i2S clock question


So, I’ve recently added a Denafrips Iris DDC to be able to feed my Musician Pegasus R2R DAC via its i2S input via its HDMI i2S input, and compared to feeding it directly from an SPDIF or USB input the positive results are significant and very apparent.  While I’m aware of the separate internal paths of the i2S connection versus other connections and despite many searches, I can’t find a definitive answer as to how the clocking works in the end.  I know the Iris re-clocks the data and sends it via a separate line within the HDMI connection to my DAC, but I can’t find a clear answer as to how the re-clocking of the DDC works in conjunction with my DAC. Does the re-clocking of the DDC override the re-clocking of my DAC with an i2S connection, or does it just feed my DAC a cleaner signal that allows my DAC to work better and more efficiently given its own re-clocking abilities?  Am I subject to the re-clocking of my DDC alone or is it a combo of my DAC and the DDC working together with an i2S connection?  Thanks for any thoughts and experience!

soix

@soix Before you connected the Iris your DAC’s USB input and card most likely took over processing duties from your Zen.

However that is not possible with the Iris connected.

As i said earlier the Iris is not a clock, it’s a re-clocker, so it re-clocks the incoming USB signal from the Zen and passes that cleaner signal to the DAC.

I2s will generally sound better because it’s far less prone to jitter than other digital connections. RJ45 will probably sound better than HDMI.

Please remember this is USB being converting to I2s so although it’ll sound good it’s never going to sound as good as native I2s direct from a source component, streamer, CD/SACD etc.

With that said, it would be interesting to know what type of sound signature the Iris adds (or not) to the input signal.

@designsfx That should be easy to ascertain by using just the USB with and then without the Iris. Apples for apples.

"So, I’ve recently added a Denafrips"

This is a genuine, sincere, and honest question I pose because English is not my first or even second language and I struggle with it challenged by not having much exposure to native speakers of English, which is a very difficult language I can say because I speak a few at least in part.

I have over the last few years encountered increasingly the beginning of sentences in English with the word "So." Is that important and please explain what "so" means in this context.

Thank you for helping me with my English.

@soix  and all,

I’m so glad a clock question came up, because I’ve been a bit confused.  So, I have a Denifrips Pontus ll. If I add an Iris reclocker, I’m assuming it will sound better, but let’s say I buy a Venus ll DAC or a Terminator ll,  will the Iris improve the sound as well? Or will the better DAC have a better clock and so need a better reclocker to make a difference?