We are really hoping for a theater quality experience with the audio that is powerful and responsive. Whether it be movies or concert blu-rays we want to have a great experience, not a good one.
Given what you’re looking for I thought of ATC speakers. They make professional speakers frequently used in recording studios and are built to generate clean and powerful sound — just what you want in a movie experience. And Anthem makes home theater electronics with audiophile roots and are a cut above the more mainstream products out there IMHO. And SVS makes great subwoofers with high quality/$ and also offer exceptional customer service. So, given your budget and using these brands, one option would be:
ATC SCM19 Monitors - $4000/pr
ATC C3C Center speaker - $2200
Anthem MRX 1120 A/V Receiver - $3500
SVS PB2000 Subwoofers (2 of them) - $1700/pr
TOTAL - $11,400
If you really want to be blown away with a special movie experience, this system would do it IMHO. In looking around I found a review in “Secrets of Home Theater and HiFi” from this past May that actually used this receiver and speakers (different sub though) so you can read their impressions FWIW. Anyway, just one option for you to consider, and best of luck building your new theater.