Hello,
Ok I see what you are trying to accomplish now. Thanks for the information.
Yes, this is a good use of the Direct I/O.
Your Pro Tools insert that use channels 21-22 of the PTHD expansion card will be directly patched to the H9000 analog I/O 5-6. You can connect the analog I/O to other external hardware etc.
Let me know if you have any further setup questions.
