1Choose 6?10GA audio power wire for wire material selection, which is durable and has better performance. 2Can connect to 4speakers,meets the need of most users, and bring a better experience. 3Connect the positive and negative poles of the power supply to prevent the power amplifier from burning out. 4Made of high quality iron and aluminum alloy, hard, wear?resistant, suitable for long time use. 5Exquisite production, good performance, excellent workmanship, better meet your needs.1 x CarStereoAudioAmplifier 1 x Safty Plate4 x Screw1 x InstructionCondition: 100% New_x000D_Item Type: Car Stereo Audio Amplifier_x000D_Material: Iron + Aluminiu Alloy_x000D_Color: As the Picture Shown_x000D_Maximum Power (2ohm) 1450W x 4=5800W _x000D_Maximum Power (4ohm 725W x 4=2900W_x000D_RMS Power (2ohm) 700W x 4=2800W_x000D_RMS Power (4ohm)= 300W x 4=1200W _x000D_THD: 0.02%_x000D_Sensitivity: 90dB_x000D_Frequency Response:20Hz-20KHz_x000D_Operating Voltage: 12V_x000D_Application: Universal for Car 1Choose 6?10GA audio power wire for wire material selection, which is durable and has better performance. 2Can connect to 4speakers,meets the need of most users, and bring a better experience. 3Connect the positive and negative poles of the power supply to prevent the power amplifier from burning out. 4Made of high quality iron and aluminum alloy, hard, wear?resistant, suitable for long time use. 5Exquisite production, good performance, excellent workmanship, better meet your needs.1 x CarStereoAudioAmplifier 1 x Safty Plate4 x Screw1 x Instruction