LIVISN Subwoofer Audio Amplifier Board Tda7294 100W Subwoofer High Power Audio Amplifier Board Accessories DIY Audio Amplifier Module

Power transformer voltage range: dual AC 12-22V, when connecting the power supply, please carefully confirm and connect it correctly, otherwise the chip may be burned out. Do not use a single power supply, such as a battery. The greater the input power, the more power the amplifier will output. When high power output, please pay attention to the heat dissipation of the chip! Changing the size of R13 can change the output power. The smaller R13 is, the smaller the output power is, and vice versa. The greater the input power, the hotter the chip is, exceeding 80 degrees Celsius, please replace the larger heat sink. Working voltage: DUAL 12-22V AC, 50-120W ring cow transformer is recommended. Output power: 60-100W; Speaker impedance: 4-8 ohms, 6-8 inches, 50-150w; Cut-off frequency: 50-200hz; Signal to noise ratio:> 80db; Distortion: <1%; Working temperature: <80, if the temperature is too high, please strengthen heat dissipation; MOUDLE SIZE: 114 * 93 * 43; PCB SIZE: 114 * 70MM; Mass: 250g;