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放大器是视听系统中不可或缺的环节,当前放大器根据所用的元器件主要分为电子管放大器(俗称“胆机”,以下均称“胆机”)和晶体管放大器(俗称“石机”)两种。电子管(俗称“胆”)自上个世纪初发明以来,胆机在三四十年代羽翼渐丰,五十年代出现的麦景图(McIntosh)C22&MC275、马兰士(Marantz)M7&M9、Quad等传世佳作标志其达到了顶峰。随着晶体管在六十年代初的迅速崛起,以电子管为主要元件的产品日趋衰落。七十年代至八十年代中期几乎是晶体管放大器的天下,并出现了很多如KRELL、MarkLevinson、JeffRowland、Goldmund等有名厂商。
The amplifier is an indispensable part of the audio-visual system. The current amplifier is mainly divided into two types: a tube amplifier (commonly referred to as a “tube amplifier” and a “tube amplifier” hereinafter) and a transistor amplifier . Since its invention in the early 20th century, the tube has grown furious in the 1940s and 1940s. The world-famous McIntosh C22 & MC275, Marantz M7 & M9, and Quad Marked it reached its peak. With the rapid rise of transistors in the early 1960s, the use of tubes as the main component of the product is declining. From the 1970s to the mid-1980s, it was almost a transistor amplifier, and many well-known manufacturers such as KRELL, Mark Levinson, Jeff Rowland and Goldmund emerged.