[dillon99999]

1. you cannot use two interfaces simultaneously within pro tools. i am guessing that you are getting the 1814 to REPLACE the AP 192.

2. if you use the 1814 in "direct monitoring mode" then you can listen to whatever inputs are attached to it (which includes the 1814's analog inputs and any ADAT optical signals).

3. you can use the 1814's "mixer" feature to adjust volumes on those inputs you are listening to in direct monitoring mode while outside of pro tools (i.e. when pro tools is NOT running).

4. when you are in pro tools, you will NOT be able to use the direct monitoring mode (pro tools takes over the 1814's input and output faders).

5. my preference is to just stay within pro tools, and not mess with the direct monitoring features, because the "mixer" for the 1814 lacks eq and effects.