You probably have RFI/EMI or ground loop issue in your setup. Since the cable is not shielded, it is very like to act as "antenna" which applifies the interference
Either fix the problem or dump the cable
Either fix the problem or dump the cable
Hum from Silversmith interconnect
Just purchased used Silversmith interconnect cables to connect my Pass Labs pre-amp to my Art Audio amplfier. One of the cables is creating a loud hum and the other is fine. When using it between other components there is no hum. All my components including my powered speakers are connected to a BPT 3.5 power conditioner which is connected to its own 20 amp line. Any suggestions?