Product Name: Professional Audio System DJ Player Mixing Console Mixer with USB and DSP L Model NO.: L Conductive Mode: D Element Number: Push-Pull Amplifier Voltage: AC 220V Output Number: 4 Sound Channel: 2.1 Function: Pre-amplifier Tube Type: Transistor Amplifier Used For: Professional Usage: Hi-Fi, AV, KTV System, Public Address System& Stage Type: Professional Amplifier Trademark: P@A Transport Package: Carton Box or Flight Case Origin: Guangzhou Product Description 1.Specification:Item No.L8/4RUL10/4RUFrequency Response20Kz~20KHz±3dBInput Channel4-channel6-channelEFFECTSECHO 12ms-200msVOUT4V MaxInput SensitivityMIC:60dB LINE : 20dB Eff Ret : -20dB Tape In: -20dBInputimpeance active balancedHi:±15dB/10KHz Mid: ±15dB/250HzLow: ±15dB/80HzSignal-to-Noise Ratio>85DbTHD0.03% (1KHz Full Power)Headphone output power7V 220ΩPower consumption50W(L8/4RU), 50W(L10/4RU)Net Weight120×350×430mm(4.72in×13.78in×16.93in)120×410×430mm(4.72in×16.14in×16.93in)Dimension(H×W×D)120×350×430mm(4.72in×13.78in×16.93in)120×410×430mm(4.72in×16.14in×16.93in)2.Our advantage:1)Our prodect have passed ISO9001,SGS,CE, CCC, ROHS and so on.2)We are a factory with strong technology and good after sales.3)We can design the amplifier and speaker by our clients.3.Our Application4.FAQ:Q1: How long is the warranty for the speakers?A1: 3year warranty.Q2: How about the delivery time?A2: 3-7days for stock. 10-20 days for new order depend on order quantity since receipt of 30% T/T depositQ3: Can you produce according to customers' design?A3: Yes we can, we are professional manufacturer,OEM &ODM are welcome .Q4:Areyouafactoryortradingcompany?A4:Weareamanufacturer(withourownfactory) . Wearea leading manufacturer, exporter and supply chain service provider on professional audio system.Q5:Whereisyourfactorylocated?HowcanIvisitthere?A5: Ourfactoryislocatedin BAIYUN District,GuangzhouCity,GuangdongProvince,China. about 30minsbycarfrom Guangzhou Baiyun Airport,Q6:CanyoudoOEMandODM?A6:Yes,both.We can put your idea into products. We have professional research development team, develop the products according to customer required.5.Our Company: