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Does removing "interface jitter" help, if my source has jitter?

I'm thinking of getting a Benchmark 3 DAC, and one of the selling features is its UltraLock3™ jitter attenuation system, which Benchmark says "fully isolates the inputs from INTERFACE jitter" (emphasis mine).   If my upstream source has jitter, will this system isolate that from the DAC?  My usual source is a Blusound Vault, and I suspect its jitter control is not as good as the Benchmark's. 
128x128cheeg
djones51
4,947 posts
 
Yes it will. It buffers the signal and uses it's own clock if there is any jitter it's not perceptible. 
erik_squires
16,057 posts
 
Having good jitter reduction and a good clock internally always helps. :)

Best of course is to use asynch USB so the clocks short and long term match up perfectly.

To be honest though, around 2010 or so DAC's jitter reduction seems to have improved remarkably. It's really hard to find a DAC that doesn't have absolutely excellent jitter rejection at any price.
kijanki's avatar
kijanki
4,428 posts
 
Any jitter on S/Pdif will be suppressed.  It doesn't matter what introduced this jitter (CDP or digital cable).  The only jitter that cannot be removed is recorded jitter.  Early digital recordings were sometimes done with poor, jittery A/D clock.  Such jitter cannot be removed and the only way to fix it is to digitize again, if analog tapes are still available.
cheeg's avatar
cheeg OP
244 posts
 
It's unanimous! Almost unheard-of on Agon.  Thank you all for your responses
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