DC 12V 35W+35W 2.0 Dual-Channel Stereo Audio Power Amplifier, TDA7377

brand: SainSmart SKU: 101-60-248

This is TDA7377 2x35W Digital Audio Amplifier, fits for bookshelf speaker, floor speaker.

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  • Dimension: 60×56×50
  • Output power: 35W+35W
  • Power supply: DC 9-15V/50-100W
  • Channel type: 2.0 stereo
  • Response frequency: 20Hz-20KHz
  • Matching speakers: 4-8 20-120W 3''-10'' bookshelf speaker, floor speaker


1. Connect to speakers
Connect the two wires of the speakers to the audio output port of the power amplifier, the left channel speaker is connected to the LOUT port of the amplifier and the right channel speaker is connected to the ROUT port, the positive connects to "+",the negative connects to "-".

2. Connect to sound source
Use an audio cable with a end of 3.5mm stereo headphone plug and plug in 3.5 stereo headphone jack of the amplifier.

The other end of the audio cable is connected to the audio source (such as computers, mobile phones, MP3, DVD).

3. Connecting to power supply
1)Connect to the adapter of power supply
Use the power supply which the output is above DC12V3A.
Connect the output cable of the adapter to the 12V port of the power amplifier board.

The positive connects to "+" of the port while the negative connects to "-".

2)Connect voltage converter
Use the voltage converter which the output is above AC12V3A.
Connect the two output cables of the converter to the 12V port of the power amplifier board.

Because the output of the converter is alternating current, it is not positive or negative.

4. Play music
Plug in the power, the blue power indicator will light up which means that the power amplifier board start working.
You can adjust the volume knob according to their own preferences.

  • 1× SainSmart Micro TDA7377 DC12V Digital Audio Power Amplifier