ICQUANZX 2x50W 100W 2_1 Channel Subwoofer Amplifier Board with Treble and Bass Control Dual TPA3116 Chip DC 12-24V Bluetooth and AUX Inputs DIY Wireless Speakers AMP Board

Product Name: 2.1 channel TPA3116D2 Bluetooth amplifier AMP Chip: 2*TPA3116D2 Max Output Power: 2*50W+100W Power Supply: DC12~24V Channels: 2.1 Output Impedance: 4~8ohm Working Type: Class D Audio Input: AUX / Bluetooth 5.0 Packing Include 1 X ZK-TB21 Power Amplifier Board 1 X Protective Shell 1 X DC Plug 1 X ZK-TB21 Power Amplifier Board 1 X Protective Shell 1 X DC Plug 1 X Screwdriver 5 X Knob NOTE Only when the audio input is sufficient and the power supply voltage/current input is sufficient, can there be enough power output. The higher the power supply voltage, the greater the output power; The smaller the impedance of the speaker, the greater the output power. It is recommended to use a 4? speaker. Finally, please make sure that the power of the adapted power supply is greater than the actual working power of the AMP to ensure the maximum output power. Warm Reminder The power switch on the board is a standby switch. After the switch is turned off, the machine is in a low-power standby state. To completely turn off the power or unplug it for a long time, you can unplug the DC plug on the machine. Properly increasing the voltage or reducing the speaker impedance can effectively increase the output power.