1. Press the mode button to choose the mode before use.
Assistance/Line: Press the word "AUX / Screen will show "Lines"
Description:
The subwoofer simply transmits the base, and the frequency is less than 80Hz, intermediate and high frequencies will attenuate. Base is only bass, medium and high frequencies are very small.
The digital amplifier can be used as a standard mono power amplifier board or subwoofer power amplifier board and has an opamp NE5532 buffer matching with preamps.
Using the latest TPA3116D2 high performance power amplifier chip as a core, the working voltage of 12-25V DC single power supply.
100W mono subwoofer output, efficiency is 90%. Switching power, laptop switching power, battery or car power etc.
The circuit board power supply is very important. The higher the voltage the higher the current and the output power is better.
Specifications:
Power Supply: DC 12-25V
Output Power: 100 W (subwoofer)
Color: Black.
Power Amplifier Size: 68.5x33x90mm(Without Knob and Rear Terminal)
Package includes the following:
1 x TPA3116 audio amplifier (not including power supply)
Note:
For normal operation, please connect the external power port and digital power amplifier first.
Then connect the 220V power cord of the external power supply to the power socket. The wrong way is to open the external power supply interface first, then enter the external power output interface into the digital power amplifier. The digital power amplifier has a filter capacitor, so the capacitor will be charged and discharged and a low voltage small spark within 0.1 seconds after contact. Low pressure is not effective, but is a bad habit.