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the big difference

that you never mention is that these DACs generate noise, but there is no signal whatsover at these frequencies so that the noise can be removed with no worries. And as you say, it is.

With DSD, the high frequencies by design carry signal as well as noise, where S/N declines dramatically and eventually falls to zero, but somewhere above 50 kHz. Presumably, this high frequency signal is audibly important, otherwise why would it be designed into the system. Therefore, filtering higher frequencies costs information in DSD and is not a good approach.


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