Product name: 600W pure subwoofer amplifier board Product model: -6001 Adapted power supply: The working voltage range is 18-50VDC. It is recommended to use a DC power supply with a voltage of 36-48V and a current of 10A or above. AC power not supported! Maximum power: 300W@48V , 4 , 600W@48V 2, the higher the voltage, the smaller the horn resistance, and the greater the output power Input : Stereoscopic input, XH2.54-3P interface, comes with XH2.54-3P dual shielded wire as a gift Number of channels: 1 Power amplifier chip: TPA3255 Protection mechanism: Input undervoltage, overheating, overcurrent, short circuit protection. No input anti reverse connection protection, positive and negative poles cannot be reversed! Product size: 144x65x37mm Note: 1. Power supply and audio cable are not included in the delivery. 2. The input does not support AC power, please use DC power! 3. The input power cannot be reversed or exceed 51V, otherwise it will burn out! Colour:Black Material:Metal + Plastic type:A:Potentiometer external Package Contents: 1 x 600W pure subwoofer amplifier board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.