AIR 3 Beta for Mac

[SwissBear]

I am curious - what specification of Mac are you using ? Their explanation regarding "resources" sounds a bit suspect to me. I am using an iMac from 2008, with just 4Gb memory and a Core2 Duo processor, but with AIR3b the performance has been near-perfect with ETH and also WiFi, including HiRes, the same machine is also running Dirac and Roonbridge, so there is quite a bit going on inside this elderly machine . . .

Is the rest of your network behaving OK?

Had the same thought.  I can push DSD64 through a Raspberry Pi2 on Roon and I can't imagine AIR is hugely different resource-wise.  I'd imagine any intel based Mac could handle it fine in isolation.  
What format were the files out of interest?

I think the limited resources which are at stake are the network resources. So the processor specs are of little help to judge whether they are right or not.

Yes, the network is very clean, with a dedicated Airport Extreme just under the network interface of the D900, a dedicated 2.4 GHz band for the Devialet, aso...

I was mainly streaming from Qobuz, upsampling on the Mac to 24/192 into the D900. This was convenient as this was allowing the exclusive, direct and integer modes on Audirvana to be used and not conflicting with any sampling rate changes.

I changed my mind and am not upsampling anymore.
Cracklings disappeared following my script execution. This is good news.
Will keep updated.

Devialet asked to conduct a certain number of checks and listened to the recordings of crackling I sent. They acknowledged that the problem was reproducible under certain circumstances I had detailled. So their explanations were most coherent and I do feel comfortable with what they say. My purpose here is just to share my positive experience