Routing issue with separate headphone mix

[alexe]

Hey guys, the following routing issue is driving me crazy:

I have my normal stereo output on output channels 1 and 2 and I'm using output channels 3 and 4 to have a separate headphone mix on my RME Babyface. The Babyface also canonically uses outputs 1 and 2 as the main stereo output and 3 and 4 for headphones. So, whenever the Babyface is connected to my MacBook, I have my separate headphone mix on channels 3 and 4 and all is well.

However, whenever I'm on the go and plugging my headphones directly into my MacBook, there are obviously no output channels 3 and 4, and thus my headphone output channel strip in Logic Pro becomes inactive.

If I had complete routing freedom within Logic Pro I would just route my headphone mix to output channels 1 and 2 and my main mix to output channels 3 and 4, but I've read in some other thread here that it is a known issue in Logic that essentially the main outputs need to be 1 and 2.

Does anybody know how I can best solve this issue?

I can't be the only one who's using separate main and headphones mixes and wants to listen to their headphone mix when on the go.

Edited August 14, 2022 by alexe

[alexe]

Anyone?

[David Nahmani]

I suppose that as a workaround you could set the output of all your tracks to a bus that goes to an Aux, and that Aux is your main mix. That way you could easily set the output of your mix to either 1-2 or 3-4. 

[JakobP]

I think you need one aux for main mix and another for headphone mix, set up something like in my screenshot... You can use the I/O plugin to reroute the signal from the HP mix to stereo out when needed...

EDIT Or simply set the output of HP Mx to stereo out...

Edited August 18, 2022 by JakobP