915 Generation -TB21S 2.1 Channel Bluetooth 5.1 Amplifier Board

Product name: 2.1 channel Bluetooth audio amplifier module
Product model: -TB21S
Bluetooth version: 5.1
Input mode: Bluetooth+AUX+USB disk+USB sound card
Number of channels: 2.1 channels (left and right channels+subwoofer) Volume adjustment: high-end encoder knob adjustment, feel
Power supply: DC12-24V 8A
Input sensitivity: 500mV
Output power: left and right channels less than 50W, subwoofer less than 100W
Adaptive speaker: 20-50W, 4-8 Ω for left and right channels; Subwoofer 20-100W 4-8 ohm
Protection mechanism: overvoltage, undervoltage, overheating, DC detection, short circuit protection function: support Audio APP control
Product size: 118 X 100X 23mm
Prompt: When the audio signal input is enough and the power supply voltage/current is enough, there will be enough output power! The higher the power supply voltage, the greater the output power, the smaller the horn impedance, and the greater the output power! that the power of the adaptive power supply is the actual working power of the power amplifier!
Colour:black
Material:PCB+metal Package Contents:
1 x amplifier board
1 x DC adapter
1 x screwdriver Only the above package content, other are not included.
Note: Light reflection and different displays may cause the color of the item in the a little different from the real . The measurement allowed error is +/- 1-3cm.