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原帖地址:https://www.audiosciencereview.com/forum/index.php?threads/review-and-measurements-of-intona-usb-isolator-for-audio-dacs.2616/
联动地址:https://www.audiosciencereview.com/forum/index.php?threads/do-usb-audio-cables-make-a-difference.1887/
节选作者结论:
Conclusions
The Internet is full of praise for these USB filters. The imagination works wonders here, equating USB and computers with noise, and assuming anything that filters it must make things sound better. That predisposition makes one perceive improvement even if it is not there.
Noise is easily measured as see above. So people should not assume a device is a true filter without seeing it actually measured as such. Based on this work, and confirmed by previous measurements I have performed, neither the Uptone Regen nor the TotalDAC D1 filter anything. Instead, they add their own noise components. Mind you, the addition while measureable, is not audible so no wonder no one is complaining about it. If you want to dismiss objective data on these productsyou can. But please go into any subjective review assuming that it could also do nothing versus "must be filtering."
It is in this context that I smile when I see the performance of the Intona USB Isolator. Finally a USB filter that actually filters! So congratulations to Intona for building a proper product that reproduces the USB bus cleanly.
Alas, as I have shown with RME ADI-2 DAC, you do not need USB filters. The solution to Modi 2 Uber noise and distortion is to buy a DAC at the same price or lower that doesn't have these issues. Schiit products seem to be sensitive to quality of USB power. Better designed DACs don't have that problem.
百度翻译:
结论
互联网对这些USB过滤器赞不绝口。想象在这里产生了奇迹,把USB和电脑等同于噪音,并假设任何能过滤它的东西都能使事物听起来更好。这种倾向使人即使不存在也能感觉到进步。
噪声很容易测量,如上图所示。所以人们不应该假设一个设备是一个真正的过滤器,而不应该看到它的实际测量结果。基于这项工作,并由我之前的测量结果确认,无论是上一代Regen还是TotalDac D1都不会过滤任何东西。相反,他们添加了自己的噪声成分。请注意,虽然这是可以测量的,但听不见,所以难怪没有人抱怨这一点。如果你想消除这些产品的客观数据,你可以。但是,请进入任何主观审查假设,它也可以做什么与“必须过滤”。
正是在这种情况下,当我看到IntonaUSB隔离器的性能时,我会微笑。最后是一个真正过滤的USB过滤器!因此,祝贺Intona建立了一个合适的产品,可以清晰地复制USB总线。
唉,正如我在RME ADI-2 DAC上所展示的,您不需要USB过滤器。modi 2 uber噪声和失真的解决方案是以相同或更低的价格购买不存在这些问题的DAC。Schit产品似乎对USB电源的质量很敏感。设计得更好的DAC没有这个问题。
以及一些评论节选
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