Enrico,
"Interconnects" fall into two major categories. The categories are "phono cables" and "interconnects." Everyone I know of will specify a cable as a phono cable before hand. Obviously Phono cables have a specific purpose of connecting a turntable to a "phono" preamp. Yes cables connect CD players and other units to the preamp and to the amps. They are either labeled single ended, or more commonly named RCA Ends. Or they are labled Balanced, with XLR Ends. The other cable is "Speaker Cables," which connect amps to speakers.
"Interconnects" fall into two major categories. The categories are "phono cables" and "interconnects." Everyone I know of will specify a cable as a phono cable before hand. Obviously Phono cables have a specific purpose of connecting a turntable to a "phono" preamp. Yes cables connect CD players and other units to the preamp and to the amps. They are either labeled single ended, or more commonly named RCA Ends. Or they are labled Balanced, with XLR Ends. The other cable is "Speaker Cables," which connect amps to speakers.