diymore ZK-AS21P 300W*2+600W 5.1 Bluetooth Digital Power Amplifier Board Module 2.1 Channel TPA3255*2 High and Low Tone Subwoofer Audio Decoder Board Mechanical Switch DC18-50V 12A

diymore. Product parameters: Working voltage range: 18-50VDC, limit 53V. It is recommended to use a DC power supply with a voltage of 36-48V and a current of 12A or above. Maximum power: Left or right channel-300W@50V, 4,160W@50V8 subwoofer 600W@50V2, 300W@50V, 4,160W@50V, 8, In short, the higher the voltage, the smaller the resistance, and the greater the output power. Bluetooth chip: Jerry 5.1, transmission distance 15 meters. Input method: Bluetooth+AUX+USB drive/sound card. Number of channels: 2.1, left and right channels+subwoofer. Power amplifier chip: two original TPA3255. Protection mechanism: Input undervoltage, overheating, overcurrent, short circuit protection. No input anti reverse protection, positive and negative poles cannot be reversed. Product selling points: 1. High current, low magnetic loss, small parasitic capacitance, low heat generation, use of oxygen free copper wire to improve sound quality, The magnetic shielding mechanism has strong anti electromagnetic inter