ZK-TB21 TPA3116D2 High & Low Pitch Adjustment 2.1 Channel Bluetooth Full Digital Power Amplifier Module

1. Power supply current: 5A2. Power supply voltage: 12-24V3. Bluetooth version: 5.0 (no occlusion, 10 meters)4. Input sensitivity: 500mV5. Input method: AUX+Bluetooth6. Number of channels: 2.17. Channel power amplifier chip: TPA3116D2 (with AM interference suppression function)8. Adaptive power supply: DC12-24V/5A or more (the higher the voltage, the greater the output power)9. Adapted speaker: 20~100W.4~8 ohms10. Output power: left and right channels 50W/subwoofer 100W11. Protection mechanism: overvoltage, undervoltage, overheating, DC detection, short circuit protection12. Product size: 120mmx100mmx20mm13. Product weight: about 195 grams14. Tips: Only when the audio input is sufficient and the power supply voltage/current is sufficient, there will be sufficient output power! ! ! The higher the power supply voltage, the greater the output power, and the smaller the speaker impedance, the greater the output power! ! ! Please ensure that the power of the adapted power supply is greater than the actual working power of the power amplifier! ! !15. A screwdriver is provided, and the shell needs to be assembled by yourself