Product name: Audio amplifier board

Board size: 55 x 83 x 29mm

Operating voltage range: DC9-25V (current 2-3A or more, if the power is larger, it is recommended to be 19-24V4A or more)

Frequency response range: Input: 20Hz-20KHz

Output: 20Hz-180Hz

Audio input sensitivity: 500mV

Subwoofer impedance: 2-8 ohm

1. This is a bass power amplifier board with preamplifier, bass crossover, and bass volume potentiometer control. It is for the pros who already have 2.0 amplifiers, and the DIY combination is used for 2.1 amplifiers.

2. It is based on TI"s TPA3116D2 high performance digital power amplifier chip.

3. Use DC power supply 12-24V power supply, wide working voltage, power-saving design, efficiency up to 90%. Supports up to 100W (Bass) bass channel output.

4. You can use a good performance switching power adapter, notebook switching power supply, or rectified and filtered transformer power supply, you can also use a rechargeable source, or car power supply, etc...

5. Boot anti-shock protection design, there is no P0P p0pping at boot, please pay attention to the high requirements.

6. The board is a finished board that has been soldered and tested. Connect the speaker according to the picture, and input it with audio input and power.