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About b0dhi

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  1. Yes, I'm aware of that, but that's only a concern for measurement of absolute phase. For comparing different phase responses between DACs (or speakers or anything else), so long as certain conditions are satisfied it's irrelevant.
  2. For a while now I've been grappling with a strange issue where my two external DACs produce phase distortion or don't, depending on which input is used. Although both DACs are exhibiting the same phenomenon, the issue is different for each: for the Qutest, the USB input produces a big phase shift similar to a 24dB/oct crossover but the optical input is phase linear. For the Audiolab M-DAC, the USB input is the one that's phase linear while both the optical and coax inputs have a phase shift in the top octave (quite different to the distortion the Qutest exhibits but still significant and defin
  3. Caveat emptor - of the many tracks from there I've analysed, HDTracks has consistently poor quality releases that would not be considered "HD" by any imaginable standard. There's usually little to no content above 20khz, mastering is all over the map and regularly strays into "did anyone even listen to this before they released it?" territory, and occasionally tracks have distortion too.
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