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In Reply to: RE: USB done right ?- Intona posted by Ryelands on April 09, 2016 at 04:50:05
Hudra Z, which is an usb galvanic isolator, a usb regenerator, and outputs audio formats via 2 low jitter XOs.
The isolator is a TI rather than the Si chip in the Itona. The usb regenerator is a field programmed chip, and the usb to I2S ouput is via the so called Fempto XOs. The claim is that the arrangement avoids the added jitter caused by the use of Si barriers in the isolation chip(s).
The sound still changes if you place a Regen or iPurifier 2 before or after it!
Many factors affecting SQ are involved and there is no 'done right' or 'done wrong' piece of hardware or software as proclaimed by some who just assimilate CA or AA posts without qualification..
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The claim is that the arrangement avoids the added jitter caused by the use of Si barriers in the isolation chip(s).
Reports and reviews elsewhere suggest that the Audiobyte Hydra is excellent but, at over £1,000 c/w PSU, I'd be getting the jitters so bad myself I'd probably not notice how it was doing.
Whatever, my understanding is that the Intona reclocks after the isolating circuit. Would that not, at least in part, address any jitter induced by that circuit?
I don't believe the Itona reclocks
Alan
It does reclock Alan.
Spread spectrum is just a way of redistributing say 8 kHz noise over a wider bandwidth. Generally ain't good thing.
I stand corrected
Thanks
Alan
It does reclock Alan.
I'm not sure Alan needs reclocking.
Whatever, thanks for the link which I remember reading but couldn't find yesterday as my Internet was down.
Superdad is right and I was definitely wrong in suggesting that the Wyred4Sound RUR was not a one-port hub same as the Schiit and UpTone products.
The difference is that Uptone Audio and Schiit are upfront and clear as to what their product is and does whereas I at least found Wyred4Sound's description rather less straightforward. Disingenuous is too strong a word but IMHO unhelpful isn't.
Nor was it clear even on that slightly odd dedicated but "curated" thread on CA - where's soundchekk when we need him?
OK, OK, I should have checked before buying but I don't think it should be necessary for something so basic. Grrrrrrr.
The bus powered feature isn't a good thing anyway but the price is just not right for a usb port device when compared to other incarnations.
By now you have totted up enough cash to get something like a Hydra Z which isolates, relocks and has cleaned up bus power.
The bus powered feature isn't a good thing anyway but the price is just not right for a usb port device when compared to other incarnations.
I'm not sure which device you're referring to and don't follow your argument. The "one-port hub" USBizmos are not bus powered; the Intona is but, at least in my setup, works very well in spite. As noted above, I had to go to a deal of trouble to improve on the default and then not by much.
. . . you have totted up enough cash to get something like a Hydra Z which isolates, relocks and has cleaned up bus power.
Not sure that's true. I've still got a way to go cost-wise but have an Intona - which isolates, relocks and has cleaned up bus power - on my main system, a Regen on my second system and an RUR I bought in error.
I don't know if the HydraZ performs better than the Intona. Does anyone? It certainly comes in a nicer box but, at three times the price, so it should.
D
The Itona uses 5 1117 regulators which are not great.
What does it relock? Look at the eye patterns for the Si and Ti parts on the web, compare it to the one that Itona posts, and you will see that there isn't that much difference.
What the Hydra Z does is to finally relock the audio streams before output. it's expensive but in the absence of anything else, is worth the money, especuially if you can find a used one.
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