Hi, will wait for your feedback with the other cable and see if works well. If you can test it, I'm interested by the quality of the mic preamp which is usually good on Audient interfaces.
In case you are able to do that (just need two TRS cables), it would be good if you can do the Gearspace test as the the iD14 MkII has not be tested yet. It's more about transparency of the D/A-A/D loopback than finding which one is sounding the best, but for people using external hardware processing, it can be useful (to only add as much as much possible the change of the external processing and the less possible change from the double conversion).
The main problem would be to know if you can bypass the preamp on mic input as, if I'm not wrong, the Audient doesn't have separate Line inputs.
I submitted some files yesterday, it's here :
https://www.gearslutz.com/board/showpost.php?p=15330702&postcount=2251
If you don't have or want to create an account, I can submit the file for you.