DescriptionBrand Name : KaisayaCertification : NONEOrigin : Mainland ChinaMaximum Power Per Channel : 30WModel Number : KSY -TPA3128Package : YesChannels : 2 (2.0)Type : Audio AmplifierType2 : Stereo AmplifierType3 : AmplifierType4 : amplifier audioType5 : amplifier hifiType7 : amplificador audioType8 : amplificador hifiType9 : amplifier chassisOutput Power : 30WX2Load range : 4-8 ohmTPA3128 Digital Power Amplifier Board 30W*2Power amplifier board type: Class D fever digital power amplifier boardChip model: TPA3128 D2 HD Class D ICSNR: 102dBDistortion: 2A (7V-15V voltage is recommended, current power supply above 3A)Output power: Maximum 230WNumber of channels: 2-channel stereoSize:50*38*15mmWeight: 17g (measured by non-professional equipment, there is a certain error)Wiring: The output interface only provides welding interface, friends who have no hands-on ability, please be careful to buy.Note that this capacitor is available in black and gray-blue. The performance is the same. It is not fixed which capacitor to use. This is not a reason for return.If the input voltage is overvoltage, reverse connection may damage the power amplifier board. The loss caused by this should be borne by the buyerQuestions about power1. Please useDC power supply(switching power supply, DC power adapter, linear power supply, etc.). It is forbidden to use AC power, that is, it is forbidden to use transformers (ring cows) to directly supply power. If it must be used, it must be output to the power amplifier after passing through the rectifier filter circuit. Friends without electronic foundations are not recommended to do so. If a transformer is used for power supply, the AC output cannot exceed 15V.2. Regarding the power supply voltage and current, please use5V-24V DC 2-3Apower supply3. The power quality directly affects the sound quality of the digital power amplifier. Please use a good quality power supply.