音响一般由音源、功放、音箱三部分组成。据测算，功放与音箱的失真度占整个音响系统的80％以上，因此功放和音箱的素质显得尤为重要。

在著名的法俄1812大战中，俄罗斯军重挫了当年号称坚无不嶊，往无不胜的法兰西军，为骄撗不可一世的拿破伦王朝撞响了第一鸣丧钟。拿破仑所统率的 75万法兰西大军中，38万法军将士是横着离开或是长眠于俄罗斯的冻土，10万勇士被生擒。拿破仑在1812战后留下此言：「如果法兰西拥有象俄罗斯那样 坚强和周密配合的军队，这个世界再大也是属于我拿破仑的」。

Vinyl. Some say it’s had it’s heyday, but we’re seeing an ever increasing surge in vinyl sales which suggests quite the opposite. And it’s not just us – record companies are pushing out more and more new albums on this medium. You can almost guarantee that a new album with any major or medium-sized record label will also be available on LP. Why, you ask? Well, for the purists! You cannot beat the sound of vinyl.