Specifications:Name:12V 300W Audio Amplifier BoardVoltage:DC 12VPower:300WP eak power:800WCurrent:80AImpedance: 4ΩTHD:<0.1%Frequency Response: 20Hz~20KHzSize:235mmx155mm
 Feature:-High efficiency, wide frequency, voltage.
 -Strong heat dissipation power drawing technology is compact.
 -12V 300W car audio amplifier board gives you a wonderful in-car entertainment.
 -With standard socket AUX input, can be connected to computer, mobile phone or CD and other audio.
 -Full frequency, bass selection, low frequency (BASS) state FFLTER can adjust the low frequency depth.
 -You can connect the high-end woofer and push two 8-10-inch bass full-range speakers, plus 2 high-telephone speakers.

Note:1:Connected to the 12V power supply must be connected to the positive electrode of a battery, can not in the car just to find a positive line connected, or burned out car circuit.
 2:GND interface must be connected with the cathode.
 3:Connect the power cord of the three interface in the middle of the interface is the control line rem, began testing machine take 12V test. And then find the top of the CD ACC control line interface wiring, and be careful not to touch the ground in the car, the exposed placecarefully with electrical tape wrapped package is solid, otherwise it will cause a short circuit burned out the machine.
 Package included:1 x Car Audio Amplifier Board