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Is a femto clock important if you aren't using asynch USB?

I am considering buying a used Wyred 4 Sound DAC2 DSD se for streaming from my Bluesound Node 2i, and the seller told me that this DAC2 se is one of the early ones that does NOT have a femto clock.  My Bluesound does not have USB output, so I won't be using the USB input on the DAC2.  My understanding is that the femto clock is mainly useful to sync up the digital stream from a computer; is it likely to make much difference if my source is a streamer and the input is SPDIF?

128x128cheeg

Showing 1 response by erik_squires

erik_squires
15,930 posts
 

The better the internal clock, the lower the DAC's jitter rejection can work, to a point.  If upstream jitter is extreme enough no internal clock will fix it.

I agree though that chasing a 10 year old DAC seems imprudent. That was just after the cut-off range, when I remember Redbook playback getting much better.

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