Item Type:SpeakersBrand Name:AlpineModel Name:DDT-F25BImpedance:4ohmsSignal To Noise Ratio:0.1Car Maker:Acura、Aston Martin、Audi、Bentley、BMW、Bugatti、Buick、Cadillac、Chevrolet、Chrysler、citroen、Daewoo、Dodge、Ferrari、Ford、GMC、Honda、Hummer、Hyundai、Infiniti、Jaguar、Jeep、Kia、Lamborghini、Land Rover、Lexus、Lincoln、Lotus、Maybach、Mazda、Mercedes-Benz、Mercury、Mini、Nissan、skoda、Subaru、Suzuki、Toyota、VolkswagenFrequency Range (Hz):4 KHZ ~ 26 KHZOut Power:180wattMaterial Type:silk membrane trebleSpeakers Types:TweetersItem Size:1inchVoltage:12VAudio Sensitivity:90dbSpecial Features:High EfficiencyCar Make:UniversalColor Name:BlackItem Weight:0.2 kgBrand Name:ALPINE