New #tpa3116d2 2.1 Board, Economy and Hi Fi, Demo & Sound Test.
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Feature:

This is a support Bluetooth 5.0 audio receiver Updated, with a pre-amplifier, Bass crossover Processing. With bass, left and right channel volume adjustment, treble adjustment, the total volume potentiometer control 2.1 amplifier board.

Use DC power supply: 12-24V Power Supply, Maximum support 50W (left channel) +50 W (right channel) +100 W (bass channel) three-channel output.

Is the use of the United States TI company TPA3116D2 high-performance digital amplifier chip as the core, a parallel bridge subwoofer output, do a left and right channel output.

Wide operating voltage, power-saving design, efficiency up to 90%. You can use good performance switching power supply, laptop switching power supply, you can also use the charging bottle, or car power supply and so on.

Board is a good test of the finished product board is welded, according to figure connected to a good speaker, audio input or connect the Bluetooth audio device and connected to the power can be used

Tips:

If you need Power Supply,Please Choose this: 24V 6A Amplifier Power Supply, and if you need subwoofer speaker ,Please choose: 4OHM Subwoofer

Parameter

Size: 101 * 100 * 25mm / 3.98 * 3.94 * 0.98 inch

Operating voltage range: DC 11-25V (current 3-4A, or 19-24V/4-5A ,If the power requirements high, above20-24V/8-9A )

Bluetooth receiving distance: 8m(26ft)

Speaker impedance: Left/Right Channel: 4-8Ω , BASS Channel: 4-8Ω