Any audiophile use computer (MacBook) as your audio streaming source?

Well, I use a Denafrips Iris Fed from my iFi Zen Stream (with iPowerX power supply) and the improvement is significant.

Well, that’s your individual anecdotal opinion, but I’m not sure how credible that statement really is. If I recall correctly, you perceived a SIGNIFICANT improvement when you added a low-noise power supply. Then, you perceived another SIGNIFICANT improvement when you added an entry-level DF DDC. What’s next?

For the iFi Zen Stream to require two significant upgrades to become a "good" streamer, it would have to be quite poor to begin with. And yet, you still consider it inferior to the Innuos Pulse Mini. Unfortunately, your overly exaggerated opinion seems far from reality. I suggest you seriously consider other, more credible reviews. Please don’t spread anecdotal opinions that are largely untrue.

As for the SU-6 and Red, they are considered state-of-the-art DDCs, backed by excellent jitter measurements published by several reputable sources. Before questioning their quality, it would be wise to do your homework. These two products even outperform many digital processors with much higher price tags, including the DF Gaia.

https://audiophilestyle.com/forums/topic/65577-ddc-jitternoise-testing/

Well, that’s your individual anecdotal opinion, but I’m not sure how credible that statement really is.

@lanx0003  I never said anything about the improvement the power supply made to my Zen Stream because I never used the stock power supply so you’re making that up.  I have no idea if the Pulse Mini is better than my Zen because I haven’t heard it.  And many others have experienced significant improvements adding an Iris so it’s not just me, and frankly I don’t give a damn whether you believe my actual experience or not.  Maybe you should try one yourself rather than just spouting measurements. 

@lanx0003

In such cases, the additional conversion step could introduce unnecessary complexity or even compromise sound quality due to the increased signal path. 

Do you have a graph showing the evidence of the compromised sound quality? 

Here is a PC streamer that, in addition to supporting SFP, checks every audiophile box. Barebones price is 3900 € but I quickly customized it to 9660 €. It's a useful template for state of the art PC streaming though. 

https://griggaudio.de/produkt/fis-audio-pc-konfigurator/

And people are concerned about the high price for dedicated "audiophile" streamers? Geez. 

@mclinnguy If you challenge this common sense, the burden of proof is on you. Even if the degradation in sound quality isn't audible, why would anyone bother adding something unnecessary or unbeneficial?