Remarks:With power cord and speaker cableRecommended with a 10-12 inch 250W-300W subwoofer speakerThe 350W subwoofer power amplifier board uses the disassembled tube and has a very high signal-to-noise ratio.No noise can be heard without plugging the input line.It also has full relay protection,such as power-on delay,DC output,horn short circuit,etc.The whole body adopts the front and rear stage split design,which is convenient for DIY installation,and the pre-stage low-frequency processing capability is strong.Can be used with a variety of low speakers,connected to passive speakers can be used.Maximum Power Per Channel:Above 200WModel Number:350W Subwoofer Amplifier BoardChannels:1Working voltage:double AC24-28VOutput power:350WChip type:SankenChannel type:MonoColor:greenmaterial:metalPackage Contents:1 set 350W subwoofer power amplifier boardOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.