The new TPA31XX series subwoofer high-fidelity 2.1 power amplifier board, onboard Bluetooth 5.0 chip, supports the installation of AUX (audio input) and USB (playing U disk and card reader), and can also be installed with IR (remote control function) and AD_KEY (button control)!
USB can support all lossless format audio file playback (WAV FLAC APE WMA MP3, etc.) a variety of audio formats!
TPA3156D2 power amplifier board output power: 2*70W+140W4Ω, power supply is 24V10A. (Amplification gain is 36dB for subwoofer + 32dB for left and right channels)
TPA3116D2 power amplifier board output power: 2*50W+100W4Ω, power supply is 24V8A. (Amplification gain is 36dB for subwoofer + 32dB for left and right channels)
TPA3118D2 power amplifier board output power: 2*30W+60W8Ω, power supply is 24V5A. (Amplification gain is 36dB for subwoofer + 32dB for left and right channels)
1. Wide voltage power supply: 8V-24V DC power supply (cannot connect to transformer)
2. Different voltage outputs different power: voltage X current = power (the conversion rate of this board is 90%)
3. The digital power amplifier voltage activation output current parameters are as follows:
8 V power supply, maximum 3A current = 24W (total power) 90%
12V power supply maximum 5A current = 60W (total power) 90%
18V power supply maximum 6A current = 108W (total power) 90%
24V power supply maximum 8A current = 192W (total power) 90%
That is to say, in the state of 8V power supply, the maximum current is 2A, that is, 3X8=24W and so on!
When the AUX audio input and USB cable are used to shoot the bare board, please contact customer service if you need it (the bare board is a pure Bluetooth power amplifier board. Buyers who solder AUX and USB after the test are not guaranteed!! !)
1. Power input, connect to DC8-24V DC power supply. 3A more (please use 3c certified switching power supply to connect according to the positive and negative poles)
2. Connect the subwoofer, the amplification gain of some circuits is 36dB, please connect the 6. 5-8 inch subwoofer
3. Left channel output, connect to 3-6. 5 inch high and low frequency speakers
4. Right channel output, connect to 3-6. 5 inch high and low frequency speakers
1Pcs Bluetooth 5.0 Subwoofer Power Amplifier