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RE: Schiit Yggdrasil - a real game changer ?

I see nothing about the Yggdrasil that might make it a "real game changer". The AD5791 D/A chip doesn't feature THD (an A.C. specification) commensurate with it's native 20-bit conversion unit. As I recall, it's THD is around a16-bit level. Which, while probably low enough to not be perceptable, does not qualify as a game changing feature of the chip. The AD5791 features a wide bandwidth low noise, and good D.C. specifications such as integral linearity and monotonicity, which are important for many non-audio applications. THD is probably the main spec. which is most important for an audio DAC.

The long out of production PCM63 and the AD1862 were also 20-bit D/A chips, but those were optimized for audio use, so, merely utilizing a native 20-bit conversion architecture could not make this a game changer. In addition, the designer of the Yggdrasil, Mike Moffat, has stated that he needed to take special effort to suppress the glitch energy of the AD5791. In short, should the Yggdrasil prove uniquely musical sounding, it wouldn't seem to be due to any openly revealed or readily visible technical element. As always, thorough auditioning before purchase would be in order.
_
Ken Newton


Edits: 03/09/15 03/09/15 03/09/15
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