随着互联网的不断发展,影音存储媒介的发展形式从传统的光盘慢慢地转向硬盘。与此同时,网上的音乐资源数量正在日益刷新,这让新世代的音响器材不断地与电脑相结合才能适应市场的变化。其中,CAS正是这个环境下所发展而来的一个新名词。CAS,即Computer Audio System,是一种以电脑作为数字音源的新兴音响系统,是现时两声道音响玩家所关注的焦点。CAS最大优势是利用了电脑强大兼容播放能力来播放高质量的音乐文档,以及能借助庞大的网络资源来获取数量更庞大的音乐。在CAS信号源当中,DAC是影响音质的最关键器材。这种能配合电脑使用的DAC具备两个最主要的特色。第一,具备USB或Fireware界面,用于对应PC或Mac设备。第二:能支持高规格数字音频文档(24/96、24/1 92、24/384等等)的数模转换能力,实现高质量的声音回放能力。这类产品目前在市面上十分常见,但品质方面却是良莠不齐,对于玩家来说要选择一款合适的产品往往令他们感觉棘手。因此,我们本期就集合了6款DAC产品作一次集体试听。这些产品当中包含了来自专业音频名厂以及著名Hi-Fi音响厂商的作品,它们都有其各自的声音风格和功能。我们希望通过本次的专题能对玩家们起到一定的指导性作用。 As the Internet continues to evolve, the evolution of AV storage media has slowly shifted from traditional CDs to hard disks. At the same time, the number of online music resources is refreshing, allowing new generations of audio equipment to be continually combined with computers to adapt to market changes. Among them, CAS is a new term developed under this environment. CAS, the Computer Audio System, is a new audio system that uses a computer as a digital audio source and is the focus of current two-channel audio players. The biggest advantage of CAS is the use of powerful PC compatible playback capabilities to play high-quality music files and to take advantage of the vast network of resources to obtain a greater number of music. Among the CAS sources, DAC is the most critical device that affects sound quality. This DAC for use with a computer has two main features. First, with a USB or Fireware interface for the PC or Mac device. Second: Digital-to-analog (24/96, 24/1 92, 24/384, etc.) digital to analog conversion capability for high-quality audio playback. Such products are currently very common in the market, but the quality is mixed, for the player to choose a suitable product often make them feel difficult. Therefore, this issue we have assembled a set of 6 DAC products for a collective audition. These products include works by professional audio names and famous Hi-Fi audio manufacturers, each with its own sound style and function. We hope that this topic can play a certain guiding role for players.