2 x 100W Class D Bluetooth Audio Amplifier Board - TSA7510B(TWS/Apt-X) TSA7800D You don't need to pair

You don't need to pair them each time you turn the amplifier board on

That channel for subwoofer are 100W mono output

(Voice: pairing successful)

TSA1452B works with stereo amplifier board

TSA7802C is a very flexible DSP/DAC/Amplifier combination board

2 x 100W Class D Bluetooth Audio Amplifier Board - TSA7510B(TWS/Apt-X) TSA7800D You don't need to pairTSA7510B is a 2x100W audio amplifier board with a new AudioB plus Bluetooth module that supports Apt X. It has perfect class D architecture(Based on TPA3221) and each channel has 100W power output. Both of channels are capable of outputting nominal power simultaneously and continuously. This board can be powered by any DC12V 30V power supply. It can be used to drive any 2,4 or 8 passive speakers. TSA7510 can also be connected with our TSA1000,TSA1010