We offer discount for large quantity. Welcome to contact with us!TPA3116 Subwoofer Amplifier Board 2.1 Channel High Power Bluetooth o Amplifiers DC12V-24V 2X50W+100W AmplificadorThis is a support Bluetooth 5.0 o 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, o input or connect the Bluetooth o device and connected to the power can be used.colour: as shownMaterial: Acrylic + Plasticsize: 116x112x54mmPackage Contents:1 x TPA3116 Subwoofer Amplifier Board1 x Case Accessories1 x Power Configurator (19V 4.74A)1 x o cable1 x set of screwsOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.