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发表于 2012-4-10 00:03
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即使是线材厂,也还是拿技术来忽悠,这是MIT在介绍它的CVT Terminator 2线时说的:
According to MIT, a cable should be just as efficient at 80Hz as it is at 15kHz. The problem is that the founder and head engineer of MIT Cables, Bruce Brisson, found that no cable is fully capable of maintaining its linearity while transferring a full range signal from point A to point B. The reason is because every conductor inside of a cable has a point along its bandwidth in which it is weak (or inefficient). So, while a conductor may be great at transferring a signal within a certain frequency range(say for example, between 2 and 12kHz), it’s the rest of the frequency band that it’s not so great at covering that is the problem. The cables inability to transfer the entire signal without creating ‘holes’ along the way results in performance robbing energy loss. This energy loss translates into limited bandwidth, which as Bruce discovered, has very audible consequences. One of the greatest challenges Bruce and his team at MIT faced was figuring out how to develop a cable that could maintain its integrity while sending a full range signal from point A to point B.
大意是说音响连线至少需要在80Hz至15KHz范围内有效,而每一种导体只在某一个频带范围内传导效果最好(例如2至12KHz),超出此范围传导性会变差。而MIT的工程师则致力于研发能在整个音频范围内都保持良好传导效果的导体。
有脑子的人都看得出这是一派胡言,即使是普通铜导线,在整个音频范围内的传导性能几乎都是一致的,不一致性远小于放大器频响曲线的不平坦度,更小于音箱频响曲线的不平坦度。这也就是为什么即使是精密音频测试仪器,也不过是采用铜导体来做测试探头。
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