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In Reply to: RE: An excellent usb to I2S 'Bridge' posted by fmak on February 06, 2016 at 05:37:23
OK, in a world of $1K USB cables, perhaps not a big deal.
Not even sure it would have the same HDMI pin-out to match my Audio-GD DAC anyway. :-(
And after all of that, you STILL get benefit from the REGEN?
Plus, why do you still need the Gustard?
Follow Ups:
Yet another product (this time I2S) where the clock is put at the source side of the connection and not at the DAC side. This guarantees that the clock will be degraded by the time it reaches the critical place where it is actually used and creates a problem with isolating the DAC from jitter on the cable that would not exist if the clocking were at the DAC.
Would someone please explain to me why just about every manufacturer of "high end" products does this wrong?
Tony Lauck
"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
Would you consider the Tanly a better idea?
http://tanly-audio.blogspot.hk/
The only solution that is uncompromised for audiophile playback involves the clock being located right next to the DAC chip. (This may not be practical for multichannel studio applications.) The source needs to somehow be slaved to this clock, at least in frequency. The alternative, of slaving the DAC clock to a remote source clock can never be as good, if only because there are more components in the clock circuitry to create jitter.
The Tanley outputs digital, but does not accept an input clock from the DAC. It may have very high quality at its output connector, but by the time the clock arrives at the DAC it will have been degraded and have to be cleaned up again.
Tony Lauck
"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
You spend a lot of time on posting about where a clock should be and not it's quality, the method of transmission, the quality of any plls in place, or it's power supply. All these, and other factors matter.You have clearly not experienced the various ways that a system can be set up to sound good or 'better' with hardware but have replied on added software, computer processing, and equalisation to set up your audio preferences.
It is absolutely useless having crap clocks next to the dac chip, which many mid priced or even high priced dacs have, including your dac.
Edits: 02/09/16
I see that The Analog DAC that Mercman is presently using has an I2S input that sends out a clock to the transport, so that I2S clocking can be done properly.
Tony Lauck
"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
If you have sufficient experience with clocks, you will find that external clock arrangements don't always sound better than recovered clocks with a narrow pll.
There are so many variables, including the cable and connector impedance, that nothing theoretical is always best.
When t comes to clocking, the integrity of the signal and the impedance are of greater importance than where the XO is, given that these must have the lowest phase noise possible.
Thank you... the reason I ask is because I have a Tanly outputting i2S via HDMI(0.3M Wireworld Starlight 5.2) to an Audio-GD Master 7 DAC. So I am considering if it is a technically sound idea to change the DAC to NOS and use HQPlayer for the upsampling duties. Audio-GD warns that when using NOS mode, the source must be very good.... Thanks again for the info...
is a Tanley; seems similar architecture to my Hydra Z
The Tanley I ordered with shipping was about $480
Alan
Where from?
I saw a listing on tw taobao at Y2700. Is this a Chinese product and do you have a link giving details?
Here is a translation
http://www.microsofttranslator.com/bv.aspx?ref=IE8Activity&from=&to=en&a=http%3a%2f%2fworld.taobao.com%2fitem%2f40193288881.htm%3ffromSite%3dmain%26spm%3da312a.7700824.w4004-1253948159.6.yUlnXt
Alan
You have to translate
http://world.taobao.com/item/40193288881.htm?fromSite=main&spm=a312a.7700824.w4004-1253948159.6.yUlnXt
Alan
What is your opinion of this unit (new or old version?)
I have my Master 7 set to NOS and have used a Breeze, Gustard and Melodius USB converters. They all sound excellent. I have a Tanly on the way
Alan
Per the Audiobyte website:
"Adjustable I2S output clock polarity, to match all HDMI/I2S/LVDS dacs available"
Audio-gd follows the PS Audio "Standard". Gustard has their own scheme.
Only problem is that there are known issues with Hydra Z into Audio-gd, at least the Master 7. I don't know if they have been resolved yet, otherwise I would have gone with one of these long ago.
No, it's the other way round. The first posted protocol was wrong and has been corrected for a long while.
The AudioGD has the wrong pin assignments posted by Jesus originally. He has since corrected them. New Gustards have the correct ones.
The instructions posted for the Hydra adjustments are vague and there needs to be much clearer explanations in the manual.
Do you know if the current Master 7 (mine just arrived this week) uses the so-called PS Audio HDMI 'Standard'?Are the problems related to the HDMI input from the Hydra Z or all Audio-GD inputs?
It looks like the Hydra Z also outputs to S/PDIF?
Edits: 02/06/16
It's the AudioGD. I have used the Hydra with 2 correctly socketed dacs and there are no issues. You can also set up various output formats with adjustment pins.
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