dBFrequency Range1000-20kHzMinimum Impedance(Zmin)7.7ohmVoice Coil Diameter75/3mm/inchVoice Coil MaterialEdgewound AluminumVoice Coil Winding FormerKaptonPhase Plug MaterialAluminumFlux Density2.0TMagnet Material/MassNoedymiumMounting InformationOverall Diameter131mmOverall Depth55mmNet Weight1.9kg 4xM6 holes,90°on 100mm diameter