Looking for advice: I'm using Paradigm Mini Monitors for front, Paradigm AMS-150R in ceiling for rear. Should I match with a Paradigm sub? If so, which one? Does tonal balancing matter with a sub? (BTW, I have been using a big Velo FSR15, but it is not Wife-Approved It has worked well with this set-up, tho) Room size is ~4000 cu. ft. HT is mainly for movies, but I want decent musicality for soundtracks. Thanks for advice!