GaryMedia
Wow, my participation in this topic has been mighty wobbly!
 
Then, I posted a PDF about conversion latency in its minimalist form, and was told that I wasn't specific to audio conversion A/D converter latency, even though the rest of my post pointed out that my Behringer X32 analog-to-analog latency is sub-millisecond. 
 

Nah. It's all good.
 
It's just a narrow point I was making that though less than 1ms is possible in audio converters, at 44.1/48kHz 1 to 2ms or so is more common unless something else is sacrificed. To get the ridiculously low latencies talked about in that paper they have to make sacrifices that are generally inappropriate for high quality audio applications.
 
I just felt that you might have implied that sub millisecond latency at the converters was universal when it's not at all uncommon to be greater than that.
 
Again, a narrow point and it's all good. Sorry for not making that clearer earlier. 

"Electricity" and "mixer" all before 2000... consider yourself lucky, I still use a wire whisk!

GaryMedia
Wow, my participation in this topic has been mighty wobbly!
I'll bow out for now, and let everything else flow as needed. 

I appreciate your input Gary. 

GaryMedia

timidi
...I have not had one issue with my digital setup in 16 years. DA7 via ADAT to an RME AIO card. 
...I'm wondering if I can tap the ADAT I/O of the interface and go into my RME PCIe card and still retain all the features of the particular interface/preamp etc.  I know for the ADAT that it would be limited to 48hz on an 8 channel setup. But, with some kind of voodoo, can be made to work with 4 channels at 96hz. (My RME has only one ADAT in/out).

I think I'm getting that you want to keep your RME AIO in place, and choose an ADAT-included interface from the zillions that are in the marketplace, and connect it to the RME that you have.   The answer is yes, you can do that. Many of the interfaces on the market can take their analog-in, run it to ADAT out, and also route it to the embedded USB or Firewire interface whether there's a computer there or not (although configuring it will usually need a computer there to set up the routing). 
 
Many of them also support SMUX, which is the 4-channel-at-96kHz-sampling capability that you'd need.  So, now at least you can confidently shop, knowing that what you want it out there.

Yea, that about sums it up Gary. Thanks.  
How does that SMUX work? Does the interface just handle it?

So, I did an A/B between my DA7 and the RME AIO converters today (output). 
I sure didn't hear any difference. (but then, I AM pretty old).
I was kind of amazed actually.