随着人们生活水平的提高,高保真音响系统已逐渐进入家庭。在这其中,作为主要高保真节目源之一的唱片,其优越的电声性能也已日益得到了人们的承认。唱片是人们最早用来记录声音信息的载体,自1877年爱迪生发明留声机至今,100多年来,唱片的电声性能已达到了很高的水准。与此比较,现今市场极为流行的盒式节目磁 As people’s living standards improve, high-fidelity audio system has gradually entered the home. Among them, the record as one of the major high fidelity sources, its superior electro-acoustic performance has also been increasingly recognized by the people. Records are the earliest people to record voice information carrier, since 1877 Edison invented the gramophone so far, more than 100 years, the electro-acoustic performance of the record has reached a high level. In contrast, the market is extremely popular magnetic cassettes