This is an information advisory to alert anyone experiencing a similar issue. It is not a defect with the Deco PX50 itself.

I installed a Deco PX50 Node next to an Intel NUC8 Windows 11 pc sharing the same power socket. I experienced random crackling audio noise from the Intel NUC8 speakers. My initial thought was the problem was a faulty audio cable or audio driver problem with the NUC8. After further investigation (checking audio drivers and cables) I discovered that the interference was caused by the Deco PX50 node. I assume the interference maybe something to do with the Deco Powerline backhaul signal interacting with the Intel NUC8 power supply unit.

When I moved the Deco PX50 node to a different power socket away from the Intel NUC8 the interference ceased.