Please search forum (extended search) for RTL and my name. You will find several hits like these:
https://forum.rme-audio.de/viewtopic.ph … 21#p166621
https://forum.rme-audio.de/viewtopic.ph … 82#p166282
https://forum.rme-audio.de/viewtopic.ph … 22#p166122
https://forum.rme-audio.de/viewtopic.ph … 00#p165800
https://forum.rme-audio.de/viewtopic.ph … 59#p165659
[.. and more ..]
It will explain a lot in that regards and point you to some interesting information in blog articles that I wrote.
https://www.tonstudio-forum.de/blog/ind … Cbersicht/
In the UFX+ blog article (https://www.tonstudio-forum.de/blog/index.php/Entry/68-RME-UFX/ ) you'll find the RTL round trip latency of different RME recording solutions:
If your budget allows .. go UFX+ !!! This is the flagship interface, the best package on the market available in regards to every aspect you might want / need for smth like a recording interface and very scalable by MADI.
This is the way I work ....
https://www.tonstudio-forum.de/blog/ind … -DURec-DE/
... and here my current setup .. combination of Recording and HiFi corner.
"Corner stones" of this setup: UFX+ / 2x ADI-2 Pro FS R BE (Includes also a mobile setup)
This is meant only as a "real world" scenario, how versatile you can combine RME components.
List of USB/FW/TB interfaces, see my excel, here you can compare technical data and other information that I collected from forum and manual:
Blog article: https://www.tonstudio-forum.de/blog/ind … B-MADIfac/
Direct link to Excel: https://www.tonstudio-forum.de/index.ph … 0-08-xlsx/
Briefly in terms of your low latency requirements:
- RME ASIO driver are written so well that it doesn't matter much, which one you choose
- the RTL across USB/FW/TB is bigger compared to converter latency
- playing guitar over a virtual amp (Kuassa VSTi) I still get managed with UFX+, ASIO buffersize of 256 and RTL of around 13ms
Will all RME solutions you will stay below 10ms with an ASIO buffer size of <= 128.
Note: recording at 192 kHz is overkill and not required, it only puts more stress to your system (CPU, I/O) bigger files ...
I am recording at 44.1 and am still very satisfied. This CD-Quality.
For high quality music with very high dynamic (Classic, Jazz) I would choose 88.2 kHz.
There are some esoteric discussions about, that some VST should sound better with double speed (88.2/96).
If you think so ... do it .. but 192 kHz ... I have doubts about the usefullness and also most VSTi do not support this..
Please take your time and "digest" this information, later we can talk about your concrete budget and requirement to put together a nice solution for you.
BR Ramses - UFX III, 12Mic, XTC, ADI-2 Pro FS R BE, RayDAT, X10SRi-F, E5-1680v4, Win10Pro22H2, Cub13