A sound source is the device used to play a type of medium whether its analogue or digital. Simply put its where you get your music from. The main types of sound sources used today are turntables, CD players, digital streaming devices and Blu-ray players. Like anything each one of these formats comes with varying levels of quality and usability with something to suit every listener. Depending on your tastes and listening habits you may have one sound source or you may have many