Hi,
I will probably be repeating Sandyb’s answer a bit, but here’s what I would do:
I have a 5.0.2 setup (Theatre+Fronts+Surrounds+Front heights).
If this was a Beovision Eclipse or 11 or similar and I wanted a listening position for music listening, I would probably create a dedicated 2.0 speaker group, where only the Front speakers were added.
However, because bass management in Theatre works differently (all speakers play their part in the low frequencies based on their capability), I do it differently here.
I start by setting up and adjusting a Listening Position with all speakers, optimized for the sweetspot.
I’m lucky enough to have a room that allows for “the triangle”, so that I can sit perfectly in the middle of the 2 fronts at the same distance from each speaker, as the distance that the fronts are apart. Therefore, after the microphone measurement, I check that the distance to each front is set to the same (because I don’t want to mess with the timing between the 2 fronts, when I know I’m seated in the optimal position). While I’m at it, I check all the other distances too 🙂
Once the Listening Position with all speakers is perfectly tweaked, go to your desired Sound mode and ensure that the processing is set to ‘Direct’. Leave ‘Bass management’ ON. This way ALL your speakers are helping with the low end, even though it’s only the fronts that are playing everything above 120Hz.
Now you won’t hear large differences in bass performance, e.g. when switching from a movie in surround to music in stereo – AND you’re utilising the full performance of your carefully collected entertainment system 🙂
Just to recap: If I only have one seating position, I can limit myself to 1 Listening Position with all speakers included, and 2 sound modes; one in Direct mode for music, and one in True Image for movies (my own preference, use something different if you like).
Obviously, you may need a listening position optimised for more people, but that is kind of out of the scope of this question.
Remember that you can assign a specific sound mode and listening position to each individual source via the app, so that you don’t have to change manually each time.
Enjoy the music.