150W Car Subwoofe Hi-Fi Bass Power Stereo Amplifier Board 6-12inch Digital AMP

Feature:
HIFI power bass amplifier.
Enjoy the top music when driving all the times.
Enjoy a wonderful journey.
Fit for all 12V vehicle.

Specification:
Voltage: 12V
Max Power: 180W
Actual Power: 150W
Impedance: 4 ??
Sensitivity: 75-90DB
Distortion: 0.01% (human ears almost can not hear)
Speakers: 6 inch/ 8 inch/ 10 inch/ 12 inch
Treble: Unlimited
Dimensions: 16x8.2x15cm

Power Connection:
1. Car has a CD player : GND then negative vehicle power ; 12V 12V power supply connected to the car 's positive;
REM CD player connected to the control line (so the CD player can directly control the subwoofer amplifier on and off )
2. Car no CD player : GND connected to the negative power of the car , + 12V and REM connected together in positive
12V car power ( + 12V can also be an indirect one with REM switch control amplifier switching function ) ;
3. Directly with the battery (battery) connection : GND connect the battery negative , + 12V and 12V REM then the positive
battery simultaneously .