Amplifier Board TPA3116 Dual-Channel Stereo Audio Amplifier 9-25V 50W Digital Power Amplifier Board Video Audio Accessories DIY

The main technical parameters: Board size: 50 (width) X 79 (deep) X 22 (height) mm (excluding the protrusion of the potentiometer 15mm) Operating voltage range: DC 9-25V (current is more than 3A, if it is more powerful, it is recommended to be 19-24V/4A or more) Audio input sensitivity: 600mv Horn impedance: Two-channel speaker: 4-8 ohms. Maximum output power: 50W (left channel) + 50W (right channel) two channels Two-channel output power: 12V/10+10W (8 Euro) / 15+15W (4 Euro) 15V/13+13W (8 Euro) / 25+25W (4 Euro) 19V/22+22W (8 Euro) /> 39+39W (4 Euro) 22-24V/> 32+32W (8 ohms) / >50+50W (4 ohms) Note: The output power is related to the power supply voltage, the horn impedance, and the input size of the audio source. Usually the power supply voltage is higher and the supported output power will be larger. Speakers with different impedances can support different output powers. Usually, the power of the speakers is smaller and easier to achieve.