The TinySine TSA7550B mono Class D amplifier module can develop a power of 200W thanks to its TDA7498E chip. It is also equipped with an AudioB Plus module, giving it a Bluetooth reception capacity with support for the aptX transmission codec and TWS technology. We will also note the presence of a fan overhanging the amplification chip. This one is activated only in case of overheating of the card, in order to protect the components. Finally, the real highlight of this TSA7550B is the integration of a DSP chip ADAU1701. This offers the possibility to take advantage of tone and frequency adjustments, as well as to activate a low-pass filter if necessary.