从电子管到晶体管以至集成电路,勿庸置疑是科技的进步。然而,当我们回过头看一看以听觉艺术为目的的音响领域,却有一个奇特现象:似乎早应退出历史舞台的电子管功放竟没有被淘汰,在电子技术突飞猛进的今天又重新扮起重要角色。象越古韵就越有价值的小提琴一样,谁若是拥有一部300B电子管功放,就象收藏家珍藏着一把斯特 From tubes to transistors and even integrated circuits, there is no doubt that advances in technology. However, when we look back to the field of acoustics for the purpose of audio-visual arts, there is a peculiar phenomenon: it seems that the tube amplifier that should be withdrawn from the stage of history has not been eliminated, and plays an important role in the rapid development of electronic technology today . As the more ancient the more valuable violin, who has a 300B tube amp, just as collectors treasure a Stewart