ITEM NAME:TDA7293 Audio Amplifier Board 100Wx2 Digital Stereo Power Amplifier Board W D9E8 TDA7293 Audio Amplifier Board 100Wx2 Digital Stereo Power Amplifier Board W D9E8 Product descriptions: Product name:TDA7293 dual channel power amplifier board Amplifier Chip:TDA7293 Power supply:dual AC12-32V(Recommended dual AC32V) Output power:100W*2 Respone frequence :20H-20KHz Output speaker:4-8ohm Number of channel:dual channel output Product dimensions : 112*92*50mm(L*W*H) Net wight:230g With a audio input cable Board classic design,can use for HIFI,AV power Amplifier,KTV audio box color: blue Material: metal + pc Package included:1* TDA7293 Audio Amplifier Board Note: the power supply must use dual output transformer, Dual AC12-32V. Cann't use DC power supply and battery .Doble DC double battery also Cann't.