The TSA8800B is a 2.1-channel Bluetooth DSP amplifier board, featuring 2x100W channels and a 200W subwoofer channel powered by a TPA3221 Class-D architecture. It supports Apt-X and TWS for high-quality wireless streaming, while an ADAU1701 DSP chip allows users to customize audio tones for each channel. The board includes I/O pins for additional DSP programming, potentiometer ports for main, bass, mid, and treble control, and external button inputs for volume and playback. The DSP prioritizes Bluetooth over RCA inputs by default, and custom programs can be uploaded via USBi JTAG.