Product Name: Professional Stage Sound Single 18 Inch Passive Speaker Box Model NO.: QGS-18 THD: <0.005% Monitor: None Certification: ISO Application: Stage Speaker Material: Wood Speaker System: Passive Operation Mode: Wire / Remote Control Activity: Passive Hi-Fi: Not Hi-Fi Noise: <102dB Type: 18 Inch Subwoofer Brand: Hipower Customer Satisfaction: 98% Performance: Stable Markets: Europe,Asia,North and South America Cabinet Texture: Polywood Trademark: Hipower Transport Package: Export Carton Specification: 18 inch Origin: China HS Code: 851822000 Product Description Professional Stage Sound Single 18 inch Passive Speaker BoxProduct Main Features:18'' subwooferFrequency Response(±3dB)48-250k HzSensitivity (1W/1M)99dB SPLNominal Impedance8 ohmsRated Power[2]650W RMS, 2600W PeakEnclosure Dimension560.4(W)x690(H)x595(D)mmComponents1xHiPower L18/6620Shipping Dimensions618(W)x752(H)x652(D)mmGross weight with Carton44KGNet Weight41KGIntroduction: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 Capacity: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.