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In Reply to: RE: Those 9 things... posted by Archimago on July 02, 2017 at 09:43:07
There is some interesting descriptions by the designer of how the dac works and many measurements underpinning the claims.
I suspect that the dac is limited by the XMOS board that Chinese manufacturers use, without including the Theyscon CPL's full features (ie latency adjustment), and by the lesser clocks (X)s) that some of them use in converting the usb stream into good I2S streams. Hence some of the 9 'things'.
I'd like to listen to one, if only because the compensation scheme must add additional processing in the dac's operation and because of the innovative approach toward R2R operation.
Maybe there is a difference, maybe there isn't. I would just like to see if someone can demonstrate objectively what improvement *any* of these USB optimizations will have on a good modern asynchronous USB DAC.
Does it affect XMOS microcontrollers? How about the inexpensive Microchip devices? CMedia?
There are so many "possible" effects but as yet, there is no fact-based objective demonstration at all that this whole "industry" of USB add-ons make a whiff of difference... Much less a reviewer chaining 9 of them together somehow should be used with the product; all the while potentially making the USB transmission *worse* just as much as they could improve something.
Archimago's Musings : A 'more objective' audiophile blog.
as is in the case of community noise and noise and vibration rating and classification. There is no rigid objective means of determination, just guidelines and empirical data.
Objective measurements in audio are useful only for screening purposes and gear that measures well may not sound good. Those who cannot discern differences are just groups of individuals who cannot detect subtle or very subtle changes in temporal and special renditions of musical performances.
One so called 'objective' and well known criterion is the Fletcher and Munson loudness contours which were obtained by playing sine waves at different frequencies to audiences. Common sense tells us that no one would willingly listen to sine waves in musical reproduction.
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