My guess is, you have not been to a theater lately???
Speakers alone (in local theater), cost over a quarter million.
But if I actually went into the theater, not to feel the bass, I would want my money back.
It has nothing to do with compensating for poor capabilty of your fronts.
It has all to do with FEELING the bass.
To answer the OPs question, my answer would be the same as Dave's.
I run it to my taste, and do not bother checking at what a specific #db.
Granted, I have it set for normal listening at ~+1db.
But depending on the movie (or music), I will adjust for my mood at that time.
On a side note:
Just rewatched the first two Pirate movies back-to-back on BD (on the 96"
![Wink ;) ;)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
).
First movie = better PQ
Second movie = better SQ (and tons more LFE).