RE: High frequency jitter in an over $400 DAC

Posted by dave789 (A) on May 17, 2015 at 01:53:51

In Reply to: RE: High frequency jitter in an over $400 DAC posted by Todd Krieger on May 17, 2015 at 01:21:54:

I think Styleaudio Sapphire does not upsample. 24/192 is just the DAC's capability in the DAC's catalogue. The 8X oversampling is done inside the DAC chip.

It uses Cirrus Logic CS8416 (no ASRC function there) digital interface chip. It is supposed to attenuate some high frequency jitter.

Audioengine D1, which was one of the DACs for comparison, has the same CS8416.

I thought of the possibility is that Styleaudio Sapphire's PLL is optimised for good quality source, while Audioengine D1 and MuxLab 5.1ch to 2ch DAC are optimised for both good and poor quality sources. But this should be very wrong. Styleaudio Sapphire is marketed for computer audiophiles. The product was designed with jittery computers in mind.

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Follow Ups Full Thread

Topic - High frequency jitter in an over $400 DAC - dave789 12:01:34 05/16/15 (21)

RE: High frequency jitter in an over $400 DAC - Thorsten 05:20:51 05/18/15 (0)

Sapphire LE higher noise floor only at 44.1kHz - dave789 15:59:03 05/17/15 (0)

RE: High frequency jitter in an over $400 DAC - Dave_K 07:55:10 05/17/15 (6)

at different FFT, the sidebands are fluctuating - dave789 15:05:09 05/17/15 (0)

steady 34kHz tone - dave789 14:35:52 05/17/15 (3)

RE: steady 34kHz tone - Todd Krieger 20:41:42 05/17/15 (2)

RE: steady 34kHz tone - dave789 21:38:40 05/17/15 (1)

RE: steady 34kHz tone - Todd Krieger 01:06:16 05/20/15 (0)

RE: High frequency jitter in an over $400 DAC - dave789 10:05:42 05/17/15 (0)

RE: High frequency jitter in an over $400 DAC - Todd Krieger 01:21:54 05/17/15 (1)

RE: High frequency jitter in an over $400 DAC - dave789 01:53:51 05/17/15 (0)

RE: High frequency jitter in an over $400 DAC - Awe-d-o-file 21:30:33 05/16/15 (1)

RE: High frequency jitter in an over $400 DAC - dave789 00:15:03 05/17/15 (0)

MuxLab 500081 LE via optical from mac mini 4k - 16k - dave789 18:21:04 05/16/15 (0)

Styleaudio Sapphire LE via optical from mac mini 4k - 16k - dave789 18:18:01 05/16/15 (0)

MuxLab 500081 LE via optical from mac mini RTA - dave789 14:25:49 05/16/15 (0)

Styleaudio Sapphire LE via optical from mac mini RTA - dave789 14:23:41 05/16/15 (0)

Audioengine D1 via optical from mac mini - dave789 13:26:13 05/16/15 (0)

MuxLab 500081 LE via optical from mac mini - dave789 12:06:16 05/16/15 (0)

From mac mini's analogue output - dave789 12:04:46 05/16/15 (0)

Styleaudio Sapphire LE via optical from mac mini - dave789 12:03:16 05/16/15 (0)

Follow Ups

RE: High frequency jitter in an over $400 DAC - dave789 01:53:51 05/17/15 (0)

RE: High frequency jitter in an over $400 DAC

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