The evolution of Hi-Fi is also quite interesting, even though the quality of the sound has not changed over the past 50 years. Captain Joe will prove you that the audio quality in the early sixties, was better than what it is nowadays! Providing we compare a current system with a CD player with a good Hi-Fi system of the early sixties, comprising a turntable playing a new unscratched vinyl lp or an FM tuner playing an American station. Just consider that most radio stations nowadays play mp3s !