Description:High output power digital amplifierDC 15-36V power supply, with reverse polarity protectionWhen heat sink temperature rises to a certain extent, the cooling fan will workSupport BTL mode, 36V 3ohm for single channel with 220W outputTwo-channel stereo, sound quality is very goodSound quality is very good and it can drive 4/6/8 ohm speakers.It has sufficient and high power output 2 x 160W.It supports BTL mode and when heat sink temperature rises to a certain extent, the cooling fan will work.Features:1, High output power digital amplifier.2, DC 15-36V power supply, with reverse polarity protection.3, When heat sink temperature rises to a certain extent, the cooling fan will work.4, Support BTL mode ( J1, J2, J3, J4 on the back of amplifier board should be shorted), 36V 3ohm for single channel with 220W output.5, Two-channel stereo, sound quality is very good.Specifications:Amplifier chip: TDA7498EWorking voltage: DC 15-36V (Recommend 32V, 8A, if power is too small will appear distortion and so on.)Output power: 2 x 160WNumber of channels: Two-channel StereoEfficiency: 85%Applicable speaker impedance: 4/6/8ohm(8ohm is the best)PCB board size: 108 x 78mm / 4.25 x 3.1"Weight: 172g(approx.)Package includes:1 x Digital Amplifier Board