Product Name: Professional Dual 18 Inch Speakers Sub Woofer Double 18 Inch Subwoofer Loudspeaker Model NO.: S28B Application: Commercial, Home, Outdoor Speaker Material: Wood Speaker System: Optional Combination Operation Mode: Wire / Remote Control Activity: Passive Hi-Fi: Not Hi-Fi Noise: <102dB Net Weight: 78kg Gross Weight: 81kg Package Size: 110x80X58 Cm Sensitivity(1W/1m): 100dB RMS Power Handling: 1200W Frequency Response: 30Hz-200Hz Box Material: Wood Dimension: 1065X780x561mm Trademark: OEM Transport Package: Double Cartons Specification: 18 inch Origin: China HS Code: 8518210000 Product Description S28B Dual 18 inch subwoofer loudspeaker Application: Meeting Room Theater, Hall, Gym Club, Dj Performing arts hallFeatures : Double 18 inch subwoofer with 4 inch voice coils Long throwing Boxes are made by accurate CNC machines and Wedge bonding process for entering the slotSpecification : SpecificationModel No.S28BFrequency Response:30Hz-200HzSensitivity ( 1W/1m ):100dBNominal Impedance:8ΩRated Power:1200W( AES )LF unit:2×18"Subwoofer speaker with 4 inch voice coilMax SPL(SPL):127dB(Continuous), 133 dB(Peak)Connector:2xNL4MP,2+2-Finishing:Black water-based paintingDimension (W×D×H):1065×780×561(mm)Net Weight:78(kg)Dimension :