As the name implies, the Carnival Silver Screen is a screened cable, something unusual among loudspeaker wires. The usual thinking is that at the high voltage and current levels associated with loudspeaker connections, a few microvolts of hum or other interference is just not an issue, but radio-frequency (RF) interference can still be conducted back into the amplifier on unscreened cable and, once there, can get into places where it may produce audible effects.



Link: Techradar