I don’t know ... the way I see this work is starting from both viewpoints and work out a solution. Is her ideal setup a 2.0 sound over wireless earbuds? Try both to watch movies that way then discuss pros/cons. I exaggerated a bit, I know, but the idea is to start the conversation, instead of sticking to your own ideas of what works. I tried with and without a sub, and now we know why we want to accept that a sub is part of the decor to stay. Same with just fronts (3.1) vs adding surrounds for a 5.1. We tried a 7.1 but decided to take the rears out (added to the office as another 2.0) as the difference was not worth, all this subjective to room+source+ears, of course.
This is less of a technical problem in my opinion, and may not be different from choosing the movie to watch or music to listen to. Compromise is not a bad thing, it keeps us interacting with positive results.
Best of luck with your decisions, enjoy your setup!
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