Remember that the input on your computer is a mic level input and your stereo outputs line level. You can buy an audio interface for about $50, that is USB.
That's not completely true. Most newer Macs including the iMac are line level, not mic level and require a USB adapter for mic input. So, it all depends on the Mac being used.Remember that the input on your computer is a mic level input and your stereo outputs line level. You can buy an audio interface for about $50, that is USB.