Hi Bruce,
The revisions weren't specifically indicated, and it appeared that Nyal was just relaying information he received from DEQX which in turn didn't go into a lot of detail. But it sounded like the revisions were most likely just bug fixes specific to the HDP-5. I suspect they had no applicability to the more mature models.
Best,
-- Al
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I can't imagine debugging those new features in the HDP-5 can be much fun. |
UPDATE?:
24/192?
Digital output to their own digital input Class D amps? |
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Unsound, as far as I am aware DEQX does not make power amps, class D or otherwise. And I've seen no indications that HDMI inputs are or will be incorporated in any of their products. Regarding 24/192, in JA's measurements writeup that was presented in Stereophile in conjunction with Kal's review of the PreMate it was stated that: The USB input accepted 24-bit data with sample rates ranging from 44.1 to 192kHz, including 88.2 and 176.4kHz. The TosLink input accepted data with sample rates up to 96kHz, and the AES/EBU input sample rates up to 192kHz. However, the DEQX Calibration app (v.2.93), running on a Windows XP machine, indicated that 192kHz data were downsampled to 96kHz, and 176.4 down to 88.2.... Though the PreMate will accept 176.4 and 192kHz datastreams, it appears that it downsamples them to half those rates before the data are presented to the DSP section, then finally the DAC. So no, there is no true bypass.... Running powerful DSP at 4Fs sample rates is very consuming of resources, so this compromise is not uncommon. It is likely that the benefits of the DSP correction outweigh the potential drop in sound quality due to the downsampling. Best regards, -- Al |
