"In hifi I would say black is a signal with no noise, hiss, colouration. The cables would accurately present the music from the source to the speakers."
Cables might affect the coloration part but not sure any decent properly functioning cable would affect hiss and not even noise again if properly functioning and not defective in some way. A defective cable and/or improperly connected cable can and will produce noise, often clearly audible, though sometimes perhaps quite subtle and not clearly discerned except when absent otherwise.
Cables might affect the coloration part but not sure any decent properly functioning cable would affect hiss and not even noise again if properly functioning and not defective in some way. A defective cable and/or improperly connected cable can and will produce noise, often clearly audible, though sometimes perhaps quite subtle and not clearly discerned except when absent otherwise.