I am using EMU 1820 and here is my method, although probably not the most efficient way. I worked for me.
- In Patchmix, I start with a "Wave 1/2" strip with output to the speakers
- Then I connect cables from the speakers to the physical input on the breakout box. Here I use 1L/1R inputs.
- In "Dock In 1L/1R" strip in Patchmix (channel that accept the physical input), insert a sent to Host ASIO. Here I use "ASIO In 5/6 Host." I also need to mute the "Dock In 1L/1R" to prevent feedback loop.
-In Patchmix, again, create a new strip. In the "New Mixer Strip" window, select, "Host Source", and choose new ASIO OUT. Here I am using ASIO OUT 29/30. Then, mute the newly created strip again to prevent feedback.
-In any sequencers, (here, I use Sonar), create an audio track to receive signal from the send from the physical input strip in Patchmix. In my case, it would be to receive signal from "ASIO In 5/6 Host." The output of the audio track will be to the ASIO OUT strip that you just created. In my case, it would be "ASIO OUT 29/30." Also, don't forget to select "Record Enable" and "Echo on" on the audio track in your sequencer so that the sequencer feeds the input signal to the output source.
-In my "ASIO OUT 29/30" strip in Patchmix, I insert another sent to "Wave L/R."
I think the signal goes like this
Wave (REW) -> Speaker Outputs -> Dock 1L/1R inputs -> Send (ASIO In 5/6 Host) -> Sonar Input -> Sonar Output -> Return (ASIO Out 29/30) -> Wave L/R
Here is my calibration graph.
If I didn't get this right, I aplologize for the wrong information.