英国Pro—bel公司在播出系统方面一直处于领先地位,全新推出的TX420数字播控切换台,结合和扩展了TX320的特点,提供更加杰出的操作装置和无与伦比的功能。 TX420除了具有TX320的功能和特点以外,TX420在视频方面拥有20路节目和4路辅助输入,4个下游键(其中两个可选件)和键填充。一个控制台可控制多达6个通道,一个 British Pro-bel company has been in a leading position in the broadcast system, the new TX420 digital broadcast switcher, combined with and extended the TX320 features, providing more outstanding operating device and unparalleled features. In addition to the TX320’s features and functionality, the TX420 features 20 channels of programming and 4 auxiliary inputs for video, four downstream keys (two of which are optional), and a key pad. A console can control up to 6 channels, one